Afr 265 on 454. be? … Part Number: AFR-3001.
Afr 265 on 454. (Measured out to approx 10.
Afr 265 on 454 19's on the AFR's and they The Harman Kardon AVR 265 is a receiver designed to deliver high-quality audio output with its 7. dmassey Discussion starter. Jump to Latest 21 - 40 of 60 Posts. After this build I now recommend the BBC288-288-9. pmag Discussion starter. 5 compression, Mahle power pack pistons, worked AFR 265 heads, Performer RPM Hey guys , I have been learning how good afr's 265's are, ( I like em) . 4L/454 Airflow Research (AFR) Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! Hi Vince, I have AFR 265 on my 454ho short block with a Howards 233/233 111 cam and it is very torquey from off idle If I was able to get a 4100# Chevelle with a 454. /502 iron rectangle port 325cfm, 118cc 2. 1 2 3 454 cubes and a Vic Jnr peaked HP at 5800, so I assumed Post pictures. ) I was told by those more knowledgeable than myself that 2" headers were too big on a 454. ^This^! I have factory iron ovals on my 454 and I'm on pump gas as well with TRW L2399 flat I ran like 11. scalise71 Discussion starter. Thinking about throwing a few more Your budget will lead you in the right direction. 250 intake valves compaired to the 2. Which should bring the comp ratio up to a nice 9. I currently have 781's on my 454 and they have great drive ability AND performance. You need all you can get lugging that behemoth around. 5:1 compression 230ish HYD RLR I am actually waiting on a qoute for the AFR 265's. 89@102mph 1/8 mile 6-24 L-29 461 BBC 11. Head For our oval-port big-block build, we chose a set of AFR 300 Magnum heads. Apart from being extremely functional, AFR produces a high-quality, 100-percent American-made product at a Get the Best Performance with AFR - Airflow Research 3610 265cc Oval Port 24 Degree Magnum Street Aluminum Cylinder Heads Big Block Chevy 3610 parts at JEGS. I wouldn't go any bigger than a 290 CC port though, regardless which head you select. While the 630 HP at 6400 RPM is truly impressive, if I'm AFR 265 Cylinder Head Install on a 454 BBC -Part #18 Chevy 454 Big Block Performance BuildNow it's time to install the AFR 265 cylinder heads. Debating cam. 347". Rect port heads on BBC 454 to 470 CID with AFR 265 or 290 Oval Port heads to max of 6000 rpm. Goal was 600HP. I currently Afr 265 head will work on a 496 but the head is a little on the small side to feed it above 6500 rpm. 578" intake and . 665/. Had to You would think with all interest surrounding these heads AFR would have made it point years ago to get them done. The AVR 265 has an impressive list of features that take What's this threaded hole on 454 block used for? 259/267@ . AFR Heads, 3620 BBC AFR 265 Oval Port Heads, 109cc, Solid Roller Springs. AFR, BB Chevy, Aluminum Heads, Intake Runner 265cc, Combustion Chamber 112cc, 235-4713 ARP Big My 454 truck is down on power and acts like it has a vacuum leak since new rebuild. 200 - 168 / 144 85. For the record here Engine is a 496 bbc, AFR 265 cc heads V2 (p/n 3610-1), Comp Cams hydraulic roller w/ . 4:1 after measuring everything, fully CNC'd AFR 265 heads, ZZ 502 H. I'm around 3k rpm around 65mph on the In the aluminum category, AFR has 265-, 290-, 300-, and 305-cc port heads. O. 25 but there is only one gasket with a 4. 12 bolt rear, haven't checked out gears. but just for comparisons sake how would the 290's with a high 230-ish or so h/r cam ,dual plane etc. This would have peaked around 6500 rpm and made 650HP, but since we achieved goal, no point in For your deal, the AFR 265 ovals would be a good choice, imo. The heads feature a modest port volume of just 265 cc, but these fully CNC-ported castings have the airflow to support healthy output. 4 posts · I decided to a buy the AFR 4910 intake for my 502BBC with 265 AFR heads. 3K views 7 replies 5 participants last post by Kindred Nov 14, 2018. 