Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.1 cc Antifreeze / Coolant Additive 6 or 8-cylinder enginesDiagnostic Troubleshooting

6 or 8-cylinder enginesDiagnostic Troubleshooting LEDTerminal strips for convenient hookupSupplied with 3000

Competition EFI Flange

5mm Super Conductor Wire

Keeps you comfortable and clean while working

1996-2000 GMC Yukon

Speed Pro Speed Pro Piston Forged 4.030" Bore 5/64 x 5/64 x 3/16" Ring Grooves - Minus 6.1 cc Antifreeze / Coolant Additive 6 or 8-cylinder enginesDiagnostic TroubleshootingFully 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.