Wtb nbs 5.3
#1
WTB NBS 5.3 with the flat top pistons. I want to build a high compression 5.3 and the easiest way is to buy a nbs motor. PM me if you have one all i really need is the short block.
#4
I have an '07 Avalanche 5.3 engine w/ 500 miles on the short block. Would be willing to part with just the short block if wanted.
https://www.performancetrucks.net/fo...d.php?t=445348
https://www.performancetrucks.net/fo...d.php?t=445348
#6
#7
I have an '07 Avalanche 5.3 engine w/ 500 miles on the short block. Would be willing to part with just the short block if wanted.
https://www.performancetrucks.net/fo...d.php?t=445348
https://www.performancetrucks.net/fo...d.php?t=445348
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