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Thread: Cummins conversion, best year?

  1. #1

    Default Cummins conversion, best year?

    Hey everyone

    I'm trying to plan out a Cummins conversion for my 1993 3500 Chevy.
    I might try to buy a block for around $400 and then build up from there.
    What engine block year would be best for this conversion?

  2. #2
    Join Date
    Feb 2009
    Location
    ZEPHYRHILLS, FL
    Posts
    193

    Default

    I would look for a 94+ 5.9L 12 valv CUMMINS if it was me. Try and find a complete one out of a 96-98 as it will have the P7100 IP and most all of the better stock pieces.
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, 3.42 gears, 261 T-case
    Trans has a mild build with ALOT of help from MIKE L. which included ALTO's for C1-C4 and a PI ML converter
    DIAMONDEYE 4" exhaust with a CORSA muffler, AFE stage 1 dry filter, EFILIVE, KENNEDY single pump and pump rub kit.

  3. #3

    Default

    Thanks for the advice, I appreciate it.

  4. #4
    Join Date
    Sep 2006
    Posts
    363

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    I also would not rule out the 89-93 blocks with the VE pump. While they don't have as much power potential as the later Cummins, they still are easily tuneable for about 400 hp. Apart from that that, they are simpler, more quiet and get better fuel economy.
    1990 ¾ ton 4x4 Chevy Suburban
    -Cummins Diesel - 12 valve - factory rebuilt
    -6 speed bullet proof manual transmission - NV5600
    -Gear Vendors Overdrive
    -Upgraded Holset HX-35 turbo
    -NP205 iron transfer case
    -3.73 gears

    1982 ½ ton Chevy Suburban
    -6.2L diesel - high nickle crack free 1982 block
    -Stans headers
    -Ported heads
    -Timing gear
    -4 speed automatic
    -3.08 gears
    -30 mpg on freeway

  5. #5
    Join Date
    Jun 2008
    Location
    So IN.
    Posts
    14

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    any updates ??

  6. #6
    Join Date
    May 2009
    Location
    NH & Eastern NY
    Posts
    205

    Default

    Ed,

    I'm considering the a simlar swap into my 83. I may have a deal lined up for a Cummins from a Dodge truck (2wd, 1st gen 12 valve) with 5 speed manual. I would like to keep the manual transmission and convert it to 4wd. Do you have any advise on putting them in the 82- 91 generation trucks/ subs? Any kits out there?
    2012 Chevy 2500HD ECSB, 6.0L gas, auto, 4x4, LT
    2003 F450, 7.3L PSD, 6 spd stick, 2wd, dump truck
    1983 GMC K2500 pickup - working on a Cummins 5.9L swap
    1987 GMC K3500 Dump, 6.2L diesel, TH400 auto - project plow truck

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