1971 455 HO engine build photos and specs
McInnis Automotive, Acton MA
.030 overbore, 462 Cubic Inch
455 HO heads, intake, and exhaust manifolds
455 HO 4-bolt mains
10.5:1 forged TRW pistons
455 SD forged rods, bolts, and nuts
Balanced pistons, rods, crank, and rotating assy
ARP head studs...