2203-4040 327 Small Block Chevy FX Series -13cc Dish Top SBC 23 Degree Forged Piston Set 4.040 inch bore Pin Dia.: 0.927" Comp Height: 1.675" Bore Size 3766 in 95581 mm They are made to order

They are made to order and are NOT RETURNABLE under any circumstances

best engine building practices dictate that pistons should be replaced in matched sets

It can be done after the fact but pin fitting the pistons twice adds on quite a bit more labor

the following points must be understood and considered

You will be required to do whatever it takes to match your other pistons weight

2203-4040 327 Small Block Chevy FX Series -13cc Dish Top SBC 23 Degree Forged Piston Set 4.040 inch bore Pin Dia.: 0.927" Comp Height: 1.675" Bore Size 3766 in 95581 mm They are made to order333 Small Block Chevy, FX, Comp Height: 1. 675, 13cc Dish 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 9. 58, 64cc 8. 99, 70cc 8. 46 *