HP/TQ numbers are mostly based on Comp Cams Camquest software, but should be fairly close, might be hoping a bit on the numbers, but should be about 400 HP and 500 TQ, which is pretty good for a street cruiser i think, without getting too radical since i do a bit of highway/interstate driving. changing the intake and increasing the carb size plus running larger headers would definitely get it to well over 400 (their estimation is around 430-440 HP), not to mention running a little bit taller pistons would really get you going (resulting in probably having to use premium or ultimate fuel).
it's a '76 HP 440 block
cast crank cut -.020
bored +.030
pistons are 1.991 CH (speed pro L2266F pre-70 design) yields compression of 8.8:1 with .039 gasket, 9.1:1 with .020 steel gasket (undecided on this, in order to use 89 fuel)
346 heads milled 86 CC combustion chamber, 3 angle 2.14/1.81 valves, bronze guides, hardened seats, HD springs good to .509" lift
Comp XE268 cam
Comp Magnum double roller timing set
Comp High Energy pushrods - 9.315"
milodon windage tray
zinc-plated 7qt oil pan
Melling HV oil pump
'69 HP intake with 1" open spacer
Holley 650 Double Pumper
Hedman 1.75" primary, 3" collector headers
Summit 2.5" dual exhaust
Procomp HEI distributor
Accel 12V coil, plugs, wires
so as you can see, almost a basic stock rebuild to pre-emissions HP specs. i can't wait to see what it drives like, as i put the info in from the stock specs, and it's estimation is about 300 HP, and actually it ran pretty well in that trim, so now it should be quite a bit more powerful, while not over-doing it
