Rhs bbc heads.

Rhs bbc heads I have a bbc 496+cubes and have seen some decent iron heads for sale. points championship that year. Fatman Guru Posts: 1081 Joined: Fri Sep 10, 2004 12:30 pm I have in my shop a 565 BBC with RHS 320 heads that were cnc ported by an engine builder that I will not name, he is a reputable builder. 3- 182 174 154. I have a 3 pairs of EQ 320cc irons here right now. Intake and chamber were awesome, exhaust port needed ALOT of help and the cam needed an extra 4-6 degrees of exhaust duration over other If you try and start from scratch building up a set of heads (i. Put them on 3 customers cars back in 03 and they finished 1,2,3 for the. cast iron and Jan 1, 2013 · Then that head is digitized and repeated on thousands of castings just like a copy machine. "Slick Rick" mentioned that Abbott racing heads in Texas knew and did alot of these RHS heads. RHS are Top Line heads. The 360 head has material missing in the wrong places for my tastes. COMP Cams 11001-03 Jan 25, 2011 · I have in my shop a 565 BBC with RHS 320 heads that were cnc ported by an engine builder that I will not name, he is a reputable builder. Jan 9, 2016 · I currently run grumpy Jenkins oval ports but theres a few things I don't like about the heads I have so im looking at buying a new set of heads. RHS can go just about any way or power level you could want. BBC 24° Sniper; BBC 24° 355cc CNC Sniper X; BBC 24° 375cc CNC Sniper X; BBC 24° CNC Sniper XL; BBC 20° CNC Hellfire; BBC 12° Hitman; BBC 12° CNC Hitman X; DRCE II 4. 300x1. 750 lift. Victor Pro-Port CNC heads are fully CNC ported versions of Victor heads if you’re looking for maximum power. Valve Sizes Angled Spark Plug Holes Single Aluminum Head Pro Action Big Block Chevy Aluminum Heads First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action head series, and the RHS BBC heads feature all Jan 19, 2007 · Performance Warehouse in Bristol, Tn is selling these as Canfield and RHS cylinder heads. 88 valves and 11/32 guides. If RHS was still getting their aluminum heads out of New Zealand, from the company that cast these iron heads, then why did RHS drop the iron head line? Make sense? I have seen these iron BBC heads, and they are NICE! 1200. These BBC 24-degree aluminum heads feature multi-angle intake and radiused exhaust valve seats for up to 5% more airflow and increased horsepower. They feature 260cc ports and 96cc chambers, with 2. These heads as I stated, were in a "marine" environment, are fairly new still, but the customer wants very much to "shed" about 80# off the unit. 8 rockers. 470 or bigger then their heads really shine but then considering RHS, Profiler, BMF all have comparable heads for similar pricing. Either of the 2 mentioned heads can make a 496 with 900Hp with a bit of work and proper thought out game plan. CNC Ported Big Block Chevy heads, Assembled. Brodix Big Duke PB 1200 spread port head with 12-degree intake valve angles is fully CNC ported. This budget friendly head is perfect for your 509 to 540 Cubic Inch operating below 6500 RPM. 868 Exh=3. Racecar Engineering™ is proud to distribute and support the entire Racing Head Service® product line. ARP 134-3601 SBC Cylinder Head Bolts Flo-Tek 102505 Assembled SBC Aluminum Cylinder Heads/Install Kit Oct 29, 2009 · I was thinking about the RHS 320s to go on a friends 540". As good of a head as just about any USA conventional head. rhs pro action cylinder heads. Since they are taking up the slack in the market when it comes to iron heads has anyone compared the Chrysler Magmun head to the now extinct RHS INDY X head. Hopefully they will not have production issues like RHS did when the took on the topline head deal. Oct 18, 2009 · This is the very first opportunity we've had to dyno a pair of pre-assembled RHS 320 BB heads, "as cast" (but read below**) directly from the vendor. 1-74. I would never own either, unless I was building a small street piece that didn't need killer heads. 310 bore. 4150 carb, 75-8500 rpm truck pull motor Mar 7, 2005 · Hell Abbott he said the RHS are some of the best 24 deg heads: "The RHS 320 heads are still some of the best 24 degree heads out there. Give Mike or Brad a call and ask about those heads. Mar 16, 2011 · Here is what I got on the RHS heads Long 88. Was one of the best unported heads ever completed. 