348 to TH400 Flex plate confirmation

Simon

Well Known Member
Hi members,

Could I have confirmation that all Small Block chev motor flexplates that are 168 teeth and suited to the TH400 will fit into my 348 motor?

For example would a 283 flexplate fit?
 

tenxal

Well Known Member
There is no difference between the small block and big block flex plates except for the 400 s.b. and 454 b.b. as they are externally balanced.

So, yes....any non-externally balanced sbc or bbc flex plate will work. Look for one that has two convertor bolt patterns so any torque convertor will fit. Aftermarket flex plates almost all have dual convertor patterns.
 
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