1970 Bore (in) Stroke (in) Top HP*/RPM Top Torque/RPM Compression
Olds 4554.1254.25400/4800510/300010.25
>>Hi-Po370/5200500/360010.50
Buick 4554.3133.90370/4600510/280010.00
>>Hi-Po360/4600510/280010.50
Pontiac 455**4.1524.21370/4600500/310010.25
>>Hi-Po**360/4300500/270010.25