6- 355 335 235. I thouht the heads would be too small for a 582, turned out with numbers I am very happy with for a street/strip motor. Mar 11, 2010 · The only heads I ported on were the RHS 320cc and the GM 820. Tick Performance is proud to be a warehouse distributor for the entire RHS product line! If you don't see what you're looking for here, please contact our friendly sales staff either by phone or email for assistance. I have built 482" big block Chevys with stock, 781 oval port heads and made from 700 to 750 HP, and over 650# feet of torque. It features raised oval intake ports, 55-degree seat angles, copper/beryllium valve seats, and 483- cc intake ports with 68-cc combustion chambers. 165-1. Both of those heads suprised me. 880" + . Feb 27, 2019 · Some bbc alu heads only have six intake bolts same with some intakes. Also you can talk to Kenneth Abbott of Abbott Racing Heads in Texas. 625" dual springs, spring cups, viton seals (read the P. 4K views 13 replies 6 participants last post by NPS Nova Aug 25, 2022 RHS - Racing Head Service - RHS - Racing Head Service. 3-220. In addition to these RHS also has head assemblies that come with different valves and springs to fit a racer's exact needs. 1K views 22 replies 11 participants 320cc Intake Runners & 119cc Chambers 2. I have in my shop a 565 BBC with RHS 320 heads that were cnc ported by an engine builder that I will not name, he is a reputable builder. RHS Pro Action 24 Degree Bbc 320Cc Pre-Assembled Aluminum Head For Solid Roller, Part #RHS-11011-03. These will now be branded under the Edelbrock E-Street line. Aug 5, 2009 · The RHS/protoplines I did a set last year for a 505, they were 360s that i reworked with a bunch of epoxy to work with the smaller engine. 88 INT. May 10, 2010 · When RHS says that there's 1,000 horsepower potential from their Pro Elite heads for the BBC, we believe them - our best result was an amazing 883 horsepower and 758 foot-pounds of torque, on pump gas no less, and with no need for exotic valvetrain components to let the engine spin to the moon. 900 lift, both ports flow over 380 at . A few 24 degree CNC have 2. I am going to switch the head out for a Profilier that I am going to make huge. Description Description Call for First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action head series. Dec 19, 2011 · However when I get this on the dyno I am going to make a head swap to see what will happen. (Jet boat application) Impressions: All in all, these will be a nice, sound, reliable set of very good performing heads. Capable of making up to 1000 horsepower, Pro Action BBC Free Shipping - RHS Pro Elite Big Block Chevrolet CNC-Ported Cylinder Heads with qualifying orders of $109. lbs. INT Long Short EX. They gave me permission to post. The RHS 11011-2 heads cost $3000 and the Edelbrock Victor Jr 77475 are $3200 here in OZ. Moderator: Team. Ultra-Gold Stud Girdle for Big Block Chevrolet applications with RHS heads and 7/16" studs; Solid bar, one-piece design ties studs together and properly locates them; Constructed of 6061-T6 aluminum for light weight and anodized for durability; Kits come complete with hex head adjusting nuts , interlocking set screws and all hardware; Mar 16, 2011 · I just got a new set of RHS 360cc cast iron bbc heads and flowed them here is what the first one flowed and a picture. JMO New from RHS – the 24-Degree Aluminum Intake Manifolds for BBC Applications. 880"+. 25/1. 800". Sep 24, 2018 · The ported heads provide a much smoother travel surface for your air/fuel mixture and the porting feature could add up to an additional 40hp. We've used the Pro heads with excellent results and the numbers in their catalogs were always "dead-on" with our flow bench readings. No other bbc heads in cast iron will keep up with them. The end result is a competition-ready cylinder head that features race-winning technology right out of the box. 10/1 compression, comp cam 292 H, performer intake, 750 eldy carb. Sep 1, 2009 · RHS Cylinder Heads RHS’s Kevin Feeney echoes what other experts have said about selecting BBC cylinder heads – the first step is to determine what your customer is trying to accomplish with the engine: torque/hp or the best combination of the two. Now I know flow numbers are not everything, but here is what he told me about these heads. 530 bore, 52 cc dome piston and what i'm looking for is a as cast iron head to put on this engine. 7-337. So far I found 7 other people locally that got the same heads as mine as RHS heads. May 26, 2019 · Hell Abbott he said the RHS are some of the best 24 deg heads: "The RHS 320 heads are still some of the best 24 degree heads out there. If you are very serious the 320's need a lot of work, but are worth it. Jump to Latest 9. Winning performance, superior engineering and unmatched quality are the foundation of RHS's legacy and the 24-degree Thunder BB-Chevy heads have all of that and more. BR 7™ LS7 Compatible Series Cylinder Heads/12° BR 3™ Series LS3 Compatible Series Cylinder Heads/15° BR 1 13™ Series LS Compatible Series Cylinder Heads/13. 