Seller notes

REBUILDER'S CHOICE PISTONSThis item is for eight (8) .040 over bore Rebuilder's Choice pistons and a cast piston ring set (Hastings/MAHLE) for 1967-1969 Pontiac 428ci V-8 engines. P/N (8) PST2257T-040 + 644-040. Feel free to message us with any fitment questions. These pistons are manufactured to meet or exceed O.E.M. specifications.PISTON SPECIFICATIONSBore: 4.160 in. (at .040 bore)Stroke: StockPiston Top Style: Dished with 4-valve reliefsCompression Height: 1.575 in.Piston Material: AluminumWr...

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