Check out Chevy Performance Part's 502 crate engines. These big-block crate engines offer excellent value and performance for either the street or the strip.

2012年2月15日 · The GMPP cylinder heads that come with a ZZ502 long block are 290 cc/110 cc oval port heads with 2.25"/1.88" valves (PN 12363390). From my research, it seems that, although the intake port size is on the low end, they would probably do well for a street motor.

Thanks to a combination of high-flow aluminum oval-port cylinder heads with 2.25/1.88-inch valves and a hydraulic roller camshaft designed to support low-rpm torque production, this torque monster tops the 500 lb.-ft. mark by approximately 2,500 rpm and doesn’t dip below it …

This head is used on G.M's 502/502 h.p. crate engine. Large oval port design, 290cc runner volume , Semi Open Combustion Chamber. It also includes high performance valve springs, valve spring caps, keys and valve stem seals. These springs are good for up to .680". Spring pressure closed is 140 lbs. Spring pressure open is 368 lbs.

2011年2月14日 · I have zz502 crate engine in my 69 with a " Big mutha thumpr comp cam (243/257 @.50-.570/.554 lift with a102 centerline), race demon 850 carb and a single plane strip dominator on it. From what I've read, the aluminun heads that come with it …

2005年12月9日 · I know they're 110cc chambers, are aluminum oval ports with stainless valves and I've heard they're made for GM by Eldebrock but that's all I know. What's the flow rating, intake runner length, etc. Does anybody sell these heads as aftermarket?

Like our complete ZZ502/502 Deluxe crate engine, a set of high-flow aluminum oval-port cylinder heads and a hydraulic roller camshaft designed to support low-rpm torque production enable it to hit the 500 lb.-ft. mark by approximately 2,500 rpm and hold it …

2012年2月22日 · My suggestion would be buy a ZZ502 short block. Take it apart and check the clearances and have it line honed, most need it. Then put a set of AFR 290's or 305's on the mill with a camshaft change.

The 502/502 base engine comes with fully assembled cylinder heads, Chevrolet Part Number 12363390. These cylinder heads are aluminum, oval port heads with 110cc combustion chambers, 2.25" stainless steel intake valves, and 1.88" stainless steel exhaust valves. Cylinder Head Installation: Installation is the same as for original equipment ...

2020年3月26日 · 10.65@125mph 406 with home ported Dart 215 heads. Yes, Edelbrock built the heads for GMPP/CPP, they have everything you'll need. Please visit my Garage -- I mean "Showcase." This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread. Write your reply...