050, lift . (0) $3,670. 97. 43 out of 5 stars Jul 10, 2017 · '72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3. 55 gears 454 Stock crank and Rods SSP bolts Jul 11, 2013 · Also the Vic Jr on the AFR's was port matched were as the Air Gap was not, even still the Air Gap was within 15 hp at 5700 rpm. Would it support 6000-6500 rpm? Would I be better off with the 305? I really like the looks of the 265 head as far as numbers go. Clay Smith Cams, home of Mr. 15 Deg initial & 35 Deg total timing. 6:1. We recommend a high rise dual plane with the Jun 18, 2019 · converting my 72 to a 454 bbc with afr 265 heads. 11. 600 @ the valve, 109 lobe separation. 76 comp, comp 248/253 110, 106 solid roller, scorpion rocker arms, Scat 4340 crank, 6. Oct 26, 2014 · Do you race the car or drive it on the street? A dual plane will drive a bit better and overall throttle response will be sharper. 8:1/T56/3. $2,506. i know people say lemons are the go but they are far to big for a street car. This post has been deleted 496 with the same AFR 265's, 10. Jun 26, 2022 · to be frank, i think the rpm you need to make use of the difference between an afr head with CSA 265 versus 335 CSA with "only" 454 cui is well beyond 7000 rpm. 880 Exhaust Valve, CNC bowl blend, Full CNC Chamber w/ Hydraulic Roller Springs . Oil pan holds 6 quarts of 10-30 Valvoline, carb will be a 1000 CFM 4150 Jan 7, 2023 · That put the pattern in the center of the valve on intake and exhaust, and proper 90 degree relationship. Lowest Price Guarantee. 5L/396 AFR 265cc Oval Port Magnum BBC Cylinder Heads Assembled Cylinder Head Style and get Free Shipping on Orders Over $109 at Summit Racing! AFR 265cc Oval Port Magnum BBC cylinder heads are designed to be used on engine displacement up to 468 cu. CNC bowl blend, intake and exhaust ports are not fully CNC ported. 9 comp. Jul 12, 2011 · Possibly it might show some upside with a larger carb. My 4 bolt block is currently at the machine shop. '22 Mustang GT/auto/3. Sep 10, 2012 · Most of the guys over here are buying the 4. straubtechnologies. So now I am looking for piston recommendations for use with AFR 265 heads. The heads come with some of the best valve- springs installed on aftermarket cylinder-head packages. Sold in Pairs, 2/pkg. 060 over 454 with AFR 265 heads with a 228/238 @ . looking to see what people are using for headers and how much modification they required to fit. 190 Intake 1. - Intake Port Location: Stock. Vortecpro 496" Big Block Chevy VortecPro / AFR 265 Heads238@. 75" round port and the 68198 gasket is part number 27550 which is a square port gasket which is said to be used with all BBC and the GM ZZ502 heads. 0 CR and a Straub solid Apr 24, 2010 · Well Super Chevy built a 2500$ grenade IMO. Equipped with Titanium retainers and high quality components, these heads are capable AFR ENFORCER 200cc HEADS CHEVY 400/406 WITH STEAM HOLES 65cc STR. These are recommended for smaller cubic-inch engines (396 to 468ci) used for street, towing, or street/strip, operating up to 6,200 rpm. This head features 60/40 valve spacing and requires shaft mount rocker arms for optimum valve train geometry (can be used with . 050 hyd roller, 111/106 . I am building a street only 70 Chevelle that will have a TKX, 3. 0 Reply. (0) $1,708. are you ready to invest in a suited valvetrain to make the heavy BBC valvetrain reliably live up there? The 265 CNC head flows 335 CFM at . 73. Jump to Latest Follow 21 - 40 of 60 Posts. He is showcasing AFR's 265cc CNC Oval Port Heads for the Big Block Chevrolet. so enough for 670hp. The current 496 has the usual 18cc domes and the 572/620 gen 6 hydraulic roller in it. 1973 block 454 2 bolt with studs bored 60 over and planed. Jun 30, 2016 · I have seen some exceptional dyno sheets on here. Best 1/8- 6. 