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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.
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.
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.
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. :twocents: 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.
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?Quote:
Originally Posted by RedHeartbeat
Sorry for all the questions im new too the chevy world.
the bolts have a GM part number.
http://www.crateenginedepot.com/stor...3532_small.jpg LS1 Flexplate Spacer 12563532
Item #12563532
LS1 Flexplate Spacer
MSRP: $53.39 Your Price: $40.04
Qty: http://www.crateenginedepot.com/stor...3533_small.jpg LS1 Flexplate Spacer Bolt 12563533
Item #12563533
LS1 Flexplate Spacer Bolt
MSRP: $6.93 Your Price: $5.19
Or the whole kit...
http://www.crateenginedepot.com/stor...1399_small.jpg LS Series Flexplate 12621399
Item #12621399
12621399 LS Series Flexplate with Adapter and mounting bolts.
MSRP: $76.40 Your Price: $57.30
Qty:
http://www.crateenginedepot.com/stor...heel_large.jpg
Note: 24238412 kit replaced by 24248985
thanks for jackin my thread...Quote:
Originally Posted by b18c1turboedek
anyway everyone was amazing help i think i have this figured out now.
I think his question was quite on topic, and the answer could only benefit other people that search this thread. You both got the answer you were looking for. WIN-WIN-WINQuote:
Originally Posted by LQ9_ZR2
I just contacted Hughes about the adapter HP3795 they are saying I need the concaved fles plate also. This stuff got me so confused now. I don't even know what too do. A sawp I tought was going too take 2 days is going on 1 week now because of this converter. If I go buy the Hughes extension and the ls1 bolts wiLl this converter work on the 5.3 Flywheel?
Hughes wants you to use the curved flex plate with their adapter, putting the adapter aft of the flex plate. The GM adapter goes forward of the flat flex plate, so you end up with the same spacing.Quote:
Originally Posted by b18c1turboedek
You are going to need the longer bolts either way, they have to go through the adapter and flex plate on both.
Wow you guys are cunfusing me just reading this. The hughes spacer plate goes on the engine side or the trans side. I know on the GM standard flex plate the spacer goes on the egine side right.
K guys I got the Hughes adapter. When I was at summit the told me too use the stock 5.3 flexplate bolts. They said those are. The same as the ls1s. I guess I will see in the morning if it works.
Thats why i suggested it many times recently.
lol i forgot you hate me, anyway... thanks for the info, i ordered a hughes adapter should get the ball roling with my fitment issue nowQuote:
Originally Posted by PitchBlackC3
After i installed the adapter the tranny still wouldnt bolt up. I removed the transmission and found out the converter wasnt all the way back. After making sure the converter was all the way back we mounted the tranny without the spacer and it worked perfect. The converter lined up perfect without the adapter.