400 block 4.375 bore 4.150 stroke. 500 c.i. Pistons are JE flat tops 1.365 c.h., Rods are Manley H beams 6.535 long. Callies crankshaft 4.150 stroke.
Heads are B1 originals. Jesel indivigual shaft rockers, PSI valve springs, 2.300 in 1.78 ex valves. 62 cc combustion chambers, 13.5 compression.
B1 intake with 1050 dominator on gas..
Cam is 311 / 314 @ .020 280 / 283 @ .050, .772 / .759 lift with 1.7 in 1.65 ex rockers.