Quote:
Originally Posted by BR3W CITY
if your do an early lq4, you may get locked into a 4l80e because of the longer crank flange on the early lq4's/
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Quote:
Originally Posted by no moa
How early is early?
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99-00 LQ4s had iron heads and the longer crank.
You aren't "necessarily" locked into the 4l80e. It had the longer crank flange that was the right length to work with the 4l80e/NV4500, 01+ used the typical LS style flange and used a spacer or extra thick flywheel to mate to the 4l80e/NV4500 respectively.
The LS style 4l60e was built to work with the shorter crank flange, while the 99-00 longer LQ4 flange would work with 700R4, TH400, old 4l60e, etc whereas the newer style needs spacers to work with those applications. The 99-00 LQ4 was the only one with the oddball flange, similar year 5.3s etc had the shorter flange.
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