Speed Pro Speed Pro Piston Forged 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.1 cc 2010204 9-1/2" long by 10-1/2" wide

9-1/2" long by 10-1/2" wide sump and an 7 qt system capacity

0 to 6 in Lift

Ultra Black

This special combination creates high-strength gear teeth that are less prone to wear even with high-volumn oil pumps

w/ Composite Nut-Ring Installed

Speed Pro Speed Pro Piston Forged 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.1 cc 2010204 9-1/2" long by 10-1/2" wideFully 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.