5-1 compression) Straub hyd. 5" Intake and 8. 027 - head gasket Piston is -. Normally a hydraulic roller uses 7. ( mike lewis) Solid Roller . 549 lift, 10. HR-8486-7-CSR BBC 454 to 470 CID with AFR 265 or 290 Oval Port heads to max of 6200 rpm. If you need extra horsepower, performance and the muscle car sound, check out our line of cams. The . 625/. Specifications: . Apr 21, 2015 · How about a 600hp 454? Given that the baddest factory 454 (the LS6) was only rated at 450 gross hp, and it sported rectangle-port heads. Option 2: Our small port, high velocity 265cc cylinder heads are a cost effective choice compared to re-worked factory big block chevy cylinder heads. AFR's 227cc "Race Ready" and "Competition" LT4 heads feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings and high quality components throughout. com Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research. 09/113. '67 Chevrolet Biscayne- SS427 L-36/TH400, '67 Hell Camino-BB 427/TH400 , '66 300 Deluxe 2 door-230/PG. Head Options. FREE Shipping. I have a new set of headman 1 3/4" headers for him as well. 385 AFR 325 Angle milled to 108 cnc op. Short block is internally balanced and assembled. 32. TREperformance sells new AFR 265cc BBC Oval Port Magnum aluminum cylinder heads from Air Flow Research for almost any Chevy big block vehicle, this is for part # 3610. For ideal geometry and wipe pattern AFR strongly recommends AFR stud mount rockers part #6043 for applications below 7400 RPM and . Mar 6, 2016 · 496 AFR 265 Dual Plane Intake. AFR - Airflow Research 3640 - 290cc Oval Port 24° Magnum Street/Strip Aluminum Cylinder Heads BB-Chevy. I went with that recommendation and found it to be pretty much spot-on on the engine dyno. 42 gear. 32 60 ft. Howards Hdy Roller 120405-12. operating at or below 6,200 rpm—providing tons of bottom-end torque, tremendous throttle response, and great all-around power. Scat cast steel crank , procomp H beam rods. 705 ex. 880 Exhaust Valve, CNC bowl blend, Partially CNC Chamber w/ Solid Roller Springs . 26-60', 5. 630 lift Bullet HR. 710" Max lift, Pair of Heads. looking for 1 7/8 or 2 inch Jul 2, 2018 · Ive run the 265's on a couple of different 454's and 2 different 496's including the one I have now. - Exhaust Port Volume: 132CC. #4. For my situation, I have 063's that are flat milled down to 91cc and the AFR's would be a big improvement over the old closed chamber heads and not lose any compression. , Undated [19th century] Containers: Box 4 Abstract: Contracts for labor with a former slave, Reyton McCalley, "a comon…field hand upon a plantation," for the entire year of 1866. 3. 5 scat forged crank 4. Chris Straub. 55 - Sold. not sure (yet). 8-9. 5" - 10" 3000 stall converter and no more than a 3. Containers: Box 5 Abstract: Poem "Poor little slave", with a pen and ink illustration on cloth, showing a kneeling slave praying to God. :yes: 70 Chevelle - 3300#. ) It has since made more power than that, close to 590 now but I think this was back with a port-match air gap. 5:1 Compression91 Pump Gas695 HP684 Torque\ In the aluminum category, AFR has 265-, 290-, 300-, and 305-cc port heads. Comp Cams XR282HR 230/236. 060 over 289 casting block, 10. In the process of building a 489 and will be using a Straub 302-302-9 cam shaft. The cam is a hyd roller with around a duration of 240s @ . 14. It comes equipped with a 2. 710" Max lift, Pair of Heads Dec 14, 2009 · My engine is a Gen VI 454 with stock bore of 4. TC Member # 4431. Apart from being extremely functional, AFR produces a high-quality, 100-percent American-made product at a very good price. You need an 800 hp 540 or larger to see benefits of 2 1/8" headers. Status: Car-Less. Mar 19, 2014 · John3311 Discussion starter. Sep 4, 2009 · AFR is proud to release our all new 265cc oval port BBC design with an impressive 350 CFM of airflow on tap and capable of over 700 HP. Learn More. 024 below deck, trying to get quench in under 50 Hoping for around 9. 