Ls1 to TH350 issues
I am building a rock buggy, and am trying to use a 98 F-body LS1 and a th350.
The flex plate that came on the engine (stock I assume) is dished and has 2 different 3 bolt patterns, one of wich bolts to a summit 2500rpm converter I bought for it. I purchased the spacer that goes between the TC and the back of the crank, it's the press in spacer not the bolt in spacer. The issue is I put it all together and I have only about 1/16-1/8 of an inch of play forward and aft for the TC, and when you push it foreward the bolt pads are 1/8" from the flex plate. I can see that the spacer is bottomed out in the crank and there is a small gap between the face of the converter and the rear face of the spacer, but I cannot get the converter to slide forward enough to touch the flex plate.
The flex plate that came on the engine (stock I assume) is dished and has 2 different 3 bolt patterns, one of wich bolts to a summit 2500rpm converter I bought for it. I purchased the spacer that goes between the TC and the back of the crank, it's the press in spacer not the bolt in spacer. The issue is I put it all together and I have only about 1/16-1/8 of an inch of play forward and aft for the TC, and when you push it foreward the bolt pads are 1/8" from the flex plate. I can see that the spacer is bottomed out in the crank and there is a small gap between the face of the converter and the rear face of the spacer, but I cannot get the converter to slide forward enough to touch the flex plate.
I had to take an 1/8" off my spacer. I had 1/4 between the converter pads and flexplate. But the converter would only pull up and 1/8" and bottom out. Took 1/8 off the spacer and the converter pulls all the way up to the flexplate now. So I then used a 1/8" shim. This pulled the converter out of the trans 1/8" and left an 1/8" to the crank spacer for converter charge.

