What is required to bolt a T56 to an LQ9?
08-08-2005, 11:38 PM
#1
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What is required to bolt a T56 to an LQ9? Just wondering, I have an LQ9 that came out of a twin turbo escalade project car, its an 03 and has about 35 miles on it. I was thinking of sticking it in my SS, with a large cam of course, but I want to know if I will encounter any issues. I was over on the truck forums and read something about the crankshaft being 1/2" longer and needing to put a spacer or something on the flywheel? It didnt sound right to me, but I figured I better ask. Thanks guys!
08-09-2005, 11:04 AM
#2
I think it will bolt up fine. Here's what I can remember:
Some of the truck cranks had wider sealing surfaces, but by 03 all the cranks between car and trucks were the same. And besides, it shouldn't have changed the outside length of the crank. I'll try and check this book I have at home!
Some of the truck cranks had wider sealing surfaces, but by 03 all the cranks between car and trucks were the same. And besides, it shouldn't have changed the outside length of the crank. I'll try and check this book I have at home!
08-09-2005, 11:14 AM
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Originally Posted by Grimes
Some of the truck cranks had wider sealing surfaces, but by 03 all the cranks between car and trucks were the same. And besides, it shouldn't have changed the outside length of the crank. I'll try and check this book I have at home!
Thanks, I would appreciate it.
08-09-2005, 04:40 PM
#4
"The truck Gen IIIs use a variety of cranks, the main difference being the width of the rear main seal surface. The 4.8 liter crank has 3.270in stroke, while all the other Gen III truck engines use the standard 3.622 in. crank. If the Gen III V-8 engine is from a 2500 or Heavy-Duty truck, it will most likely have a wider seal pad on the crank. The car and truck seal surface diameters are common, but the heavy duty trucks have a thicker seal surface. Making things more confusing with the truck vs. car Gen III V-8 crank isssue is that in the last few years, many of the truck engines were redesigned to come with the standard, narrow "car" seal pad. "
-Chevy ls1/ls6 V-8s by Will Handzel
So, it does not mention a problem mating with transmissions, but just a different seal surface width. In another part of the chapter it mentions that the car crank is lighter, but that's all.
-Chevy ls1/ls6 V-8s by Will Handzel
So, it does not mention a problem mating with transmissions, but just a different seal surface width. In another part of the chapter it mentions that the car crank is lighter, but that's all.
08-10-2005, 12:39 AM
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Originally Posted by SSnakekiller
As far as I know it is the same. I have an LQ9 in mine and the T56 bolted right up as normal...
Would you happen to know what year vehicle the LQ9 was out of? Thanks for the help guys, I appreciate it.