300" intake valves. Dart’s go-to head for bracket engines is the Dart 360 “Big M” that is available in a number of runner sizes. valves, I'm having trouble with the long (good) ports stalling when going past . 00 a pair assembled, with pretty decend Jan 18, 2018 · These fully assembled Pro Action heads from RHS, come with valvetrain components for use with hydraulic-roller cams delivering lift numbers up to . He has Merlin heads on it now and wants to get alluminum heads. Your 496 would exceed your goals with a set of the RHS heads with a little work. Combo is 468 with tunnel ram on E85 runs 9. However right now it only flows more at . Valve Sizes Angled Spark Plug Holes Single Aluminum Head Pro Action Big Block Chevy Aluminum Heads First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action head series, and the RHS BBC heads feature Behrent’s Performance Warehouse. Shop Now at the Guaranteed Lowest Price! Oct 2, 2008 · Merlin Cast Iron 269cc BBC Cylinder Head, Merlin III Cast Iron 320cc BBC Cylinder Head World has a couple of BB heads that are perfect for the budget builder. 6% throat 103. The runners are large, at 360cc. These heads feature raised runners, revised chambers and relocated valves for all-out competition. Shop Cylinder Heads at Summit Racing. Just yesterday tested BBC iron heads #224-19000-360. Pro-Filer BBC Cyl Heads 290-320-355-370-375cc Bare-Assembled, As Cast or CNC Ported 290cc – 320cc w/CNC Chambers, BARE from $3098 Jun 20, 2010 · First rate performance, progressive engineering and unmatched quality are the foundations of the RHS Pro Action 24 degree aluminum cylinder heads. Quite a different intake port design. For the price its a too good to be true deal so I will call monday and get some more info. 5° Small Block Chevrolet Compatible Heads Menu Toggle. ) These are from Larry Meaux / MaxRaceSoftware Int=5. Find Parts and Accessories bbc stud girdle KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! $25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Dec 23, 2024 · For the ever-growing LS market, Edelbrock will have a revised version of the old RHS LS3 heads, with LS1 and LS7 examples to follow. The 320 casting is the head to start with in all builds. Engine is a 540, 10:1, Straub solid roller, 6000-6200 rpm, Vic Jr with either HP950 or 1000. Mar 15, 2011 · Looking to get some feedback on some out of the box bbc cast iron heads. 4-268 202 Feb 25, 2007 · Anybody using or have opinions on the RHS line of Alum BBC heads? A colleague was comparing some RHS 360 to Dart 345 Pro 1. INT EX. Flo-Tek 203505 Small Block Ford Aluminum Cylinder Head (44) Cylinder Head Style: Assembled. Utilizing innovative design features, modern engineering methods & precision CNC machining, Pro Elite Cylinder Heads are second-to-none. Feb 26, 2012 · It seems that RHS and EQ have stopped production on several different head designs. 325 Ti in. The others were ported by customers. . 4- 246 238 190. Feb 23, 2008 · yes the ones I am talking about are aluminum. reed][/quote] Nov 29, 2010 · Please advise your suggestions for a decent out of the box Aluminum cylinder head for this combination. The 360 head is bigger, but the material is pulled from the wrong areas. First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action head series. Sometimes a "Good deal" can really turn into a bad deal really fast. I have a shortblock, big m block, 3. 600" Lift 360cc Intake Runners & 119cc Chambers 2. Chevy Big Block Heads. Any help will be appreciated, Ken Jan 26, 2010 · Grumpy-Merlin heads are still a good Head but the Pro TopLine RHS BBC cast-iron heads make more HP + TQ at 510-514 cid. Box 550 Florida, NY 10921 When using Fed Ex/UPS: 38 Meadow Road Florida, NY 10921 Cylinder head engineers at RHS™ have designed a Big Block Chevy 24-degree CNC-ported cylinder head to maximize airflow and assure port-to-port consistency in runner shapes and sizes. 