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Old 02-21-2018, 04:01 PM   #15
KeithT712
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Join Date: Feb 2018
Location: Wells, VT
Posts: 49
Re: 1990 Suburban LQ4/4L80E/D60/14Bolt swap

Thats honestly the outcome I'm hoping for with the 4.56s, I think i'll be happy with them just didn't want to spend the money on a locker for the front axle until I know for sure

I wish I had seen that sooner although i cant find brackets or prices on their site, the brake parts wouldn't be a complete loss on my end if i do something different I can just as easily transplant these brakes onto the 14 bolt under my mud truck

And I hadn't mentioned much of the 6.0 yet but its perfect that you asked because that is my next step. After I pulled the motor out of my donor it was completely stripped and sent out to a local machine shop for hot tank, new cam bearings, cylinder hone and just a general check over, along with my crank which was hot tanked and polished.

Once the motor was back to me it was taped and painted, all new bearings, rings & gasket sets ordered and basically its just been covered up on my engine stand waiting for me to reassemble it. (just wanted to finish the axles first)

For a cam I ended up going with tick performance tow max stage 2 after talking with them, I wanted something above stock but nothing too crazy as I hope to tow with it and travel some.

For Heads I'm leaning towards a set of 243/799 for the bump in compression but still haven't made my mind up there either, I figured once the bottom end is reassembled ill have no choice but to pull the trigger one way or the other. But at any rate hopefully I will begin putting the motor back together this week/weekend
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1995 GMC K1500 Suburban 6" Pro comp 35x12.50R17
LSXburb -Build- 1990 GMC Suburban 6.0 Lq4 4l80e np205 D60 14FF
1988 GMC suburban 350ci Sm465 D60 14FF 8" 39.5x15R15
1969 Pontiac Lemans 400ci Muncie 4 speed
2009 Pontiac G8 Gxp M6
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