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We installed new ARP main studs and had the mains align-honed at Jim Grubbs Motorsports (JGM) to ensure the proper bearing clearance. JGM also performed the boring and torque plate honing to ensure all the clearances were dead-on. Ironically, the 400 two-bolt main blocks are preferred since they offer superior strength in the main webbing area compared to four-bolt main 400 blocks. View Related Article
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