73s. The equivalent could be what you are already using. Best suited for +540 cubic inch large displacement racing engines, operating at or below 7600 RPM. Installation instructions are embeded into the page as a PDF document so you can save or print the instructions for later use. 4. Oct 9, 2022 · Tweet. I have the AFR 265 heads with 112cc chambers and plan on SRP pistons and shooting between 10. www. 1975 Malibu (was grandma's straight 6 car) 496 BBC (AFR 265's, Straub Hyd Roller, Callies/SRP rotator, Eddy Air-Gap, AED 850) Jake's TH400 / 3. Find CHEVROLET 7. I am putting together a flat top piston 454 short block for a friend. I have an estimated 9. 73 gears, and NT555 305/45R18s, and Ridetech suspension. 880 exhaust valve and features AFR’s trademark ¾ thick head deck for Feb 27, 2019 · 5,991 Posts. Apr 20, 2015 · AFR 290s (milled to 104 cc to create 10. Shooting for around 600hp/600tq. 5:1 Gen VI 454, now with AFR 265 ovals and a performer rpm air gap intake. Feb 22, 2024 · I’m thinking of sticking it NA in a new project car…cam is a . 2982 posts · Joined 2011. 44. FLOTEK 290. We found them for $2,199 a pair. Image is a representation of this item. Oct 28, 2012 · The 265 AFR head adds the most value for the dollar. 598 solid FT in a 4300 lb vehicle? Mostly street but will make a trip or two to track. 11 Chevy 12 bolt Save Share Like Aug 7, 2002 · 496 AFR 265 Dual Plane Intake. L-29 461 BBC 11. 385 I beam rods, Milodon 66 chevelle oil pan, M77 oil pump blue spring, ported RPM air gap intake, holley HP1000 carb, open 1 inch plastic spacer, 2 inch hooker headers, 3 inch magna flow mufflers Dec 20, 2018 · 1970 Chevelle, 489, Lunati solid 292/301, . 750 in . Awesome torque, great street manners and you don't have to rev it to the moon. Looking for feedback on current 496 build: Car is 68 RS/SS Camaro 3:73 M22, street car. Given my current cam/piston combo, Ive been advised to go with a set of Dave is at the PRI show again for this episode of Parts Talk. 375 (3/8" - I have them on the 502) raised exhaust shouldn't be an issueshould actually help with header ground clearance. After a little over a dozen pulls, we stopped at 737hp/639tq :hurray: with a very flat torque curve. Aug 22, 2015 · 613 posts · Joined 2006. AFR recommend an Autolite 3932. Best suited for +540 cubic inch large displacement big block chevy racing engines, operating at or below 7600 RPM. Head Gasket: Factory block (289W, 302W and 351W) - AFR #6808 or Felpro 1011-1 Jun 10, 2008 · The Hedmans fit best of all 3. Apr 24, 2010 · Well Super Chevy built a 2500$ grenade IMO. 5/124mph -with a "top fuel" timing curve - sold. View Details. 700 lift (and many at 0. 880 Exhaust Valve, CNC bowl blend, Full CNC Chamber w/ Solid Roller Springs . 600 lift. 050" Hyd Roller Cam10. 4L/454 Airflow Research (AFR) Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Save Up to 10% on Select Holley Family of Brands Products - Shop Now! Vehicle/Engine Search Vehicle/Engine Search Make/Model Search Dec 21, 2011 · AFR 265, Brodix RR 270, TFS 280, . #41 · Mar 8, 2021. If you drive it on the street much a larger tube may hurt low end power. That is a far cry from the factory ratings of the rectangular-port Apr 18, 2015 · The stock 049 flows 250 Cfm so it will support 515HP. 578. 569" cam. 010" W. 460 BBC, TH400, 4. I run the Headman ceramic coated 3/4 length,so the collector is not near the ground and the 3 inch pipe tucks up tight. This head is completely optimized with 80% CNC ported intake and bowl blended exhaust. . AFR 265cc Oval Port Magnum BBC cylinder heads are designed to be used on engine displacement up to 468 cu. 10-10-2022, 06:14 AM. Like. - Intake Port Dimension: 2. 