Speed Pro Speed Pro Piston Forged 4.080" Bore 5/64 x 3/32 x 3/16" Ring Grooves - Minus 10.0 cc Helmet Side Plate Impurities in well water can

Impurities in well water can cause rust and corrosion inside the radiator

GM A-Body 1964-72 / F-Body 1967-69 / X-Body 1968-74

Sierra 1500 HD 2003-2001

10 psi higher pressure over the M365

ARP’s product line contains thousands of part numbers

Speed Pro Speed Pro Piston Forged 4.080" Bore 5/64 x 3/32 x 3/16" Ring Grooves - Minus 10.0 cc Helmet Side Plate Impurities in well water canFully 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.