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 All BBK Power Plus throttle

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

Smooth top breather

2005-Up Mustang

Includes a high flow billet aluminum and back anodized Lightning 45 bottle valve

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 All BBK Power Plus throttleFully 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.