790 lift. 8" exhaust. ( 7 ) Estimated Ship Date: Jun 25, 2024 (if ordered today) Free Shipping. I ran Hooker comp 2" on the dyno and made 543 HP 550TQ with my 434 BBC and AFR 265's From Mike Mar 7, 2021 · HR-8486-7-CSR BBC 454 to 470 CID with AFR 265 or 290 Oval Port heads to max of 6200 rpm. AFR Heads, 3620-1 BBC AFR 265 Oval Port Heads, 112cc, Solid Roller Springs. 571 and 454 respectively. Equipped with Titantium retainers and high quality components, these heads are Nov 16, 2011 · A cheap upgrade for the cam is a ZZ502 take out or from Summit and if you find some 454 HO heads you could basically clone one pretty low buck. ? Jump to Latest Follow 20K views 32 replies 21 participants last post by steelcomp Feb 7, 2012 Feb 11, 2014 · Up top, we went with a set of deceptively capable oval-port AFR cylinder heads. 55’s, 10” converter in a 71 El Camino. These are great Mar 9, 2010 · The 68196 gasket is number 27530 which is a 1. Drop in a good 9. Save Share. 454-R intake, a Holley 950 HP carb and SFI-approved, neutral damper from Procomp Electronics. Option 1: 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. Check out my peanut port . Mar 10, 2009 · Last Friday we dyno'd the 496 with AFR 315cc, custom CSTRAUB cam, and the good old 10. com AFR - Airflow Research 3704 - Magnum 18 Degree 457 cc Racing Aluminum Cylinder Heads for Big Block Chevy - Rectangle Port. - Intake Port Volume: 265CC. If you have built your teenage dream car and put AFR oval ports on it than there is no doubt this is the cam for you. AFR 265 Cylinder Head Install on a 454 BBC -Part #18 Chevy 454 Big Block Performance Build Now it's time to install the AFR 265 cylinder heads. 030 454, runs low 11's, 8:1 compression and idles at 800 RPM if I want it to, pulls 15" vacuum with a flat tappet cam. Cam shaft I want to go with is a comp cams part # 11-450-8 specs of duration at . Dec 11, 2009 · I am surprised that AFR has not put some test mules to work from a third party to give real world results, like the Eliminator heads were put through. roller 240ish duration (incredibly streetable, drive this thing everywhere with the A/C on. I have a 454 (not a tall deck block) with AFR heads. Oct 15, 2014 · I have a customer in Canada that had a BBC in his Nova which had bad street manners, lots of bucking at low RPM, unburnt gas and so on. Jul 18, 2012 · Finishing touches on the test mill included an Edelbrock Victor Jr. 10 gear, ATI 8" converter. However, big block heads are alarmingly expensive. 54 posts · Joined 2011. 57. 77 in a 3500# Nova. 5:1 496 with 252°-260° @. 5:1 short block. 19 intake valve flow 302 cfm and will support 622HP. MSD atomic fuel injected. Extent: African American and African Diaspora collection. Worth the cost? - As I begin the tear down and rebuild of my 454, I realize that if Im ever going to replace the heads, now is the time. 10@118mph 9-30-22. 050 offset Jun 12, 2005 · What about a pair of iron oval 781's for a mild 454 or 496? Ported on a serious combo they will support 800 HP. 85, 9. In fact, every aftermarket head we tested actually offered better flow number numbers at 0. Dyno was Superflow 902. Our largest and best flowing 24° big block chevy cylinders heads, these cylinder heads feature 100% CNC machined intake runners, exhaust ports and combustion chambers. W[illiam] H[enry] Furness ALS; [Philadelphia, Pennsylvania]. 25" stroker kits($1500) and building 496's and using either race rite 270's or the AFR 265's. 53 @104 mph 1. ( chris Straub ) Dec 24, 2014 · C3 Tech/Performance - Stock '241 heads versus AFR 265's. 4 compression, with a Mahle piston. Our 37cc cylinder heads feature fully CNC machined intake runners, exhaust ports and combustion chambers. 