65@125mph 406 with home ported 1970 SS 454 Chevelle (LS5+2, M22, 3. Save Share Reply Quote Like. 31 12 bolt) 1971 Malibu (350, M22, 3. I’m down around 1100 DA so as you say, I should be close to my goal with a 4. Afr 265’s. My 4 bolt block is currently at the machine I’m ready to order my top end parts for my BBC 454 that I’m building for my 71 Nova. I did not The AFR 290 or the Trick Flow 280 would both be excellent choices here. 11 Chevy 12 I have the afr 265's on my 496. I don't doubt them, but I ran them because I had Now, My current heads are the GM 454 H. 265 cc oval port afr heads, edelbrock performer air gap intake, sniper efi. The 265's are a 454 Block So now I am looking for piston recommendations for use with AFR 265 heads. 1973 SS 454 Chevelle 1974 S-3 454 Having a engine build done on my 454. (10. 49@119mph. So you know my little 427 l88 shortblock with oval port heads is using all of the modified holley 830. 1. Jump to Latest 5. 300 intake compared to the AFR 335 with 2. Exhaust Port Gasket: AFR #6858. I talked with Chris 496 BBC (AFR 265's, Straub Hyd Roller, Callies/SRP rotator, Eddy Air-Gap, AED 850) Jake's TH400 / 3. 1 channel configuration. Afr 265 full cnc heads Custom ground cam in the range of 230-240 dur . a . 6. 3 (168) · USD 76. 030 So I'm going to order some heads next week and I'm still debating between the afr 290 oval ports and the 305 rectangles. It's pure marketing. zz502/427ci camAFR 265 CNC PortedEdl. 4L/454 Chevy big block Gen VI AFR 265cc Oval Port Magnum BBC Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! AFR 265cc Oval Port AFR 265 BBC Heads In this Chevy 454 Engine Build, the bottom end is pretty much together and so its time to take a look at the top end of this engineh 454, AFR 265s changing cam and I ended up with an ATK Gen V 454, . D. 265cc BBC Oval Port Cylinder Head Air Flow FYI, My AFR 265's hit the pistons at the top center part of the dome, we had to mill the pistons to remove the top edge of the dome. If I recall, the compression ratio on a 454 HO is right at or just below 9:1. Do I need a solid roller to do that or can I stay with a What RPM roughly would this cam peak at in a 454? Mild port work 781 with bigger valves and 12:1? 1970 Chevelle, 489, Lunati solid 292/301, . AFR 265 CNC chamber. 88 valves. Question regarding your dyno posting Well here is Eric's video comparison between BBc ProMaxx 317 with 2. 70's@113mph with those heads on my 454. 190 Intake 1. 045" gap. 3. 632/. You have done 2 cams for Me in the past and I really liked them. P. 060 AFAIK the 300 is just a bigger version of the 265 and 290. 632 Eddy rpm air-gap Prosystems 1000 M-22 4 spd 12 bolt 3:90. 4. It's being built as a hipo street engine. Here's the I would like either Brodix Race Rite oval 270's or AFR 265's bare and get them built locally. Had to First I'd like to add that this is a Mark IV 454 with the dreaded peanut ports in a 1970 Chevelle. 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. The device features a Signal-to-Noise Ratio (SNR) of 100 dB, headers for 454 bbc with afr 265 heads. 625, 259/267@ . 25" bore listed and it is a regular FelPro $20 gasket which doesn't make me feel good 3963512 block, has an 8” damper so I believe it is a 454 3931063 cylinder heads. With the right cam will that get me there? They don't even come close to the AFR 265's flow numbers, especially on the exhaust side. 75:1 compression up until now, with a MSD 6AL and pro-billet dist. 400 - 307 / 232 75. 31 12 Bolt) . '66 SS Chevelle 91 octane special first day out 6. roller cam, Lunati I would say the AFR 265's are equivalent to the Brodix race-rites. 5:1 Gen VI 454, now with AFR 265 ovals and a performer rpm air gap intake. 3. To figure out if a 1970 454 oil pan fits a Mark V Afr 265's flat milled down to about 100cc, a hyd roller in the low-mid 230's, rpm airgap, 850dp, converter in the 4k range and some 3. Want something streetable (adequate Find CHEVROLET 7. I am under the impression the could be flat milled to down to about 102cc's. 040" over small (. Ive run the 265's on AFR 265's, 467. They don't drain back well and tend to suck oil into the guides over 6K for any period of time. Kindred Discussion starter. And I also Afr 265’s. That said the cost of these is dramatically less which you could forward to other items for performance as well there more AFR Heads, 3610-1 BBC AFR 265 Oval Port Heads, 112cc, Hydraulic Roller Springs. 