Originally Posted by MalibuMike
I hav a 454 BBC 4 bolt main #361959,with #336781 heads,a #3883948 manifold intake, a TH400 transmission, and 8.5"posi rearend with 3. 73 gear... I'm looking for suggestions on .060 bore pistons & a cam to maximize the potential of my motor without doing any other modifications besides headers...
Heads will be ~118/120 cc's unless the head decks have been cut to lower chamber displacement. You really will not know until you cc the chambers for yourself.
Using 118, use these low-dome SRP forgings.....
SRP Big Block Chevy Small Dome Profile Pistons 212136 - SummitRacing.com
to make a 10.1:1 static compression ratio
Use a Crane "Saturday Night Special", although you'll need more gear and a 3000+ stall converter.
Crane Hydraulic Flat Tappet Camshafts 134551 - SummitRacing.com
Intake valve closes at 43 degrees ABDC @0.050" tappet lift and makes DCR of 8.505:1. I would shoot for 0.040" to 0.050" squish.
This is just one idea, there are hundreds of ways you could make power with a BBC, including building it 8.0:1 and bolting on a small blower with this same general cam grind.