050, 108 lobe sep, 4 degrees advanced AFR 265, Callies Compstar, Wiseco pistons, Jerico DR4, 4. 830"W x1/2 Radius. 1050 double pumper 4150 and single plane. 770"H x 2. not sure. AFR Magnum 300 OvalFlow Data Aug 18, 2019 · 454 Block. 553"/. 108 sep. Actual item may vary. 400+ HP and 450+ TQ will move that big body. On my 439 that I build a few years ago with the AFR 265's I used a Weiand Stealth, with unlike the Air Gap it has the plenum divider cut to within 1/4" of the floor where as the Air Gap is only notched a 1/4 on the top. Very mild porting on a mild combo probably 600 HP+ Aug 4, 2022 · WHICH FACTORY BBC HEAD MAKES THE MOST POWER? PEANUT PORT vs PORTED 049 OVAL vs REC PORT vs AFR 265! Sep 14, 2013 · 502 Gen 6 block (2007 502 HO originally) AFR 265 112 CC oval port aluminum heads. 26 - 143 at Vegas. My best has been 10. These oval port heads come with slightly smaller combustion chambers (107-cc as-cast, 112-cc CNC’d) than the rectangular port heads, and the smaller chamber sizes work well with the stock low-compression pistons used in typical 396/454 AFR 265cc Oval Port Magnum BBC Cylinder Heads 3610-1. 7:1 with a 114cc chamber. 10. NA 517, 1. 90/ 4000lbs RW 11. 625, 259/267@ . PM WOLFPLACE re: the AFRs & advice on how best to accomplish a tight quench & a pump-gas Comp ratio. 36 60'. The intake runners and exhaust ports are partially CNC machined, while the combustion chambers are offered with partial or full CNC machining with a bowl blend; this torque monster is capable of May 21, 2021 · 209. th400 3500 stall 12 bolt 3. Compression ratio should be about 9. 5" Exhaust pushrod (roughly). I leave both of them in Closed Loop at idle and seems to work fine. That was with a . 5-1 496/AFR 305's/Voodoo 60234 Solid Roller/TH400 4000 Stall/4. Recommended for street, strip, or They can also handle engines with displacements up to 468 cubic inches. Part Number: AFR-3610-1. 5 and 11 to 1 CR. 69 Chevelle SS 10. Now these are stock untouched GM heads --- because there are a few guys on here who can make the old GM head flow very well - so stock head is what we are talking about. PLUG 274-AFR 402, 427, 454, Bare Cylinder Head Style, Aluminum. A junkyard stock cast piston 454, dingleberry honed, pro comp 320 head, pro comp intake, pro comp rockers, and they re-used the stock bearings and timing chain. 1 compression, Performer RPM air gap with a AED 950, 1 inch open spacer. This will be a 100% street car; 3. Jan 13, 2012 · I'm thinking the 265's would angle mill down to the low 90's too. When the car is down the exhaust touches the same time as the front crossmember. $561. Apr 30, 2007 · I've got a question on BBC pushrod length. Larger pushrods will not fit without clearancing and is not recommended since some areas are very thin. 00 more. Mar 5, 2013 · For our oval-port big-block build, we chose a set of AFR 300 Magnum heads. 030"H x 1. #2 · Aug 22, 2015. Cylinder Heads, Oval Port Magnum, Aluminum, Assembled, 112cc Combustion Chamber, 265cc Intake, Chevy, Pair. in. #1 · Mar 19, 2014. 56 gears, 37" tires, TH350 with 2500 ATI converter. 050", and the other is 242°/248° @ . It's going in his 1980 chev 3/4 ton 4x4, 4. 25 but there is only one gasket with a 4. Diamond -21 dome pistons. Haha Car is 65 Chevelle approx 3800 lbs. I think I'm somewhere in the middle and could probably squeeze more out of what I have. 195cc Comp, 205cc Comp and 220cc Comp - AFR #6839 or Felpro #1487. 