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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Oct 2010 Posts: 29 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2010 Posts: 29 | I have a 57 3100 and just purchased a V8 (tubular) crossmember from Classic so I can get rid of the front V8 motor mounts on my 283. Didn't come with any bolts so can someone tell me what size/length bolts & washer types I'll need for:
mount to block
mount to crossmember
and recommendations for crossmember to frame rails.
Thanks!
Last edited by LDO; 05/25/2011 1:17 PM.
| | | | | Joined: May 2005 Posts: 1,624 Shop Shark | | Shop Shark Joined: May 2005 Posts: 1,624 | Can you call the vendor (Classic) and ask? Other than that, go with the best (read highest yield strength) SAE Grade 8. Oh yeah, and a tape measure.
Six volt guy living in a twelve volt world
| | | | | Joined: Mar 2009 Posts: 788 'Bolter | | 'Bolter Joined: Mar 2009 Posts: 788 | a grade 5 bolt will do quite well there
ron | | | | | Joined: Mar 2005 Posts: 576 Shop Shark | | Shop Shark Joined: Mar 2005 Posts: 576 | i use grade 8 for pretty much everything...I buy em bulk at tractor supply....for the block i'd say 3/8-16x 1" probly.... definatley want to use split ring lock washers...no clue for the rest without seeing it......dave
1949 Chevrolet 3100 "When this thing hits 88 miles an hour, you're going to see some serious sh%t." -Doc Brown
| | | | | Joined: Oct 2010 Posts: 29 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2010 Posts: 29 | Thanks.
Got it all sorted out last night. | | |
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