Oldsmobile

Olds Rotating assembly 4.155/6.735/4.250 -12CC

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Balanced Rotating assembly with 4340 forged rods and Bullet Pistons for 455 Oldsmobile

• 4.155 bore Bullet Forged Pistons  (-12CC dish)


• 4.250 stroke Nodular cast crank


• 6.735 4340 forged rods w/ ARP bolts


• ACL Rod and Main bearings


• 1.5/1.5/3MM Ring pack


• full competition balance