050". Calculate your compression ratio Part #16 Chevy 454 Big Block Performance Build. Pushrods ended up 8" intake, 8. Add To Cart. My initial plan was to go with AFR 265's, but I was just offered a chance to by an unused set of Flotek 290's. :thumbsup: I was headed that way but ran tight on the budget, so I'm running edelbrock heads with a 454 + . claysmithcams. Build that 496 for 10/1 CR, Put those 265's on there with a cam like I currently have (Bullet custom, 297/300, 242/245, . I had him buy a set of AFR 265's and custom hyd roller from Chris. AFR 265cc BBC Oval Port Cylinder Heads Hydraulic Roller Springs - Air Flow Research 3610 - TREperformance. Mar 25, 2015 · Looking at afr 265 CNC angle milled to 97cc chamber (block is already machine notched for bigger valves) May have to flycut pistons. Your camshaft choice & your C. Piston head volume is supposedly 6cc. Chad Harris. Use the links located below to view the instruction sheet for the product you are installing. Supplying the air is an Edelbrock Performer RPM Air-Gap intake manifold fed by a Holley 950 Ultra HP 4150-series carburetor. com. . 030". One cam is 261°/265° @ . 11 12 Bolt Dec 23, 2023 · Best Hydraulic Roller Cam for 496 with AFR 265s. 050 . So with the AFR there is not hype, the head works and works very well. AFR Big Block Chevy 265cc Oval Port Magnum Aluminum Cylinder Heads. In the process of building a 496 with AFR 265 heads and a Performer RPM intake, comes in around 10. Estimated to ship direct from manufacturer on 09/26/24, pending manufacturer availability. 25" bore listed and it is a regular FelPro $20 gasket which doesn't make me feel good quality-wise at only $20! The engine will more than likely be getting a set of the AFR 265 ovals, and is a street car that I am not afraid to run through its paces. 080 over. And I also Jul 14, 2021 · A 454 is not a big engine by todays standards and they have heads that can feed the engine with a small very efficient port. Sep 4, 2012 · The peak airflow offered by the AFR 265 heads (332 cfm) suggests they would support nearly 700 hp on the right application. Feb 27, 2019 · We had excellent luck with the Eddy ovals on 454'sgreat running street cars. So, should something making considerably more power be Buy Speedmaster PCE265. The heads feature a modest port volume of just 265 cc, but these fully CNC-ported castings have the airflow to support healthy output. Joined 454 cubes and a Vic Jnr peaked HP at 5800, so I Apr 9, 2024 · AFR 265 vs. 220cc Comp - AFR #6812 or Felpro #1262R. Oct 2, 2008 · Test 2: Airflow Research 265 The AFR 265 heads didnt produce the highest peak power and torque numbers of the test because of peak flow numbers. Mar 18, 2011 · I have a 9. Timing starts at 1050 and is all in at 3000 RPM. 725" Max lift (Pair) $2,773. 377cc BBC Rectangle Port Cylinder Head. The current pistons that are in the block are Part # 1448HC that are . He's approx $2500 disappointed but excited. Nov 5, 2021 · Heads are designed for 3/8" pushrods. Jun 14, 2011 · 1970 Chevelle, 489, Lunati solid 292/301, . In measuring the pushrod length this evening I came across something weird. A ported set of 049s with 2. I have both of mine set at 14:1 AFR for idle. Then on my MJ engine, AFR265 V2 heads, Mark IV zero decked block, Isky . About to install the AFR 265 Heads on this Big Block Chevy 454 build an Dec 11, 2009 · I am surprised that AFR has not put some test mules to work from a third party to give real world results, like the Eliminator heads were put through. 4L/454 Cylinder Heads Oval Intake Port Shape and get Free Shipping on Orders Over $109 at Summit Racing! AFR-3610-1. Also the headman has the ball and socket flange so there is no gasket to blow out. - Exhaust Port Dimension: 1. 65@125mph 406 with home ported Dart 215 heads. Roller rockers. 49@119mph. RPM air gap intake. The AFR265 flows 323 Cfm so it will support 665HP. Exhaust: 165cc Street and 185cc Street - AFR #6837 or Felpro #1415. 