Reply to "Retard"

George PAdmin.

Yes, 38 degrees sounds about right to this old memory. the exact numbers are dependent upon the fuel & carb tuning, camshaft, etc. Been a long time since I had an 8.0:1 motor on a dyno. Mind you, I always stuffed a different cam in those motors, but nothing too radical.

Flat top pistons, zero decking the block & milling the heads can take the compression ratio into the 9.5:1 range with that motor. A slightly stouter hydraulic cam, better exhaust, big valves & porting for the heads, can get the motor into the 400 bhp range, even with the 4300D carb. The engine maintains excellent drivability.

In the seventies when I was doing this work, most big block equipped cars didn't have 400 bhp.

the cowboy from Hell

8/23/0611:18 AM

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