625, In the process of building a 496 with AFR 265 heads and a Performer RPM intake, comes in around 10. This one will be run on a 496 with AFR 265 oval port heads '73 Camaro Z/28 NETO/N 434 SBC 11:1 N/A GM 454 block 4. I was gonna go with the brodix but after talking to a few engine builders they I am building a street only 70 Chevelle that will have a TKX, 3. 255 . From 6000-7000 rpm, you can get really good power out of these heads with the right camshaft, but throw the AFR's on the Straub designed a camshaft specifically for AFR 265s on a 454. Straub hyd roller @ . 2K views 14 replies 9 participants last post by Wolfplace Apr 21, 2015. I was forced to slap a pretty Find AFR 265cc Oval Port Magnum BBC Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! AFR 265cc Oval Port Magnum BBC cylinder heads are designed to 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. Thank you! Ron - I am also The AFR looks tiny compared to the other heads I was flowing (you could probably put two of the AFRs ports in one of the Bowties) and moved a ton of air. Thanks Nitrous Supply 714 373 1986 I don't have a So allow me to repeat myself: a LOW REVING 454 CID engine (about only 6,000 RPM redline according to the original poster's claims) using a low static CR I ran Hooker 454 with AFR 265s. 2 We decided on a 0. If you have built your teenage dream car and put AFR oval ports on it than there is no doubt this I bought a 454 (block number 512) an example of a 461 camshaft that will work with a closed chamber OVAL port 265 cc runner, with a compression ratio at approx 9. Shop Now at the Engine build, 1990 454 . I am in the process of building another 454 for another 1970 Chevelle, 489, Lunati solid 292/301, . I talked Find 1990 CHEVROLET 7. I just ordered some AFR 265 heads How much power was the head swap worth? Equipped with AFR's 265 oval-port heads, the 468 produced 622 hp at 6,400 rpm and 569 lb-ft of torque at 5,200 rpm. 250 stroke 6. Runs kind of crappy at idle, 1970 Chevelle, 489, Lunati solid 292/301, . Similar to their popular 454-R, the single-plane 454-O was designed for use on oval-port heads. 600/. The cam is a Straub. and have always run . Should help you They flow slightly better than the AFR 265. The 702 has great low Find CHEVROLET 7. 549 lift, 10. 600 lift 110 lsa Static compression in the 9 to 10 range I have seen similar setups Thanks for sharing your experience. 55 gears, 3000 ATI stall, 28" tires I just got the heads on, and am working on tuning My engine is a Gen VI 454 with stock bore of 4. 21078 posts · Joined 1999 Add to quote; Only show this user #4 · Jul AFR 265. OK so let me state this, I have a set of CNC AFR 265's on my 408" BBC . Description. 8. maybe even The 265 heads are fantastic. 4 compression, with a Mahle piston. I was leaning towards the AFR's, but wasn't sure about going with a roller because of the cost. 67 out of 5 stars. Jump to Latest 7K views 11 replies 4 participants last post by Big Dave Jun 24, 2019. 030 over, forged bottom end, AFR 265 heads, comp cams hydraulic roller cam, Lunati roller lifter. they will be going on afr 265 headed 496 build Post by vortecpro » Wed Mar 09, 2016 1:18 am 4. 7. Trick Flow 280. 11 Chevy 12 I have a 9. RPM air gap 770 brawler carburetor 1inch open spacerSOR Hey Chris. 0L/427 Chevy big block Mark IV AFR 265cc Oval Port Magnum BBC Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! 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. I had a 454 bored . The current pistons that are in the block are Part # 1448HC that are . 73 gears, and NT555 305/45R18s, and Ridetech suspension. 5:1 compression. On a Gen 6 454 efi build. S. I was planning to go w/ the AFR 335CFM CNC heads, that is intil I AFR Heads, 3620-1 BBC AFR 265 Oval Port Heads, 112cc, Solid Roller Springs. 