01?? Lq4 6.0 to 95 4l60e swap

Attachment 7336Attachment 7337I just Baught a lq4 6.0 out of an 01 silverado. It has iron heads. Checked the vin number of the truck it came out of. And it is a 01 model year. I am putting it in my 95 k1500. Hooking it to the 4l60e in the truck. How can i tell if it has the longer crank. Will this bolt up to my 4l60e. I have been doing a lot of reearch and can not get a clear answer. Some people say yes. some say no. The 4l60e i have was built with the mega monster ss kit from monster transmission. Any expierence any1?

it was attached to a 2wd 4l80e. It has a flat flex plate

6.0l w/ factory iron heads will not bolt up to a LS1 style 4l60e. I assume that is the question you're asking.

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Originally Posted by Wagonbacker9

6.0l w/ factory iron heads will not bolt up to a 4l60e. I assume that is the question you're asking.

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That's strange,my iron headed 6.0 bolted up to my 98 4L60E with a simple slotting of the flexplate holes,AFAIK should be the same for a 95,not sure about the electronicsthough.However,it will NOT work with a 1999+ LS style 4L60E...

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Originally Posted by tfi racing

That's strange,my iron headed 6.0 bolted up to my 98 4L60E with a simple slotting of the flexplate holes,AFAIK should be the same for a 95,not sure about the electronicsthough.However,it will NOT work with a 1999+ LS style 4L60E...

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You are correct, you'd have to use the older style LT1 compatible transmission. Edited post for clarity.

thanks guys. i belive the electronics wont be a problem. THe 4l60e is not a ls style trans. ITs is the early syle one that came in the truck. I will get another trans and mock it up before the
lq4 goin in the truck.

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Originally Posted by chriszildjian17

thanks guys. i belive the electronics wont be a problem. THe 4l60e is not a ls style trans. ITs is the early syle one that came in the truck. I will get another trans and mock it up before the
lq4 goin in the truck.

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The new computer will not be able to control the old trans...

If you're getting another transmission, you should go ahead and get the 80e that matches your flexplate. Be cautious, though, the later 80e convertor mates to a dished flex plate with the short crank rather than the flat plate with the long flexplate. Some of the 6L engines have a bolt on extension on the crank rather than an actually longer crank. You should pull the flexplate off the engine and see if you have the removable spacer, it will open up your options if you do have the spacer.

why wouldn't my old 4l60e work. IT has the 13 pin trans connector. I work at a dealership. We have a tech that did this same swap in his 95 k1500. He used a newer 6.0 but he had no problem with the electronics. shift and drives great.

im not getting a new transmission. My 4l60e is built to handle a lot more power. I am not using this truck for a race truck. this will be a daily driver. basicaly leaving the motor stock.

If you have the flat flex plate you should be able to slot the bolt holes a little and use your old transmission. I am not sure why some think the older ones won't work.

i will post pics of the build when i start it. trying to finish a solid axle swap now.

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Originally Posted by chriszildjian17

why wouldn't my old 4l60e work. IT has the 13 pin trans connector. I work at a dealership. We have a tech that did this same swap in his 95 k1500. He used a newer 6.0 but he had no problem with the electronics. shift and drives great.

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Correct me if I'm wrong, but none of the 95 trans's came with a 13 pin, so if alterations were made, then that would change the landscape a bit.

well my 95 4l60e does. I have double checked it and had a buddy count just to make sure. Otherwise i wouldnt have put a bunch of money into building my 4l60e. I have 1 out if an 94 that only has 12. so maybe its 95 and newr. not real sure.