Speed Pro Speed Pro Piston Forged 4.390" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 22.0 cc RK-R1 2005-Up Mustang

2005-Up Mustang

220" length

All BBK Power Plus throttle bodies offer OEM drive ability but with up to 30% improved airflow for improved horsepower

Manley Sportmaster connecting rods are forged from aircraft quality 4340 steel

Adds a dramatic amount of performance and durability to any vehicle

Speed Pro Speed Pro Piston Forged 4.390" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 22.0 cc RK-R1 2005-Up MustangFully 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.