green_monte

i already have the extra thick gaskets think it is 0,315. if it was the rockers hitting the cover wouldn't it sound loud all the time? when i drive the car so the engine is under load the sound is VERY loud.

hi look at this link and say what you think of this sound i have run the engine whitout any belts, adjusted the valves and changed the hedder gaskets but nothing helps. the engine is brand new have only about 150 miles on it when the sound started. the sound follows the rpm and is only there when its warm. can it be a lifter problem? the cam is a zz502 roller cam with morel lifters.

go with a hyd roller cam, even with a very mild one you can make very good power. my 468 with only 9.0 cr, zz502 cam, edelbrock rpm heads, rpm intake and holley 750 carb makes 470hp.

I know the compression is a bit low. maybe i will mill the heads or change them to the 100cc in the future. or shoud i change pistons?

do you think this will be a good street combo and will it make 450 hp? 2 bolted mark IV 454 block bored 060 and zero decked cast oem crank Scat pro stock I beam rods SRP flattop pistons (9.0 in comp with zero decked block and my chamber size) Clevite bearings Feelpro gasket set Stock damper Scat flexplate A set of rebuild Edelbrock ovals with beehives 110 cc ZZ 502 hyd roller camshaft 050 224 in / 234 out .527 intake / .544 exhaust Morel street series lifters Lunati stamped steel rockers Edelbrock RPM Airgap intake Holley 3310 4150 750 vac carb Summit 110 gph fuelpump Rebuild GM HEI distributor