Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 1.5 cc AA0710AG3R54 3/4 in Head

3/4 in Head

this flat two-piece adjustable guide plate set is designed for Chevrolet 265-400 Small Block and Ford 289-351W engines with 7/16" studs and 5/16" pushrods

Adjustable

ever since the company's inception

With the expansion of our ignition product

Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 1.5 cc AA0710AG3R54 3/4 in HeadFully 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.