Seller notes

SPEED PRO PISTONSThis item is for eight (8) .030 over bore Speed Pro hypereutectic, 33cc dome top, coated skirt pistons and moly piston ring set (Hastings/MAHLE) for Chevrolet 454ci (7.4L) big block V-8 engines. P/N (8) H581CP-030 + 2M683-030. These pistons can be used as a performance upgrade in most 454ci engines. Feel free to message us with nay fitment questions.PISTON SPECIFICATIONSBore: 4.280 in. (at .030 bore)Stroke: 4.000 in. (stock)Connecting Rod Length: 6.135 in.; rods NOT includedPist...

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