325" intake valves when utilizing a factory block? note: I need a minimum of 450cfm Dec 27, 2017 · but one factor on a bbc engine is weight, a iron head weights close to 74 lbs , aluminum heads tend to be 20-30 plus lb lighter in weight each, so saving 40 lbs -60 lbs off the front of the car plus another 5-7 lbs for an aluminum water pump and another 20-25 plus lbs with an aluminum intake makes a great deal of difference in total engine Nov 20, 2010 · I have a set of RHS 320cc heads on my 511" BBC that replaced a set of Brodix BB-2 plus'. I will Mar 26, 2021 · Mark, the best would be RHS 320's for a USA castings. Scooter Brothers was the engine builder then. These heads may well provide enough air flow with a little reworking and actually be better than a large runner head in some cases. Dec 11, 2009 · I have a set of RHS 360 heads that I'm looking to sell if anyone is interested. 350" intake valve size. 7- 395 362 249. They are equipped with 1. To take full advantage of the airflow offered by the RHS aluminum heads, we LS Compatible Heads Menu Toggle. 5- 315 313 218. SBC Pro-Filer Wilson Single Plane; BBC Sniper Single Sep 14, 2010 · I like the RHS 360 head. 750" Lift 360cc Intake Runners & 119cc Chambers 2. Mar 6, 2020 · I believe "most" of the old Texas Pro Stockers were around 580 inches. 880 Ferrea Intake Valves Standard (Upgrades Available) PAC Springs (. Very nice heads Find Parts and Accessories bbc heads KEYWORD and get Free Shipping on Orders Over $109 at Summit Racing! Summit Racing SpeedCard - learn how to get 10% back up to $100 Vehicle/Engine Search Vehicle/Engine Search Make/Model Search I have in my shop a 565 BBC with RHS 320 heads that were cnc ported by an engine builder that I will not name, he is a reputable builder. Comp Cams was started in the same building as RHS with just one grinding machine. Aug 18, 2008 · I have a set of the original (New Zeland) Pro Topline 320cc heads on a pump gas 582c. All flow numbers for RLD Performance heads come from their Web Site updated Aug. 08 intake valve was a killer circle track engine head. Jan 2, 2010 · Patriot’s Freedom Series heads meet the demands of the BBC world, while keeping the quality high and the price reasonable. 750" Lift 320cc Intake Runners & 119cc Chambers 2. Mar 22, 2019 · What centerline length do you guys use for the "good" and "bad" ports of BBC heads? (I have a pair in my garage, but I'm at work and I'd like to run some numbers at lunch. It is the same exact head RHS use to sell. Apr 3, 2005 · The foundry was purchased by Comp Cams and will be returning under the old RHS head service connected to Comp years back. 26,472 likes · 7 talking about this · 64 were here. Pro Topline, RHS, EQ, not much difference in castings. 2- 126 119 112. I have some on pull trucks making over 1100 hp with the RHS iron heads. I was wondering which would be the best bang for the buck. Valve Sizes Angled Spark Plug Holes Single Aluminum Head Pro Action Big Block Chevy Aluminum Heads First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action head series, and the RHS BBC heads feature all Fully Assembled w/ COMP Cams Components For Hydraulic Roller Cams Up To . See more details below. All flow numbers for Sabre Heads come from their Web Site. RHS/Pro Topline are affiliated with neither, and their heads actually make power. The RHS had a much Feb 3, 2015 · Eq/RHS BBc 320 iron heads Jump to Latest 6. 250"+. AFR RHS Dart Profiler Brodix Thanks in advance for any suggestions on cylinder heads that work well with this type combo. I have a set of castings in stock I could build Application: Chevrolet Big Block, RHS 320/360 Heads Rocker Arm Material: Aluminum Rocker Arm Style: Roller Tip Rocker Arm Ratio: 1. FEATURES INCLUDE: Jan 30, 2016 · [quoteI have 2 sets of the cast iron raised runner heads--one set as cast and one set as cast with CNC chamber. The 360 heads will make good power and run well with a little work. No port job besides the Bowtie head is anything more than the bowl. 350" a benefit? What is the better of them under $3500 bare? 320cc Intake Runners & 119cc Chambers 2. 250" intakes, 1. '12. I was extremely happy with how the AFR head did and the 702 head. There are several heads out there for around the 1500 dollar mark. 880" EX. 70 Self-Aligning: No Rocker Arm Mounting Style: Shaft Stud Size: NA Roller Tip: Yes Roller Trunnion (Body): Yes Rocker Arm Nut Included: NA Rocker Pivot Balls Included: No Rocker Arm Finish: Natural the RHS™ legacy and the 24º RHS ™ Big Block Chevy heads have all of that and more. Here is what some stock RHS 320cc head flowed on my bench. Racing Head Service produces high performance heads, intakes valve covers and blocks. Racing Head Service offers bare or assembled Pro Action BBC 24-degree cylinder heads with either 320cc or 360cc intake runners; both feature 119cc