Speed Pro Speed Pro Piston Forged 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.4 cc BR10123 Stereo style connector and pre-pinned

Stereo style connector and pre-pinned ECU wire (to J1-A15) for easy plug and play installation

2017-2020 Ford F-450 Super Duty Crew Cab PickupVehicle Applications: 2015-2023 Ford F-150 King Ranch SuperCrew Cab Pickup

12 mm Studs

375″ x 3

1968-1974 GMC G25/G2500 Van

Speed Pro Speed Pro Piston Forged 4.040" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 5.4 cc BR10123 Stereo style connector and pre-pinnedFully 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.