2218-3905 307 Small Block Chevy FX Series +4cc Dome Top SBC 23 Degree Forged Piston Set 3.905 inch bore Pin Dia.: 0.927" Comp Height: 1.675" Bore Size 4125 in 104690 mm 005 will do

005 will do

Approx Comp Ratio: 58cc-10

This part # is for a replacement single cylinder ring set

1) Single SX series replacement piston with wrist pin and pin locs

Perfect for Mild Street or Extreme Power Adder Applications 8 CYLINDER SET

2218-3905 307 Small Block Chevy FX Series +4cc Dome Top SBC 23 Degree Forged Piston Set 3.905 inch bore Pin Dia.: 0.927" Comp Height: 1.675" Bore Size 4125 in 104690 mm 005 will do311 Small Block Chevy, FX, Comp Height: 1. 675, +4cc Dome Top, PIN: . 927", Full Floating or Press Fit, Ring Groove: 1. 2 1. 2 3MM, Stroke: 3. 250", ROD: 5. 7, Approx Comp Ratio: 58cc 11. 31, 64cc 10. 39, 70cc 9. 62 *