This Wiseco RED Series piston is forged from 2618 aluminum for Chevy LS engines. It has a 4.185 in. bore and a 1.105 in. compression height with a -20cc dish. RED Series pistons are built for popular domestic V8 platforms used in drag racing, circle track and power adder engines.

Wiseco 70085X185 Piston Features:

• Made for Chevy LS engines
• 4.185 in. bore diameter with a 1.105 in. compression height
• -20cc dish volume
• Sized for a 4.000 in. stroke and 6.125 in. connecting rod length
• Forged from 2618 aluminum alloy with a strutted forging design
• ArmorGlide skirt coating for reduced friction, scuff resistance and quieter operation
• 0.927 in. 5115 Steel floating wrist pin included
• Piston rings included: 1.20 mm top, 1.20 mm second and 3.00 mm oil ring
• Dedicated engine-specific strutted forging for strength-to-weight
• Horizontal slot oiling in the pin bores lubricates the wrist pin and rod small end
• Accumulator groove helps hold a consistent ring seal
• Sold individually