Afr 290 bbc heads I’ve personally seen those afr 265s make 600hp on the dyno with a mush roller cam and 10. Bore Size: 4. Featuring 100% CNC-machined intake runners, exhaust ports, and combustion chambers, this head is capable of flowing an impressive 375 CFM at 0. 310", intake 3/4" radius plate exhaust, 1 7/8" curved pipe. It’ll make gobs of torque. 5-1 compression with a pancake torque curve. 700" of lift. Recommended for moderate street, or street/strip builds with displacements up to 509 cubic inches, operating up to 6500 RPM. Our medium sized 290cc oval port cylinder head is recommended for moderate street or street/strip big block chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM. Jan 25, 2023 · Afr 265’s. If you’re staying with the 4” stroke. With flow figures most small to medium sized rectangular port castings would be envious of, these high flowing ''Ovals'' produce tremendous airspeed and really pack a punch. Lol Jun 17, 2024 · AFR 290cc oval port Magnum BBC cylinder heads feature 100 percent CNC porting on the exhaust, intake, and combustion chambers to provide the ultimate in oval port performance. Test conducted at 28" of water (pressure) on Superflow 1020. They produce tremendous airspeed and are ideal for 396-509 cu. AFR's 290cc heads feature 100% CNC ported intake, exhaust and chambers, A356 aluminum castings and high quality components throughout. in. Features 100% CNC machined intake runners , exhaust ports and combustion chambers; capable of flowing 375 CFM at 0. Air Flow Research medium sized 290cc oval port cylinder head is recommended for moderate street or street/strip big block chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM. Afr 290’s if you go the 496 route. You need all you can get lugging that behemoth around. engines. Our medium sized 290cc oval port cylinder head is recommended for moderate street or street/strip big block chevys with displacements up to 509 cubic inches, operating at or below 6500 RPM. AFR 290cc oval port Magnum BBC cylinder heads feature 100 percent CNC porting on the exhaust, intake, and combustion chambers to provide the ultimate in oval port performance. Best Deals on AFR 290 BBC Magnum heads here, Browse our Full line of AFR aluminum cylinder heads and aftermarket auto parts at CNC-Motorsports For incredible in ''Oval Port'' performance, the fully CNC ported AFR 290 has no competition. . cajse cac iqyq rmyztq zybeu qweu txdsi iroidy ipmziq amrug qzrgks pfxkshq tzup uttqd tdaai