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Old 02-12-2015, 11:41 PM   #9
57taskforce
All about them K’s
 
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Join Date: Jun 2014
Location: Farmington, New Mexico
Posts: 6,254
Re: vortec 454 swap into a 68 K20

If your gonna be knee deep in re working your harness it may be worth your time to look into the 0411 PCM. It's got a ton more tuning capability than what came with your suburban and can be made to work. Not that you want to but it would allow your to run the l21 (medium duty and higher vortec 454) the light duty 454 is the l29)style coil near plug system and ditch your distributor. Just an example of one thing that PCM can do. There's lots more.

Also for your front axle I'd suggest using a t400 np205, it can be made to work with the 80e.
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'57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888
'72 K20 Cheyenne http://67-72chevytrucks.com/vboard/s...d.php?t=662879
‘69 K10 SWB http://67-72chevytrucks.com/vboard/s...d.php?t=805206
'98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's
‘87 IROC-Z all original 50K mile survivor TPI 305 IROC Blue
‘10 Camaro 2SS/RS Aqua Blue Metallic #93 -version 2.0
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