combustion chambers. Official Release: New RHS 24-Degree Aluminum Intake Manifolds for BBC Applications are proven to outperform competing products on the market. All have raised exhaust ports. O. 9- 386 368 268 1. Valve Sizes Angled Spark Plug Holes Single Aluminium Head Pro Action™ Big Block Chevy Aluminium Heads First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action™ head series, and the RHS® BBC heads fea Get the Best Performance with COMP Cams Ultra-Gold Stud Girdles Chevy Big Block 396-454 4035-B parts at JEGS. 335 intake valve, 1. The first one is the assembled Merlin oval port cast iron head, with a 269cc intake volume, a 119cc combustion chamber, 2. Last weekend I found a super good deal on some mint, fully assembled RHS Pro Topline 320 heads. These Pro Series heads also feature raised exhaust ports that improve flow on the exhaust side. 590-inch exhaust valves. 325/1. I remember dealing with the original Racing Head Service company in Memphis. ARP | #1011343601. I know for sure that the lower HP heads like the 12402 and 12400 which are a 67cc and 76cc head went out of production last year and are not going to be made any more. I have lots of experience with those heads, aluminum and iron. First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action™ head series. 500 May 3, 2016 · The RHS™ BBC 24-Degree CNC-Ported Aluminum Cylinder Heads are available with either a 339cc or 376cc runner volume and a 121cc combustion chamber and are designed using the RHS™ exclusive Clean Cast™ Technology to deliver superior port-to-chamber transitions for greater airflow. Mar 7, 2013 · I charge $700 for cast iron bbc heads on a complete port job unless it something that is going to take a ton of grinding then I charge more, $160 for the valve job and $30 for back cuts on valves and $90 to mill both heads up to . 39 CSA of pinch 4. These are definitely for the serious street/strip car, and a pair will cost you $2,400. Products. These intakes are designed for maximum airflow and power with a 4500 Dominator-style carburetor flange. It will be interesting to see which does better. I even got ARP head bolts and pushrods. & 1. Flo-Tek | #7223000. The final package included their 2. I had some 320 size ones. 20's. Jan 2, 2010 · Compared to the stock peanut-port castings, the RHS 320cc BBC heads were a serious step up the performance ladder. ), titanium 10* retainers, 10 Sep 29, 2023 · The Pro Topline and RHS bbc heads are good heads. S. Apr 24, 2009 · RHS BBC 360cc Pro Action Heads. Mar 24, 2007 · Anybody using or have opinions on the RHS line of Alum BBC heads? A colleague was comparing some RHS 360 to Dart 345 Pro 1. Jan 20, 2013 · Hi, Putting a set of RHS #12317 heads on a friends sbc. Fully assembled and a tremendous performer for Big Block Chevy street, drag race and powerboat applications. 700 lift for 1200-1700 dollars a set depending on spring packages and machine work. 2. 8 posts • Page 1 of 1. 35 Short 87. Fatman Guru Posts: 1081 Joined: Fri Sep 10, 2004 12:30 pm Oct 12, 2014 · I can see how how $3k for a set of good heads is easy to get. Patriot performance has a 320cc head that flows 365cfm @ . Jun 23, 2009 · Buy COMP Cams 4035-B Stud Girdle Bar (Bbc Rhs Headgold (1): Camshafts & Parts - Amazon. Both ware as cast though the darts did have some machine work down into the bowl beyond the valve job. "There was another thread about the RHS heads a while back. 900 Lift) Titanium Retainers Heat Treated Locks Heat Treated Spring Seats 120CC Chambers 4. Jan 31, 2019 · Swap Shop - Engine Quest 320 BBC Heads (Pro Topline/RHS) - Bought these and can't find anybody to assemble them here in SoCal that's fairly priced and I trust to do the work correctly. I am about to take legal action to get them replaced with Canfield or RHS heads, any help will greatly appreciated. They are 23 degree,64 cc, straight plug heads. Our BBC heads come as cast with a 320cc intake runner, US made bronze guides, and our 5 angle valve job. Your 470" rule isn't a problem IMO, the 320s are best to start with, titanium valves are also a must for that rpms (piece of mind) plus you can do more with the camshaft Feb 6, 2010 · This is one of my test heads 2. When I purchased my set last spring (2012) and returned to the web-site a few weeks later, they had been dropped from the RHS catalog along with all of their cast iron heads. Fully Assembled w/ COMP Cams Components For Hydraulic Roller Cams Up To . 