03-03-2004, 12:06 AM | #1 |
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Join Date: Feb 2004
Location: Moose Jaw, SK, Canada
Posts: 74
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4-bolt mains?
The original 350s that came with 72 c10's are 4-bolt mains, right? Just making sure of this...
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Jonny- 1972 C10 Fleetside |
03-03-2004, 12:41 AM | #2 |
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Join Date: Mar 2003
Location: Colfax-California
Posts: 8,630
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Every original 350 in the '70s trucks that I have seen have been 4 bolt. There is a casting number on the rear of the block by the bellhousing mount so that you can verify. I think that the last 3 digits were 010
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03-03-2004, 12:51 AM | #3 |
Roadtrip!
Join Date: Feb 2003
Location: Grand Rapids MN
Posts: 13,787
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The last 3 digits 010 could also be 2 bolt. The only way i know for sure is to drop the pan. The full # is 3970010 from 69-79, Car or truck came in 2 and 4 bolt.
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