CP-Carillo Forged Piston Set: 4.005' Bore, 4.000' Stroke, 6.125' Rod Length, 1.110' CH, -27.8cc Dish; Wrist Pins & 1.5/1.5/3.0mm Steel Top/Napier 2nd Ring Set Included

CP Pistons Bullet Series piston and ring kits are value-packed replacements. Offered at an affordable price, these high-quality pistons incorporate everything that has made CP an industry leader—extensive research, computer-designed forgings, tight tolerances, and rigorous quality control. Having Bullet Series pistons means you no longer have to compromise high performance, even on a tight budget. They're manufactured from 2618 forged aluminum alloy for strength and durability.

• Bore (in): 4.005 in.
• Bore (mm): 101.727mmPiston Style: Dish, with two valve reliefs
• Piston Material: Forged aluminum
• Compression Distance (in): 1.110 in.
• Piston Head Volume (cc): +27.80ccWrist
• Pin Style: Press-fit or floating
• Pin Diameter (in): 0.927 in.
• Gapless: No
• File Fit: No
• Top Ring Thickness: 1.5mm
• Top Ring Material: Ductile iron
• Top Ring Facing Material: Plasma-moly
• Second Ring Thickness: 1.5mm
• Second Ring Material: Cast iron
• Second Ring Facing Material: Phosphate coated
• Oil Ring Thickness: 3.0mm
• Oil Ring Tension: Low
• Piston balance 1 gram
• Dual forced pin oilers
• Contact reduction grooves
• Accumulator groove
• Contemporary high performance ring sets
• Forged side relief
• Chromoly wrist pins with wire locks