Speed Pro Speed Pro Piston Forged 4.150" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.7 cc Thermostat Housing Spacer Guard fastens to the half

Guard fastens to the half box mount (not the box) by drilling and bolting or riveting and is held in place with safety wire or a wire tie

and stainless steel ¼"_x009d_-20 "flying magnet"_x009d_ screw w/ high-temp

GMP Performance V8

090 tig welded aluminum

Chrome Plated Shaft

Speed Pro Speed Pro Piston Forged 4.150" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.7 cc Thermostat Housing Spacer Guard fastens to the halfFully 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.