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**COBALT** · 09-04-2003, 10:48 AM

That's true I thought. It depends on what motor the flexplate came off of or was attached to. Is it the 400 and/or the 454 that had different number of teeth??? Typically there's no issues with the 168 tooth for the small block.

A huge concern should be where the 400 came from. If it came from a 69-72 chevy truck you should be fine. If it came from any other chevy you might have an issue with the tailhousing. There were three different lengths. The chevy truck uses the shorter one for the most part. As long as the bolt pattern on the bell housing is the same you're off to a good start.

Sometimes the electric kickdown can be a pain. You'll either need to search for an original kickdown switch, or modify your gas petal like the '72, or go for an aftermarket unit. I had to do this and was lucky enough to find an original for a 2bbl, but when I installed my 1406 4bbl I went with a Lokar unit...

09-04-2003, 10:48 AM	#9
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	That's true I thought. It depends on what motor the flexplate came off of or was attached to. Is it the 400 and/or the 454 that had different number of teeth??? Typically there's no issues with the 168 tooth for the small block. A huge concern should be where the 400 came from. If it came from a 69-72 chevy truck you should be fine. If it came from any other chevy you might have an issue with the tailhousing. There were three different lengths. The chevy truck uses the shorter one for the most part. As long as the bolt pattern on the bell housing is the same you're off to a good start. Sometimes the electric kickdown can be a pain. You'll either need to search for an original kickdown switch, or modify your gas petal like the '72, or go for an aftermarket unit. I had to do this and was lucky enough to find an original for a 2bbl, but when I installed my 1406 4bbl I went with a Lokar unit... __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.