I just had a '74 400 block built, here's the general specs:
stock rotating assembly, balanced
Speedpro .030 over pistons, 10 cc dome (cr about 9.6), floating pins
4X heads, screw-in studs, 3 angle valve job, mild porting
Crane Energizer 272 (for good street manners)
Comp Magnum 1.52 rockers
Melling 60 psi oil pump
With machine work and parts i have about $2k in it. I haven't dyno'd it yet, but I can go sideways from a 20 mph roll. Car is a 1970 Firebird, Turbo 400 w/ 2300-2500 stall converter, 3.73 posi, 295/50's out back.
If you want a bulletproof, mega hp motor, go see Jim (mr p-body) at CVMS. He'll build you the best you can get.
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406, 4X, balanced rotating assy, forged pistons, Crane 272, Torker 2, Street Avenger 770, 3.73 posi disk brakes
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