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**67 cst swb** · 10-17-2014, 01:49 PM

I have a 2003 Chevy Tahoe Z71 4x4 with the stock 5.3L
What would I need to do to put a 6.0L into?
I already have the Diablo tuner I use on it, but I feel I just need a bit more power.
Its not that its bad or horrible. I am just thinking a 6.0 has more torque and would not need to downshift so much when pulling hills or when I have 3500# trailer behind it.

Am I crazy for thinking this will improve my power needs or ???
Is it simply changing out the long-block or is there more to it?

I will then use the 5.3L out of my Tahoe in my 1968 Chevy Shortbox project

Thanks for your input...
.

10-17-2014, 01:49 PM	#1
67 cst swb Senior Member Join Date: Nov 2001 Location: Rapid City, SD Posts: 2,281	Engine swap to 6.0 question... I have a 2003 Chevy Tahoe Z71 4x4 with the stock 5.3L What would I need to do to put a 6.0L into? I already have the Diablo tuner I use on it, but I feel I just need a bit more power. Its not that its bad or horrible. I am just thinking a 6.0 has more torque and would not need to downshift so much when pulling hills or when I have 3500# trailer behind it. Am I crazy for thinking this will improve my power needs or ??? Is it simply changing out the long-block or is there more to it? I will then use the 5.3L out of my Tahoe in my 1968 Chevy Shortbox project Thanks for your input... . __________________ My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White Last edited by 67 cst swb; 10-17-2014 at 01:59 PM.