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| | | | Joined: Oct 2012 Posts: 62 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2012 Posts: 62 | We were successful in transplanting a Chrvy 235 engine into our 51 GMC this weekend. The rear mounts are attached, but not yet tightened.
We need a fabricated adapter plate for the front engine mounts.
I could make one, but wanted to ask if anyone who has made this swap before either has another for sale, or if they saved and would share the dimensions?
How thick of steel stock do you think this mount should be? Thanks! Dickson
1950 Chevy 3100 short bed
1951 GMC 3/4 ton long bed
| | | | | Joined: Dec 2003 Posts: 2,733 Shop Shark | | Shop Shark Joined: Dec 2003 Posts: 2,733 | I would think 7 ga. (3/16")ought to do it but really depends on the design. These engines are heavy. You will of course be using new rubber cushions under the timing cover. 11 ga. (1/8") might work as well, again depending on how you make it. | | | | | Joined: Oct 2012 Posts: 62 Wrench Fetcher | | Wrench Fetcher Joined: Oct 2012 Posts: 62 | Thanks. Yes, these are heavy engines! :0
But the plate is thankfully only a few inches wide...
1950 Chevy 3100 short bed
1951 GMC 3/4 ton long bed
| | | | | Joined: Apr 2010 Posts: 362 Shop Shark | | Shop Shark Joined: Apr 2010 Posts: 362 | Dickson, I have a 58 GMC which came to me with a 235 which I rebuilt and put back in. It had some kind of rubber mount, odd one from who knows where, which was toast from years of oil leaks. I didn't want to reuse it so I took the specs from the original 235 chevy mount as pictured in the tech tips and using a Prina metal press/punch made another mount. Bought the original rubber mount and parts which goes with it from Classic parts. Then because the engine is a little longer than the 270 I welded a piece of 3/16 plate to the cross member with a slight relief cut out under it to help with clearance for mount bolts. I used I hope this helps. Larry
58 gmc 100 with 350 sbc
| | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | A 235 is not "a little longer than the 270". | | |
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