Well i was under the impression that my 4l60e torque converter out of my 02 blazer would bolt up to my lq4 flex plate. Its very close but doesnt quite bolt up. about an 1/8 inch off after i put one bolt in. i also noticed the torque converter doesnt slide into the recess on the crank...
Im sure im missing something crucial to this swap any help would be appreciated.
by the way the lq4 is an 02 out of a denali and my 4l60e is out of my 02 blazer zr2
that is likely the reason why. What style input shaft is on the 60e out of your blazer? Is the input shaft just splines with an oring or does it have the small guide on the end of it. The 4.3L v6 crank is the old style gen1 length and the gen3 crankshaft is about 3/8" shorter, causing the issues you're encountering. CircleD can build you a custom converter to marry the two together. My 80e has a custom converter to do the same thing, old style converter bolting to a Gen3 flexplate.
Last edited by RedHeartbeat; 09-30-2010 at 11:46 PM.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
is there any other way around a custom converter? if i have to go that route id rather change transmissions simply because i wasnt planning on using this trans long term at all.
a hughes adapter and slot the holes in the flexplate. Or a GM flexplate spacer and longer bolts. The spacer goes on the transmission side of the flexplate.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
whats safer? either way i would have to slot the flex plate holes right?
hughesperformance.com
I think this is the snout extension...
HP3795GM 4L60E Crankshaft Adapter for LS1 Motor
Either way should be fine. If you don't plan on keeping that trans in there long then I wouldnt worry about. If it were long term I'd go with the bolt-on spacer and longer bolts.
yeah, slotting would be necessary either way if you use the 300mm flexplate from a Gen3 engine with a 278mm convertor.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
It's because you are using a LQ4 that came in front of a 4L60e originally. You need the spacer and flexplate that would have been on one that was in front of a 4L80e, or use the adpater on the aft side of the curved flexplate.
http://www.ls1tech.com/forums/automa...0r4-4l60e.html
if it came from an 80e truck it would have bolted up to the V6 converter with nothing more than bolt hole issues at the most, they have the Gen1 length crank setup using spacers, longer bolts and flat flexplate.I faced this issue years ago when I put the 97 80e in behind my 408. I originally had a Gen3 60e behind the 408 and had to put the spacer on the crank and get a flat flexplate like the Gen1 vehicles have.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Where can i get the bolts? Im going to go too Summit tommorow to get the adapter, how much longer should the bolts be? And is it the flywheel or torque converter bolts that need too be longer?Originally Posted by RedHeartbeat
Sorry for all the questions im new too the chevy world.
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