Quote:
Originally Posted by torqhead
The shim that you find on some motors between the flexplate and the crank was used when the motor was assembled with the starter and the clearance didn't make build minimum clearance spec (between flexplate and starter) is my understanding.
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Makes sense. On aftermarket mini starters to get the gear to flexplate clearance the shim goes between the starter and mounting block.
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68 GTO,3860#
Stock Original 400/M-20 Muncie,3.55’s
13.86 @ 100
Old combo:
462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's.
1968 Pontiac GTO : 11.114 @ 120.130 MPH
New combo:
517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's
636HP/654TQ
1.452 10.603 @ 125.09
http://www.dragtimes.com/Pontiac-GTO...lip-31594.html