TH350 holes?
Thread Starter
Melting Slicks
Joined: Oct 2006
Posts: 2,193
Likes: 156
From: Navarre FL
TH350 holes?
I am attempting to rebuild the TH350 out of my 78. After disassembling most of it, I found a few holes at the bottom of the case, above the valve body area. At first glance they appear to be jagged, but Im not so sure. I did a search and found a few other pictures of the same thing, but nothing that addresses these holes directly. Are these factory holes for something that they just didnt bother to machine smoothly? A popular aftermarket modification of some kind? Or do I need a new case altogether?
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
I'm thinking those holes are just thin spots in the casting that have gone thru. IIRC, the only thing running right in that area is the band. Put the spacer plate on and compare the holes in it to the case, and then see if there are an passages in the valve body that will leak.
