Speed Pro Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 16.0 cc - Coated Skirt 430-01-05 setting valve lash or when

setting valve lash or when degreeing the harmonic balancer

These carburetors feature venturi diameters of 1-7/16 for the primarys and 1-9/16 for the secondarys

Ford Powerstroke 2008-10

Crank trigger

2013-2015 Buick Encore

Speed Pro Hypereutectic Piston 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves Minus 16.0 cc - Coated Skirt 430-01-05 setting valve lash or whenSophisticated "barrel" profiles help optimize oil wedge between skirt and wall. Piston skirts protected by next gen DUROSHIELD coating. TAC ring groove geometry Weight matched to + 2 grams. Machined valve reliefs and circlip grooves; LR 63 lock rings for floated applicationsFrom pistons to engine bearing components, Speed Pro offers an array of performance engine parts. You can rely on Speed Pro for industry leading performance engine technologies,