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Program Engineering Pontiac 421-428-455 Center Main Caps Billet Steel PRO-P455C


Pontiac 421-428-455 Steel 4-Bolt Main Caps with Dowel Pins (Set of 3) by Program Engineering *BLOCK MUST BE ALIGN BORED*

Pricing: $299.95



ARP Main Stud Kit Recommended- Part# ARP-194-5601

ALL aftermarket billet main caps require line boring and require the thrust surface to be machined to match your particular block


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  • 18.0 lbs.

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