LS1 & 621 Bellhousing
#1
Teching In
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Join Date: May 2009
Location: Lancaster, KY
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LS1 & 621 Bellhousing
I have a question about mating a 621 Chevy bellhousing up to an LS1. The 11" clutch works fine and all that, but I am curious about the bellhousing cover plate. If I don't have the cover plate installed between the bellhousing and the engine, then I've got a couple of large gaps that I'm afraid will let junk up into the clutch assembly. However, the stock cover plate doesn't fit all that well and I'm worried that it will rub the engine side of the clutch plate. Just like to know what others have done. Thanks for any suggestions.
#2
TECH Junkie
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Stock 98-02 F body covers work fine with the 621. PN 12558718 and 12561536
More info here:
https://ls1tech.com/forums/conversio...-ls-motor.html
More info here:
https://ls1tech.com/forums/conversio...-ls-motor.html
#6
I ran without covers for a number of years with no issues, but then got some of the factory covers and trimmed them down to fit. Pretty easy to do and looks a lot better than the open bell. Almost no reason not to install them