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Thread: OBS AC pump and 80e flywheel

  1. #1
    Join Date
    Mar 2013
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    Long Beach California
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    637

    OBS AC pump and 80e flywheel

    i thought i would be able to use the LS pump but after reading it looks like the two systems work differently and its not that difficult to mod a bracket for the old pump to work so im just going to stick with that but my pump is shot. anybody got a good used one laying around from their old motors?

    also need a 80e flexplate for the trans swap. idk what shipping costs but if its a good price ill take it. shipping to 90701

    thanks!
    Like Tumbler in "Gone in 60" I'll drive anything with wheels or without

    My 95 ECSB LQ9 build thread - http://www.ls1truck.com/forums/lsx-t...to-95-obs.html
    CALI LEGAL ENGINE SWAP!
    Stock 03 LQ9, DBW, 95' 4l80e w/ Transgo shift kit, 2010 50# GM injectors, 2800 Circle D stall, Spectre CAI, Upgraded trans cooler, Home-made E-fans/shroud, Dual EP-381 fuel pumps w/Home-made hotwire kit
    NEXT ON LIST: Dual Battery setup, CAM/Valvetrain upgrade, Build my own rear mount turbo, TRU-TRAC, HIT THE STRIP!!!

  2. #2
    Make sure the AC compressor you get has the same amount of grooves in the pulley to match all your other pulleys
    My old compressor was a 5 groove so I have to buy one for a 91 camaro to get a six groove

  3. #3
    Join Date
    Nov 2007
    Location
    Spiro, Oklahoma
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    I've got one, It worked great when I pulled it. Let me know if your interested and I'll get you pics of it.
    1991 Silverado-L33 5.3L, 212/218 .557 .562 115+4, ASP under drive pulley,180* thermostat, 90mm truck intake w/ LS3 throttle body. Shoenfeld conversion headers and duel Flowmaster exhaust. Performabuilt LVL 1 transmission and 23-2500 stall converter.

  4. #4
    Join Date
    Mar 2013
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    thanks for the heads up mike. didnt even think about that. but it did confirm my ls pullys are def 6 groove.

    that being said, im interested in your pump low91 but is it a 6 groove? maybe your is the same as the camaro since they are both 91's? let me know. pics would be cool
    Like Tumbler in "Gone in 60" I'll drive anything with wheels or without

    My 95 ECSB LQ9 build thread - http://www.ls1truck.com/forums/lsx-t...to-95-obs.html
    CALI LEGAL ENGINE SWAP!
    Stock 03 LQ9, DBW, 95' 4l80e w/ Transgo shift kit, 2010 50# GM injectors, 2800 Circle D stall, Spectre CAI, Upgraded trans cooler, Home-made E-fans/shroud, Dual EP-381 fuel pumps w/Home-made hotwire kit
    NEXT ON LIST: Dual Battery setup, CAM/Valvetrain upgrade, Build my own rear mount turbo, TRU-TRAC, HIT THE STRIP!!!

  5. #5
    Join Date
    Mar 2013
    Location
    Long Beach California
    Posts
    637
    oh and i just picked up a flexplate from another member yesterday so thats off the list!
    Like Tumbler in "Gone in 60" I'll drive anything with wheels or without

    My 95 ECSB LQ9 build thread - http://www.ls1truck.com/forums/lsx-t...to-95-obs.html
    CALI LEGAL ENGINE SWAP!
    Stock 03 LQ9, DBW, 95' 4l80e w/ Transgo shift kit, 2010 50# GM injectors, 2800 Circle D stall, Spectre CAI, Upgraded trans cooler, Home-made E-fans/shroud, Dual EP-381 fuel pumps w/Home-made hotwire kit
    NEXT ON LIST: Dual Battery setup, CAM/Valvetrain upgrade, Build my own rear mount turbo, TRU-TRAC, HIT THE STRIP!!!

  6. #6
    Join Date
    Nov 2007
    Location
    Spiro, Oklahoma
    Posts
    316


    1991 Silverado-L33 5.3L, 212/218 .557 .562 115+4, ASP under drive pulley,180* thermostat, 90mm truck intake w/ LS3 throttle body. Shoenfeld conversion headers and duel Flowmaster exhaust. Performabuilt LVL 1 transmission and 23-2500 stall converter.

  7. #7
    Join Date
    Mar 2013
    Location
    Long Beach California
    Posts
    637
    Great pics. Thanks man. But it looks like you have a 5 groove... Hard to tell from the pics. If so then it looks like I won't be able to use it. Can you confirm?
    Like Tumbler in "Gone in 60" I'll drive anything with wheels or without

    My 95 ECSB LQ9 build thread - http://www.ls1truck.com/forums/lsx-t...to-95-obs.html
    CALI LEGAL ENGINE SWAP!
    Stock 03 LQ9, DBW, 95' 4l80e w/ Transgo shift kit, 2010 50# GM injectors, 2800 Circle D stall, Spectre CAI, Upgraded trans cooler, Home-made E-fans/shroud, Dual EP-381 fuel pumps w/Home-made hotwire kit
    NEXT ON LIST: Dual Battery setup, CAM/Valvetrain upgrade, Build my own rear mount turbo, TRU-TRAC, HIT THE STRIP!!!

  8. #8
    Join Date
    Nov 2007
    Location
    Spiro, Oklahoma
    Posts
    316
    It has 5 groves, same as the LS truck accesories. It's identical to the compressor that came with my Novac A/C bracket kit thats on my truck now.
    1991 Silverado-L33 5.3L, 212/218 .557 .562 115+4, ASP under drive pulley,180* thermostat, 90mm truck intake w/ LS3 throttle body. Shoenfeld conversion headers and duel Flowmaster exhaust. Performabuilt LVL 1 transmission and 23-2500 stall converter.

  9. #9
    Join Date
    Mar 2013
    Location
    Long Beach California
    Posts
    637
    ok well it seems like it will work. only problem is the connector is is definately different than mine. yours is round and mine is flat oval. do you happen to have the old connector on your old harness that you removed? and how much do you want for it? shipping to 90808
    Like Tumbler in "Gone in 60" I'll drive anything with wheels or without

    My 95 ECSB LQ9 build thread - http://www.ls1truck.com/forums/lsx-t...to-95-obs.html
    CALI LEGAL ENGINE SWAP!
    Stock 03 LQ9, DBW, 95' 4l80e w/ Transgo shift kit, 2010 50# GM injectors, 2800 Circle D stall, Spectre CAI, Upgraded trans cooler, Home-made E-fans/shroud, Dual EP-381 fuel pumps w/Home-made hotwire kit
    NEXT ON LIST: Dual Battery setup, CAM/Valvetrain upgrade, Build my own rear mount turbo, TRU-TRAC, HIT THE STRIP!!!

  10. #10
    Join Date
    Nov 2007
    Location
    Spiro, Oklahoma
    Posts
    316
    Do you mean the plug on the front or the back? If they're different I will send the right plugs with it. I have to change my front plug for sure as it doesn't match my new compressor so that's no problem. I would take $50 shipped without the hoses, if you need the hoses I'll have to get a bigger box so shipping may be more.

    These are the plugs that match the compressor.



    1991 Silverado-L33 5.3L, 212/218 .557 .562 115+4, ASP under drive pulley,180* thermostat, 90mm truck intake w/ LS3 throttle body. Shoenfeld conversion headers and duel Flowmaster exhaust. Performabuilt LVL 1 transmission and 23-2500 stall converter.

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