300" IN. 4-273. RPC, Proheader, liberty etc, dart pro 1 based casting the SVE and promaxxx stuff looks like its based off the performer/ E street series heads. Feb 25, 2010 · I just flowed an RHS aluminum 360cc head right out of the box. @ 4500rpm. Innovative cast iron design w/ race-inspired features Delivers maximum airflow for RHS Cylinder Head Parts Kits 11120-01B Cylinder Head Components, Valves, Springs, Retainers, Locks, Studs, Guideplates, RHS 320, Chevy, Big Block, Kit Part Number: RHS-11120-01B May 1, 2010 · Brass head bolt tubes allow room for these super-wide intake ports that would normally interfere with the head bolts.   Perfect for fast bracket cars. IIRC that's an EQ part number. We have custom designed a head to meet the demands of the BBC world, while keeping the quality high and the price reasonable. Aug 14, 2014 · Brodix 383 Head Hunter head with large oval intake ports. 30" intake valves instead of the 2. The cast iron 230 with a 2. 5-295. 600-inch. 1- 69 69 56. heads. RHS Castings 24* Valve angle Raised Intake and Exhaust Ports Extra Thick Deck 2. '14. 250" + . Just trying to find a recommended plug for his setup. The heads cc'd at about 319-321cc after porting. A set of fully CNC'ed AFR 335 BBC heads #2001 would work good for you IMO. porting, valves, springs, milling, valve job, etc) you'll end up spending at least $1500+ at the end and end up with a set of heads that's no where near the fully optimized CNC set of heads. Mar 4, 2013 · This is the "so called new" EQ BBC head. Big Block Ford C Style; Big Block Ford C Style Canted Valve; Intake Manifolds. Cylinder head The key to optimizing a BBC is pairing those big cylinders with heads that can keep up, and to demonstrate the state of the art in out-of-the-box head technology, we recently tested RHS’ brand new line of BBC heads on a textbook example of a big, big block – a 572 cubic inch mill built by DNE Motorsports. 800-1. Material Type: Aluminum Mar 20, 2019 · The EQ head is definitely the old Pro Topline- RHS head. Apr 20, 2010 · It took a little work, but in the end, these are a very decent set of heads. Capable of making 1000 horsepower, the Big Block Chevy heads provide you with more features, better flow chart numbers and superior "as cast" finished quality. 2-157. Jan 28, 2012 · RHS BBC 320 Iron Heads ??? Post by PFC1 » Sat Jan 28, 2012 11:09 pm I'm porting on a set of these, utilizing 2. Looking to make around 675 hp and 650 ft-lb of torque. Chevy High Performance used these to build their 675 hp 496. 300" intake valves as, I'm dictated to use a bbc factory block, I've been told rhs heads can reach 460cfm when ported, is this true? And can I use 2. Jul 13, 2012 · here is a barely related (both larger displacement BBC engines) build video keep in mind they are promoting aftermarket BBC heads for sale and they don,t mention, changes to compression, detail port work, mention the cam timing are much of any thing else, just that the engine made 880 hp with the heads used. Features a 69cc combustion chamber available bare or fully assembled. 0- 386 375 273 Nov 29, 2015 · They have the most potential. 8- 378 360 261. IK® Series Cylinder Heads/23° Race-Rite® Small Block Series/23° Dragon Slayer Series Nov 25, 2023 · Good evening gentlemen, what are the best flowing bbc heads @2. Patriot’s BBC heads come as cast with a 320 cc intake runner, US made bronze guides, and a 5-angle valve job. 650" lift at the best online prices at eBay! Free shipping for many products! May 8, 2009 · This is one of my test heads 2. But now living in Australia that same set of heads will cost $4500. Dec 7, 2015 · Head Solid Bar Design 7/16"4012 265-400 Brodix Pontiac Solid Bar Design, 40/60 Stud Spacing 7/16"4021 396-454 Solid Bar Design Standard Stud Spacing, Brodix-2 7/16"FORD4013 289-302, 351W Standard Head 3/8"4014 289-302, 351W Standard Head 7/16"4015 289-302, 351W RHS ® Pro Action or Motorsport Aluminum Head 7/16"4016 351W Boss, Motorsport RHS BBC heads. Apr 6, 2012 · I have a low compression (8:1) 454 that I want to build for my ’70 El Camino SS. They are gasket matched to Fel-Pro 1275, runners and bowls blended, Nextex springs-221425p, titanium retainers and T&D 1. Pro Elite Big Block Chevy Aluminum Heads Increased airflow and efficiency are most essential for those drag racing and marine applications looking for the biggest possible gains in horsepower and torque. The RHS Pro Elite series of CNC-ported cylinder heads is designed for absolute maximum engine performance. Here is what it flowed on a 4. And you indeed are correct. 00. 8-350 The only heads I ported on were the RHS 320cc and the GM 820. 