Afr Ls Heads 5 3

This combination provides excellent horsepower gains while maintaining a strong torque curve.

Afr ls heads 5 3.

For a street car this design means excellent throttle response torque and average power. Compression is 10 2 to 1 higher than the stock 9 9 to 1 so performance should be slightly higher. The edelbrock 79949 e cnc small block chevy gen 3 4 ls cylinder head are designed for 1997 later gen 3 4 ls1 ls2 chevy engines including 4 8l 5 3l 5 7l 6 0l. The afr cathedral port 210cc heads come fully assembled and are perfect for anyone doing a high performance ls swap.

Center bolt cylinder heads. This tech tip is from the full book high performance. Available in runner volumes from 210cc 215cc 230cc and 245cc. Valves chevy small block pair.

Cylinder heads aluminum 195cc intake runner straight plug 2 020 1 600 in. Cathedral port cylinder heads have been mistakenly dismissed by many in ls series circles for being old tech however their thin cross section allows for a high velocity and smaller volume runner design with excellent flow. Afr s mongoose ls1 cathedral port cylinder heads are 100 5 axis cnc ported and made with a356 aluminum. Gm l33 aluminum 5 3 ls v8 engine built by philadelphia racing engines for street race all around high performance use.

With a 185cc intake runner size the heads fall into the larger side of the 302 based street engine offerings while still being large enough to provide an upgrade in a 351 windsor engine. Afr recommends the use of 120 thick wall pushrods. This engine has not been on a dyno however this camshaft combination has been tested in a 5 3l and produced 442 horsepower at 6 200 rpm and 412 lb ft of torque at 5 000 rpm. All heads come with high quality components such as titanium retainers and pac racing springs.

The afr ls3 heads also featured 95 cc exhaust port 69 cc combustion chambers and a 2 165 1 60 valve package. The port and chambers are carefully designed to provide the best combination of high flow capabilities and improved port velocity. Mills flat or angle mills could affect flow numbers and might require a thicker intake gasket. Afr s enforcer small block ford cylinder heads make a great budget friendly alternative to the class leading renegade lineup of cylinder heads.

Stud girdles due to many available factory oem and aftermarket style variations your existing stud girdle may not fit afr heads require afr stud girdles. Tim says the heads are produced from a permanent mold casting. The e cnc cylinder head feature fully cnc d intake ports combustion chambers and exhaust ports for improved air flow.