Possible problem with th400 swap in LT1
06-20-2005, 09:44 PM
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Possible problem with th400 swap in LT1 I got the new tranny in and the flexplate (Scat SFI 153 tooth) is 1/4" away from the converter (PTC 10"). The tranny bellhousing is flush against the block all the way around. I know some of the LS1 applications require spacers on the flexplate, but this is an LT1 which should not require it. Any idea what is causing this? Fixes?
06-21-2005, 03:07 PM
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My tranny guy finally returned my message and said anything between 1/8" to 3/8" is fine. Just pull the converter towards the flexplate and bolt it up.