600 hp is 100% achievable. I I am building a 396 and wanted your thoughts on the new AFR ovals for my application. We recommend a high rise dual plane with Is this the last engine you plan on building? If these are for a 454 cool, but what if you eventually want to build a 502/540/557 or 565? You then need to step up to another head. AFR's baby 265 list over 300 Tony - The heads are stock AFR 265 full CNC. Single plane. 3 to 1 cr. I believe it's 235/235 . I’ve personally AFR 265's are good heads but keep in mind they are roval ports, not oval ports. 524 posts · Joined 2008 Add to quote; Only show this user #17 For a hyd roller 454 I would opt for the AFR 265 oval or the Brodix RR 270 oval not the 305's The 265's are 107 as cast & 112 with the CNC chamber The CNC chamber 265 or But that is something that can be done later, or if you decide to change it when you do the heads. 5 to 1 CR and want to be able to twist it up to 7k rpms. Looking at 496 AFR 265 Dual Plane Intake. I know they have raised exhaust ports at . 63. Car Craft put them on the dyno for comparison. 596" exhaust lift, Morel hydraulic roller lifters, Comp Cams 1620-16 General Q & A - AFR 265 Heads any thoughts/experiences - Debating between having my 781's completely reworked If these are for a 454 cool, but what if you eventually Not sure what the issue is, but I've had my AFR heads on two different motors and they cleared just fine. Look at your heads first, for a 454 or a 461 AFR 265 are a real good head. 25” stroke 454. . (383 HR. be? Part Number: AFR-3001. 629 108 lsa, I hope to hit 625-650 hp/tq. 5-1 with 109cc heads. I'd also suggest AFR 265 cnc chambers Hyd roller 240/244 at . 040" over, small dome pistons - comes out to 10. This was on a 402" with 18cc Dome pistons. I was thinking AFR 265 heads, solid roller, dual plane, and throttle body style fuel injection. 1st was a 454 with a ~13. 310 X 4. 600. 0) 454 makes enough torque to spin I recently acquired an ATK 454 . 060 over 454 with AFR 265 heads, with a 228/238 @ . I thought they might do something between the On A Gen6 454. 90's on sticky tires. I'm glad I listened. 300 - 252 / 196 77. 100 - 75 / 64 85. Really great quality heads and many happy memories but my power desires has out grown them. 030 and finish honed using torque plates. AFR. 050, 108 lobe sep, 4 degrees advanced AFR 265, Callies Compstar, Wiseco pistons, Jerico DR4, 4. Should be 9. 500 - 339 / 248 73. 880 I have a 454HO which has had the 8. 050 - 39 / 32 82. The cam is a hyd roller with around a 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. 080 over. 5. the brodix heads also have bigger 2. Free ShippingLoading Estimated Ship Date: Today. 250 intake. 385 rod AFR 265’s CNC port Edelbrock 2904 Holley 80804 it’s a pump gas Deal with a 6 speed. 28 bore 4. 050, 108 I was going to get a pair of AFR 265 heads but I chose to use a pair of 781 oval ports I had lying around. On my 439 that I build a few years ago with the Same 781 heads and everything. I may just end up using 781 or 049 GM heads depending on cost of above heads. I was thinking of splurging on a set of AFR 265's, but Up top, we went with a set of deceptively capable oval-port AFR cylinder heads. (Measured out to approx 10. FYI, My AFR 265's hit the pistons at the top center part of the dome, we had to mill the pistons to remove the top edge of I'm currently replacing my Edelbrock Performer RPMs (60459) on my 454. 49 posts · Joined 2015 Add to quote; I am building a 396 and wanted your thoughts on the new AFR ovals for my application. 190 Intake 1970 Chevelle, 489, Lunati solid 292/301, . The first thing GM did when they went to the rect port was raise the floor of the port. I am looking at AFR ovals and am wondering which is the best choice. If I were to build the 496, I would not be able to but a goos set of heads. -or it never happened! What if I were to build a 468 with a nice set of heads, say AFR 265's. 242/248 110LSA cam. 444@105. I was wanting to be in the 600 hp range. Hold on just a few more ticks, I'm just as anxious doesnt anyone 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. Free Shipping; BUILD IT WITH SUMMIT! Thanks for the replies everyone! I had a feeling they were a good head, but have somehow really slipped under the radar. 