NEW TRW H603-060 Hypereutectic BBC STROKER PISTONS. Pistons are for a +.060 454 block with 4.250 stroker crank and 6.135 connecting rods. This gets you a 496 inch big block chevy. THESE ARE NOT THE INFERIOR SPEED PRO DOME-TOP THAT ARE CURRENTLY MANUFACTURED OVERSEAS AND OF LESSER QUALITY: THESE ARE THE ORIGINAL MANUFACTURED BT TRW (PRE-FEDERAL MOGUL).

100% MADE IN AMERICA OF QUALITY ALUMINUM AND AMERICAN STEEL WRIST PINS. SEE LAST PICTURE FOR THE USA MADE. AUCTION IS FOR 8 PISTONS WITH PINS, AND RETAINER CLIPS, NO BOX.

TRW Pistons - Special Combo Pistons.

COMP RATIO CHART.

100.9 106.9 109.4 116.9 119 124

12.02 11.17 10.92 10.25 10.07 9.69