Speed Pro Speed Pro Piston Forged 4.070" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.5 cc 35451CXSRD Large square boot-6 1/2 "

Large square boot-6 1/2 " x 7 1 /2 " boot plate replacement for 3- or 4-speed Eliminator Shifter

1965-1973 Chevrolet Impala

1999-2010 Ford F-150

and Nomex zippers for the best possible protection

622 in Stroke

Speed Pro Speed Pro Piston Forged 4.070" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.5 cc 35451CXSRD Large square boot-6 1/2 "Fully updated skirt profiles Exclusive DUROSHIELD skirt coating. DUROSHIELD provides scuff resistance, reduced bore clearances and enhanced ring sealing. SPEED PRO POWERFORGED pistons are built to stringent specifications with a precision CNC machined dome and skirts and microfinished ring grooves. The manufacturing process ensures that piston weights within a boxed set will not vary more than 4 grams and that skirt sizes are matched to within 0.