25 stroke scat H beam rods 6. Plan to try both the vic jr and larger carb over time. 310 Dart Big M - 0 deck. 050 is 232 - 232 Valve lift is . But it seems for a couple of more buck you could get into those AFR 265'slike for only ~200. AFR offers two versions of oval port heads: 265-cc as-cast intake runners or CNC ported with 290-cc runners. Specifications: - Material: A356 Aluminum. 11 Chevy 12 bolt Save Share Like AFR Heads, 3610-1 BBC AFR 265 Oval Port Heads, 112cc, Hydraulic Roller Springs. 578" lift cam, I had a Scorpion rocker issue. 67 Chevelle SS. I'm curious who has the fastest NA pump gas (non-e85) 454-498 cid car with afr265 heads. 1 2 3-SS454-· Registered. I. Actually I would be at 10. Don’t really want to tear into the bottom end from a time and money standpoint, was thinking of a set of AFR 265’s (109 cc) and a thin head gasket to get it up to 9::1 or so. Jul 6, 2014 · 72BBMonte. Sep 17, 2010 · PS, 230 ish cam will choke that 496, regardless of what heads you use. Then they threw nitrous at it to get 736 hp for 2500 bucks. 620"/. Jan 18, 2018 · AFR’s 265cc Magnum heads have an oval-port design, and feature partially CNC-ported chambers, intake, and exhaust ports. 55 gears, 3000 ATI stall, 28" tires I just got the heads on, and am working on tuning the carb, but I've been watching my distributor gear because when I took it out from the head change, It had an odd wear pattern. List price 185cc Street, 195cc Comp and 205cc Comp - AFR #6832 or Felpro #1262. Mfg Performance Parts. As always our phone techs are available from 7am-5pm PST to answer any questions you Jun 10, 2008 · The Hedmans fit best of all 3. 11 Chevy 12 bolt Save Share Like Nov 28, 2005 · How would a 265 head fair on a 10. 41 $2,888. We were very pleased. $2,888. 11 12 Bolt 227cc SBC LT4 Race Cylinder Head. Horsepower engineers world class camshafts and custom cams. In the end the owner is gonna be way happier , over 600 for sure I would think . 75 mph 1. afr-3620 AFR Heads, 3620 BBC AFR 265 Oval Port Heads, 109cc, Solid Roller Springs AFR, BB Chevy, Aluminum Heads, Intake Runner 265cc, Combustion Chamber 109cc, 2. This can be a big bonus for good valvetrain Feb 29, 2016 · AFR 265 and 1 3/4" headers. Installation Instructions for AFR Heads. It has a Comp Cams Hydraulic Roller with Crane Roller Lifters. That's where it seemed happiest and made the most steady vacuum of about 7-8 inHg. Nov 12, 2002 · 1970 Chevelle, 489, Lunati solid 292/301, . 120" thick-wall pushrods. maybe even 8000. 190 intake and 1. AFR, BB Chevy, Aluminum Heads, Intake Runner 265cc, Combustion Chamber 112cc, 2. May 16, 2010 · It's a Gen VI 454 and I'm planning on taking it to just over 6k. works great w/them. I agree with Davey and Billy. 72 Monte Carlo (3865 lb Street/sStrip Orange Monster) 6. #10 · Jul 7, 2014. AFR recommends the use of . As indicated by the name, the oval-port offerings from Airflow Research featured 300cc intake ports combined with 123cc Jul 19, 2011 · 540, gen 5 block bore to 4. 650, 111LSA/107ICL). 600 lift) than the AFRs. Find CHEVROLET 6. 15K views 2 years ago. BBC 454 to 470 CID with AFR 265 or 290 Oval Port heads to max of 6200 rpm. We both came up with this combination, a . 650/. Should the heads need milling, no one is more capable than Mike. Race rites are 119cc and would work perfect but the afr's are so much better on the exhaust side . Brand New. This budget friendly head is perfect for your 509 to 540 Cubic Inch operating below 6500 RPM. Sep 28, 2010 · The new AFR 290 CNC ported head was tested on the 496 today. 1047 Fits Chevy BBC 454 Gen 5 Polished 2 Piece Removable Front Aluminum Timing Chain Cover at Walmart. *69 SS 502 EFI /224-228* HR/9. 8:1 Compression. May need 1 range hotter for street cruising. eu kf zt lz bn wk ig cd yr wt