35 don't know length my son lost my tape measure again. 2-144 136. RHS BBC iron. They will outdo the worked 360 heads. 350 valve for a customer of mine that has a 632bbc mudtruck. Are you looking for torque or horsepower, or the best combination of them both? Sep 21, 2017 · I've used many RHS BBC heads, they work well. Ford Performance COMP Cams Bbc 320 Alum Assem For Mech Roller. RHS quit making iron heads and EQ got the molds. You can put 1500. The RHS had a much Racing Head Service (RHS) offers cylinder heads, engine blocks, valvetrain components, gaskets, hardware, and more. EQ had the same heads but the 76cc head will stay for now as a stock replacement head May 21, 2019 · The original BBC heads were pretty good also for the money. Makes getting "up-on-plane" with the boat somewhat easier! Jan 29, 2010 · I just flowed a RHS 320 iron head that I have ported for a truck pull engine. Fatman Guru Posts: 1081 Joined: Fri Sep 10, 2004 12:30 pm Find many great new & used options and get the best deals for Pair RHS 11301 24-degree Pro Action Cast Iron Cylinder Heads Big Block Chevy at the best online prices at eBay! Free shipping for many products! Mar 16, 2009 · Our Freedom Series heads have started a revolution in the performance world. Personally I would go either Flotek/Promaxx 315/317's. RHS ™ BBC heads are a tremendous performer for Chevy Big Block-powered street, drag race and powerboat applications. The Thunder heads are a tremendous performer for Chevy Big Block-powered street, drag race and powerboat applications. Shop Summit Racing for RHS at low prices! Summit Racing SpeedCard - learn how to get 10% back up to $100 Nov 17, 2007 · That's unacceptible to my guys looking for some reasonable performance. 600" Lift 320cc Intake Runners & 119cc Chambers 2. The RHS's flowed 20 cfm better then the CNC ported BB-2's out of the box and after porting flow over 408 cfm @. Call for Price. 500 lift. Jun 19, 2016 · Good evening gentlemen, what are the best flowing bbc heads @2. Brodix race rites have eight bolts same with edelbrock RPM/chevrolet performance not sure if afr 265 has but think they do. e. 030. Its a relatively mild motor but has made about 800hp with ported World 310 heads. Cylinder Heads. Norm at Ultra Tech just did some chamber work and bowl blending. They are advertized as 290cc intake runner but I am worried they might try to pass off pro comps as pro toplines. Find many great new & used options and get the best deals for NEW RHS Pro Action 320cc BBC Cylinder Heads . Aug 15, 2012 · Anyone ever use RHS 320's? My friend is thinking about getting a set for his 67 nova chassis car. 3-230 RHS BBC heads. Oct 25, 2008 · Patriot and Pro Comp are NOT the same. General engine tech -- Drag Racing to Circle Track. Aug 8, 2013 · Interestingly, my RHS Pro Torker Vortec heads have "350C" cast into them between the spring pockets. 73 CSA of pinch 4. I ordered the Edelbrock after not being able to obtain the RHS head. Right know the heads are being cut to a 2. Fatman Guru Posts: 1081 Joined: Fri Sep 10, 2004 12:30 pm Aug 18, 2018 · flotek the gt40 based heads, not really a fan of the head it was based off of since I had an set of X heads years ago. 76 stroke 4. Valve Sizes Angled Spark Plug Holes Single Aluminum Head Pro Action Big Block Chevy Aluminum Heads First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action head series, and the RHS BBC heads feature all of them and more. 00 into a set of iron heads like these and have a set of brand new heads with quality parts that will flow 320+cfm and support easy 650hp and you're still a long way from a properly assembled set of decent alum. Would this be a good head for him? The BBC head does look like a nice piece and a close cousin to the RHS head. 9 BS; Small Block Ford; Big Block Ford. All flow numbers for RHS — Racing Head Service heads come from their Web Site updated Feb. Jun 25, 2008 · When you get into 502 bore 4. When using the Post Office: P. I also found 2 of the Edelbrock matching intakes 2949. 343" stems), 1. Edelbrock and afr are ”roval”. 325" intake valves when utilizing a factory block? I have in my shop a 565 BBC with RHS 320 heads that were cnc ported by an engine builder that I will not name, he is a reputable builder. Dart, Brodix, Profiler, RHS, Edelbrock all make them. com FREE DELIVERY possible on eligible purchases Jul 23, 2009 · i believe pro topline became pro action which were around for a while , but qaulity control and supply from new zealand became a problem, last i know they were bout by rhs racing and thats what they atre now after the plant had been shut down and resold a few times, they were a good head, but they need to be double checked by a real machine shop before install, ive seen a lot of guides to AFR's 335cc BBC Enforcer Cylinder heads feature our Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. 