Originally Posted by 79 Malibu327
hi guys havent been on in a while good to be back. heres the thing i have a 1978 25th aniv. addition vette thats been down for a while it was my granddads and i am looking into restoring it. the engine that was in it is long since gone. so i have a 350 1 peice rear main seal from a 95 silverado. ive had it bored over .030, im gonna use keith black hyper pistons, eagle SIR 5.7 rods, and stock crankshaft, camshaft is a comp magnum, 280 avd duration, 480 lift on intake and exhaust. cylinder heads dart iron eagles 64 cc combustion chamber 200CC intake runner 2.02 1.60 valves. final compression ratio 10.1:1, performer air gap intake, 750 cfm edelbrock carb, accel HEI, pair of dynomax headers 2 1/2 exhaust with flowmasters, what power output can i excpect from this engine in torque and horsepower, i was hoping around 330-350 hp?
I have a CC XE274 hydraulic flat tappet cam in my 383 'Vette. I believe the cam may be a little much for a +/- 350. Why not go to a 383 while your doing all the other stuff?
The 280 should work just fine with the increased CI.
You are going to buy new rods and pistons, why not stroke it? Eagle steel cranks are not a lot of money.
I have seen a lot of bad reports on various forums, on the KB Hyper pistons.
I'm running Speed Pro Hyper on my 383.