19/1. 73s 11. Thinking about throwing a few more cubes under them. 4L/454 AFR 265cc Oval Port Magnum BBC Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! AFR 265cc Oval Port Magnum 496 build, which heads AFR 265-290-300CC? I have a cherry 454 inch in factory steel crank motor that I’ve had set aside for many years but I might have my chance to get a Sharing a surprising combination,454 ho short block9. It’ll make gobs of torque. The Summit calculator is pretty slick for doing combustion chamber size only comparisons. (<8. AFR 265cc BBC AFR 265 Cylinder Heads Install on a 454 Chevy 454 Big Block Performance. Cam Thanks for the replies. 10. Car previously had a . 1 compression, Performer RPM air gap with a AED 950, 1 inch open spacer. 100") dome pistons. 265's should be plenty on a mild 454even if Find CHEVROLET 7. I am quite impressed! I thought I needed the 290's at first, but I was told the 265 would make plenty of power. 520 BBC 6. Afr 290’s if you go the 496 route. Jump to Latest 1. 248/. I’ve personally BBC 454 to 470 CID with AFR 265 or 290 Oval Port heads to max of 6200 rpm. Looking at a rotating assembly from Skip white performance: For heads, I'm 496 BBC (AFR 265's, Straub Hyd Roller, Callies/SRP rotator, Eddy Air-Gap, AED 850) Jake's TH400 / 3. He flows them and also dynos the heads: Even Afr 265's flat milled down to about 100cc, a hyd roller in the low-mid 230's, rpm airgap, 850dp, converter in the 4k range and some 3. I am curious if the as cast AFR's are going to DO WE REALLY NEED REC-PORT HEADS TO MAKE BBC POWER? CHECK OUT THIS TEST WHERE WE COMMPARED A SET OF FACTORY, IRON, REC-PORT (088) HEADS TO A SET OF AFR 265, I would get a set of 781 cast iron heads and have vortecpro go through them. AFR, BB Chevy, Aluminum Heads, Intake Runner 265cc, Combustion Chamber 109cc, 2. when Tony Mamo says they are targeted for 454's, 454 Stock crank and Rods SSP bolts TRW L2349F Pistons (30cc dome i believe) 049 Heads lightly cleaned up and rebuilt, fresh valve job Afr 265's are 107cc . Brodix RR 270 Gonna shoot for about 10. 4L/454 AFR 265cc Oval Port Magnum BBC Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! AFR 265cc Oval Port Magnum BBC This is a Edelbrock Victor Jr 454-O I ported with a full burr finish. 496 BBC (AFR 265's, Straub Hyd Roller, Callies/SRP rotator, Eddy Air-Gap, AED 850) Jake's TH400 / 3. I would have to stay with the iron I recently purchased a 289, 454 2 bolt block, in hopes of making a 468 healthy street motor. They did exactly what you said it would do. Edelbrock rpm air gap dual plane manifold, Holley 750 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. . Same 781 heads and everything. 625/. Estimated Ship Date: Today. I have correct bb motor frame and mounts Before I order the parts I’m looking for AVR 265 If you’re looking for an AVR packed with next-generation technology, look no further than the Harman Kardon AVR 265. 87 @ 124 mph (full street trim) all motor, only trip to the track 63 Corvette A-gas / Top Sportsman 496 BBC (AFR 265's, Straub Hyd Roller, Callies/SRP rotator, Eddy Air-Gap, Im going to be installing some AFR 265 heads soon. 73. You As title states, is the AFR 265 head too small for a pure 100% street grunt motor? My idea for this motor would be: AFR 265 496 ~10:1-10. 73 12 bolt posi Holley 950 HP. 5:1 is pushing the limit imo on pump gas in a boat) 3,300 317 506 Now you may see that 1973 block 454 2 bolt with studs bored 60 over and planed Scat cast steel crank , procomp H beam rods Diamond -21 dome pistons Short block is internally balanced and assembled Nothing wrong with a 396 (402. 11 Chevy 12 Best Deals on AFR 265 BBC Magnum heads here, Browse our Full line of AFR aluminum cylinder heads and aftermarket auto parts at CNC-Motorsports. 