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Recently acquired 99 lq4. I have two options, buy a hella expensive torque converter to match to my 4l60e, or install a 4l80e. I already know that will require a modified trans crossmember, would it also be pushing my transfer case towards the rear, causing me to have to alter driveshaft lenghts?
Contact CircleD, they can build you a convertor to match them together for not a whole lot of money unless you're wanting to go to a billet convertor. Hell, for $900 you can get a precision Industries billet stall convertor. That will be a lot cheaper than swapping out the transfer case and all. What year truck is this going on?
2004 Z71 xcab. Except for a mild cam and tune this motor is going to be pretty stock. I want to go with the most effective option. I'd really like to build up a 4l60e and get a converter to mate them up, but I would like to first inquire with more knowledgeable folk.
undo. revised. get a standard crank to swap into it or get the custom convertor.
see I swear I read that 99-00 LQ4 had longer crankshafts and would not fit to a 4l60e.
Is this an iron head engine?
I believe it is. I had work today when it was dropped off and didn't get a ton of time to look it over. Just a basic 99 LQ4 from what I can tell, would a picture help?
Edit: specs say only 2000 model LQ4s had iron heads, this is a 99 1/2.
it might. Surely they can build you a custom convertor for around $300. Adapter convertors are all over the place. My 80e convertor was built to mate to an LS1, the trans was originally from a SBC.
could I get an LS1 crank to fit? all I would need is the right size crank and bearings correct?Quote:
Originally Posted by RedHeartbeat
just get a 6L crank out of a 2001+ and swap them out with new bearings, put some ARP rod bolts in while you're at it.
On the longer cranked 6.0s you could run the stock flat 6 hole flywheel and just enlong the 3 holes the 60e converter uses...same distance from the block overall as a 4.8/5.3/6.0 with dished out flywheel or 6.0 with flat flywheel and spacer..
The pilot on the convertor sticks out too far to do that when he's trying to keep the old style 6L with the new style 60e trans.
Oh weird. There's multiple people around here that have done it over the years and havnt had any issues. Maybe lucky.
When you have a 2001+ 6L it's easy to convert an early 80e to it. Going older 6L to LS based 4L60e is tougher.
what do you mean by a "early 80e"? like a 1995 80e?Quote:
Originally Posted by RedHeartbeat
yeah, the older 80e were setup for the SBC crank length and won't bolt directly to the LS based engines without work, albeit the 1999-2000 6L that was designed specifically to work with the SBC design 80e setup. The only way to get them to work with the LS setup was a custom built convertor. I have heard tale that the later 80e convertors were designed to work with the LS flexplate but I've never touched one that does.
I ran the a 2000 long flange crank with a flat flexplate and a 02 60e with a yank converter and didn't have a problem. The hole for the snout was deep enough that there wasn't an issue just had to elongate the bolt holes.