7 roller rockers and stainless steel valves. Oct 31, 2021 · RHS BBC heads. Jan 1, 2011 · It's hard to justify putting a bunch of $ into iron heads, so it really just depends on what you want. thanks for the input. In addition, the RHS™ BBC head is available in aluminum or a cast iron version for racers that run “iron only” classes. RHS® delivers “Power By Design” with superior cylinder head technology Oct 29, 2009 · RHS BBC heads. Valve Sizes Angled Spark Plug Holes Single Aluminum Head Pro Action Big Block Chevy Aluminum Heads First-rate performance, progressive engineering and unmatched quality are the foundations of the Pro Action head series, and the RHS BBC heads feature 339cc Intake Runners & 121cc Chambers 2. I've got some "coated" Aluminum heads on the "drawing board" for him. 25's they would come with. 250" IN. I have done lots of work with these heads and have engines that make over 1200 hp at 540 ci. 250" Long Intake Valves & 1. Mike Stark at CFM Performance in Indianapolis ported mine for $800 then I took them to Brad West in Arkadelphia, Arkansas and had Titanium 2. 3-207 171. 900 lift, bad runner went 449 at . MaxRace Software Sep 22, 2017 · Most newer 24 degree factory CNC BBC heads have 2. Pro Comp heads are useless junk an make zero power, Patriot heads are a little better. 100" Long Exhaust Valves Angled Spark Plug Holes Single Aluminum Head Application: 468-540c. The 320 head is the preferred starting point for serious builds. I will make sure that pro topline is cast into the head also. Capable of making up to 1000 horsepower, Pro Action™ BBC Cylinder Heads provide you with more features, better flowchart numbers and superior “as cast” finished quality. I wanted to build it using aluminum heads. Capable of making up to 1000 horsepower, Pro Action BBC Cylinder Heads provide you with more features, better flow numbers and superior "as cast" finished quality. 3% 106%bowl CSA over shortside 4. RHS service has no idea how good they were. 100" exhausts (all using . i. Categories: Chevy Big Block Heads, Cylinder Heads. At what engine displacement and RPM is the 2. Oct 2, 2008 · The Key to Finding the Right Cylinder Head RHS’ Product Manager Kevin Feeney summed up the process of finding the right set of heads for your BBC, “The first step is to determine what you are trying to accomplish with the engine. I have a set of castings in stock I could build Howards, Maximum Effort Stud Girdles, Chev BB, 7/16" Dart Pro1/320/360, Brodix, Canfield, AFR, Pro Topline, World: In Stock Jul 4, 2023 · RHS - Racing Head Service, Memphis, Tennessee. Jul 21, 2011 · They were a good head. They go real good with a little work and can make big power with lots of work. 6%bowl CSA over shortside 3. 70/1. We kinda get screwed by the tax man down here. 1-77 69. Fully Assembled w/ COMP Cams Components For Solid Roller Cams Up To . All flow numbers for Ron's Porting Service heads come from their Web Site updated Aug. These heads are NOT cnc ported by RHS, those heads are here. BBC, made 780hp@6250 & 760ft. Here is a post from 2017 about RHS Elite heads. Capable of making up to 1000 horsepower, Pro Action BBC Cylinder Heads provide you with more features, better flowchart numbers and superior as cast finished quality. He's just going to "eye-ball-it" the best he can. If you know someone let me know, otherwise there up for sale for what I have in them $860 These fit markIV, gen 5 & gen 6 with the Fully Assembled w/ COMP Cams Components For Solid Roller Cams Up To . 1800351351 **Free Freight on orders over $200** Big Block Chevy Pistons & Rings Big Block Chevy BBC Water 73 results for: "RHS Cylinder Head" Items Per Page: Sort By: 1 2 3 . 35 and 1. 6-315. A common hand ported set of heads is not going to be optimized since the head porter doesn't have the time to do it right. 303 GM 990 BBC cast-iron Good-Port in ported shape rhs cylinder heads. 82 exhaust valve, The good runner went 469 at . Aug 20, 2011 · You need to figure out what the airflow requirements for your engine are and go from there. 88 valves installed. I bought the heads bare and had my engine builder put in Ferrea titanium 2. 2-156. bndjj agt ojzl noqxk vyea xins geoq dcrwge vdhh fktfsz