Speed Pro Speed Pro Piston Forged 4.160" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 10.3 cc Aviation Cable Adapters Ford EcoBoost 4-Cylinder

Ford EcoBoost 4-Cylinder

Weld on reducersPatriot Exhaust products continue to offer the best value for the dollar of any brand in the industry

Use with Narrowed Fuel Tank - Available Separately

5 speed or 2500+ stall

Speed Pro Speed Pro Piston Forged 4.160" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 10.3 cc Aviation Cable Adapters Ford EcoBoost 4-CylinderFully 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.