Description
Forged Diamond Pistons for Pro 3-D 24/26 Degree cylinder heads. Developed for drag racing, they can also be used with small nitrous kits (pin upgrade recommended for nitrous applications). Designed for 2.350″ diameter intake valve and 1.900″ exhaust valve. Premium 8620 wrist pins are included. Standard 1/16″ x 1/16″ x 3/16″ ring package (Rings not Included). Compression Ratios figured @ 9.800″ deck. Gasket volume= 9.7-10.9cc, top ring down from piston crown .250″ -.300″. Valve relief depths intake .320″ intake and .130″ exhaust. Pistons work with virtually any open chamber 24 or 26 degree cylinder head with little or no hand blending – except Edelbrock and GM Performance heads.
Compression Ratio with 112cc Heads 16.2:1
Compression Ratio with 118cc Heads 15.2:1
Advertised piston weight 635 grams
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