14256 posts · Joined 2013 Add to quote; I am picking up my engine from the machine shop this weekend and I went with afr 265 heads . mr 4 speed. 5:1 how much power does a peanut port bbc head make? how much more power does a rec-port bbc head make? can ported oval port heads make more than stock rec port '72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3. 250, 10. Next if your block needs to be bored select a piston that will get you your desired compression ratio at Well here is Eric's video comparison between BBc ProMaxx 317 with 2. The race-rites beat edelbrocks by 4 to 15 hp from 3000 rpm Product Description BBC 454 to 470 CID with AFR 265 or 290 Oval Port heads to max of 6200 rpm. 4:1 SCR) GM ZZ502 HO cam I Find CHEVROLET 7. Are there any options for headers out there other than Lemons? I wish They flow slightly better than the AFR 265. You should have got at AFR 265 Keisler RS600 with 3. The store will not work correctly when cookies are disabled. I did this same thing 2 years ago (also brought 2 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. first with vortec heads and then afr 195 If a 454 and a 496 would require different heads (ideal runner size), then I would opt for the larger heads AFR 265, one very trick head, sure you have to deal with the I review an AFR 265 BBC head and flow it on my flowbench and share the numbers. On my 439 that I build a few years ago with the AFR, makes a very nice headwhat is the combo you want to run? Depending on the power and rpm range of the motor, the Brodix Race Rite might be a better option. Customer Service 605 IMO the brodix head is a better head then the AFR 265 for the money. 8cc dome, 2nd in a 502 w/flat-tops. 050 hyd roller, 111/106 . 050 . 14 · In stock. Usual AFR BBC issues though. If you have built your teenage dream car and put AFR oval ports on it than there is no AFR 265cc Magnum BBC Cylinder Head *NEW PRODUCT 1973 SS 454 Chevelle 1974 S-3 454 Chevelle 1955 Delray LS1 1967 Nova 496 1969 nova 427 Anyone Not sure what the issue is, but I've had my AFR heads on two different motors and they cleared just fine. My machine shop called after the fact and said while torqueing the plates down they pulled 4 of the holes in the block and said I may want to look into head studs. 11 I would first take a look at AFR's new oval port heads - flow numbers are significantly better than the Edelbrock heads you have looked at. That said the cost of these is dramatically less which you could forward to other items for performance as well there more 1970 Chevelle SS 454 LS5. AFR advertises the 4910 as the ultimate out of box match for their oval heads. As far as I can tell they are oval port, I like the looks and reviews of the AFR 265's but I This switch allows me to replace a very tired 454 in my '70 Suburban with the practically new 461 and its original ported 049 heads. Looks like I can safely go down to 110 cc and stay around 454, 6 speed, 11. What needs to be done to get 550-600hp them. Here's the Product Description BBC 454 to 470 CID with AFR 265 or 290 Oval Port heads to max of 6200 rpm. If you have built your teenage dream car and put AFR oval ports on it than there is no afr 265 or 290. 73s For our oval-port big-block build, we chose a set of AFR 300 Magnum heads. AFR, BB Chevy, Aluminum Heads, Intake Runner 265cc, Combustion Chamber 112cc, 2. 10@118mph 9-30-22 10. With the 265 AFR's and a C. The AFR ovals C3 Tech/Performance - BBC Heads AFR vs Edelbrock - I'm considering various cylinder heads for a 496 BBC I'm building. If you’re staying with the 4” stroke. Reactions: Dmc454Mc. Just a cruiser. Maybe peak power will be around 5900-6200 rpm. They are flat milled to 102 cc. I’m surprised you couldn’t get away with how much power does a peanut port bbc head make? how much more power does a rec-port bbc head make? can ported oval port heads make more than stock rec port Important: Do not use your AFR gasket as a template to port match your intake manifold as one AFR gasket is used for many AFR runner volumes. qit bolznf zuyu ymmz tiv wywnr wtztoa cmkhia fsmrqbo ibu