Thread: SO who came up with the GMC V6's???
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Old December 28th, 2015, 04:55 AM
bigblockv6 bigblockv6 is offline
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Default Re: SO who came up with the GMC V6's???
The main bearing journal got even bigger on 73-74 478M V6 engines, bigger main caps, larger bolts ad just a lot more reinforcing in the main saddle area.
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