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Mod | | | Forums66 Topics128,101 Posts1,056,181 Members48,436 | | Most Online14,466
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!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | I have had good luck using Marine-Tex. It's an epoxy like JB Weld but geared toward use around water. A bit pricey but very good. This 1940 Pontiac flathead six has been going for eight years with no sign of leakage. First media blasted, small groove along crack, roughed up with 24 grit one inch to each side of crack and then put about a 1/16 layer of the Marine-Tex along two inch wide prepared surface. Didn't take a chance with a drive in freeze plug but used an expandable rubber one which is replaced every couple years. Sorry no finished photo. [img]https://s31.postimg.cc/gopjyjagn/40_Pontiac_engineand_trans_002.jpg[/img]
Evan
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