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Program Engineering Pontiac 421-428-455 Center Main Caps Billet Steel Main Caps, Splayed Outer Bolts PRO-455C4A-KIT

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  • PRO-455C4A-KIT
    • PRO-455C4A-KIT

    421-428-455 Pontiac Main Caps Splayed Outer Bolts w/Dowel Pins Comes with Bolts and Hardened Washers For outer Splayed Bolt (Set Of 3) by Program Engineering Splayed Main Caps *BLOCK MUST BE ALIGN BORED*

    Description

    ARP Main Stud Kit Recommended- Part# ARP-194-5401 or OPT-194-5401

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

    *REQUIRES ARP 2-BOLT MAIN STUDS

    ***May Require Oil Pan that will accept a External Oil Dipstick. The Stock Tube must be extensively modified to be used.***

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    • 18.0 lbs.

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