Speed Pro Speed Pro Piston Forged 4.070" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.5 cc 35451CXSRD DiamondFire plugs create more power

DiamondFire plugs create more power while using less fuel (brake specific fuel consumption) than any other design

and Nomex zippers for the best possible protection

Developed with many of the top race engine builders and race teams around the country

5/8 in Diameter Shaft

2006-2008 Lincoln Town Car

Speed Pro Speed Pro Piston Forged 4.070" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 7.5 cc 35451CXSRD DiamondFire plugs create more powerFully 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.