Opinions GM 5.3L V8

[sawtooth4x4]

So, help me out here, I've been liking the 6.2L diesel a lot, except the damn starter has broken again. and it doesn't like to start when its below 40.

luckily i have a 700R4, I'd like to keep it. Will the 5.3 bolt up to the 700R4?

I think the 5.3L is a good motor, and I'd probably get decent mileage out of it. It sure as hell would run a lot quieter. My exhaust would almost bolt up to my current system. Parts would still be super cheap.

 

[Greg]

Yes, it will bolt up provided you have the spacer for your torque convertor and the flexplate is drilled to mount on the 5.3.... you can buy a kit with those parts, too. Last time I checked they were about $150.

http://www.jegs.com/i/JEGS-Performa...6a1KtlCAdZ9O1Lb647tGCG4q1aum1keBoC0lQQAvD_BwE

Obviously you'll need to address the TV cable for the 700R4, there are kits out there to adapt the TV to the 5.3 as well. BowTie Overdrives makes the best kit I've heard of. - http://www.tvmadeez.com/ls1_cam/

 

[sawtooth4x4]

I think I'm going to convert the transmission to full manual valve body. I like to shift it that way anway, so might as well.

 

[Greg]

I think I'm going to convert the transmission to full manual valve body. I like to shift it that way anway, so might as well.

I've heard that running full line pressure, all the time, like a full manual VB does will burn up clutches. May want to research it!

 

[rholbrook]

@moabmark on here is your manual valve body expert. He’s running one in his scrambler with an LS3 and runs it hard.

Mark???

 

[RockChucker]

I have a 5.3 in my Jeep. It does pretty well. That said, I'm pulling it out in favor of a 6.0. Should have done that out of the gate.

 

[Greg]

I have a 5.3 in my Jeep. It does pretty well. That said, I'm pulling it out in favor of a 6.0. Should have done that out of the gate.

I had the same thought about my TJ... the 5.3 is OK, but the 6.0 makes torque down low and that's pretty damn important in a 4x4.

 

[Moab mark]

@moabmark on here is your manual valve body expert. He’s running one in his scrambler with an LS3 and runs it hard.

Mark???

I ran a full manual valve body behind my 360 it was the Chrysler tranny I don't remember the number three speed and I've been running one behind my LS which is a 4L80E and they work perfectly never had any problems. Lots of people are running full manual valve bodies.

 

[Bart]

Besides the spacer there is one bolt on top of the tranny that won't line up with the 5.3, LS style block. Not a biggie. I love that motor.