These pistons are a 4.350" (.030 over) bore flat top piston which will work in a 440 block with a stock 3.75" stroke and factory length 6.76" rod. Click on the part to see our table with detailed compression ratios. All our platinum pistons use 1/16, 1/16, 3/16 ring pack for less frictional loss, and weight saving, full floating .990 pin size.
These pistons are a 4.360" (.040 over) bore flat top piston which will work in a 440 block with a stock 3.75" stroke and factory length 6.76" rod. Click on the part to see our table with detailed compression ratios. All our platinum pistons use 1/16, 1/16, 3/16 ring pack for less frictional loss, and weight saving, full floating .990 pin size.
These pistons are a 4.375" (.055 over) bore flat top piston which will work in a 440 block with a stock 3.75" stroke and factory length 6.76" rod. Click on the part to see our table with detailed compression ratios. All our platinum pistons use 1/16, 1/16, 3/16 ring pack for less frictional loss, and weight saving, full floating .990 pin size.
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