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  1. #1
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    Quote Originally Posted by Quik View Post
    a LQ4 with 243 heads alone should put you right around 10.4. since 243 heads on a LQ9 puts it at 11.1

    milling the heads should net you around 10.8. your 44s are little to large for your setup. a good set of 36s are plenty for a 6litre. 44s are good for 402/408s

    gaskets on these motors arent like yesterdays. they are actually metal and dont go bad.
    so i pissed money away on the injectors, the oil pump and such.
    will the injectors be way too much for the motor even when tuned?

    i thought the gaskets on the rear seal and such aren't like the intake gaskets....
    2008 GMC CCSB 6.2/6L80e swap
    Gen IV 5.3/60e swap 1994 ecsb W/T

  2. #2
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    Quote Originally Posted by Quik View Post
    the rear seal and front seal are rubber and oens that do go bad yes. but rest are reusable and not prone to going bad

    give ya an idea on injector. my 11.1 408 with a 244/248 cam at 7k only seen 76% duty cycle with 48# injectrs. they were svo 42s

    my 6.0 at 11.1 with a 232/234 cam only seen 73% duty cycle at 6800, same motor with a 242/248 cam only seen 81% duty cycle in a fbody with svo 30s with are 36# injectors

    some will say youll use themn down the road im telling you from my experience what i encounterd. you want ot be between 70 and 85% duty cycle for ideal

    our intake gaskets dont go bad, they are rubber O rings...well they arent O but like a rectangle

    well, i picked the injectors up for cheaper than brand new and they dont have a lot of miles on them so i didn't want to pass them up.

    i'll never go FI unless i win the lottery so looks like ill be just an NA6.0 in an OBS.

    the wiring is the hardest thing that i've come across and it seems like no one has pictures or details on exactly what to hook up where and such. i'll wait to see if i can rework my harness or not then if i cant ill spend the money on one.

    this swap should take me some time so it'll be a step by step move.

    BUT any input and help will be great.
    2008 GMC CCSB 6.2/6L80e swap
    Gen IV 5.3/60e swap 1994 ecsb W/T

  3. #3
    Join Date
    Aug 2007
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    Quote Originally Posted by Quik View Post
    actually harness is easy to work with. remove all that is unnecessary and youll have left only a few wires that need power. say about 5 hours given you take time and etc. you could have more time but 5 hours would be a safe bet

    i havent did a swap in that truck but have done the swap for other year rides. a standalone harness is a standalone harness. now to mate some of the wires to your stock wiring would take longer
    thought all you would need is a few wires and such.

    my brother in laws brother in law (if that makes any sense) bracket races so he's going to help me with the install and wiring and such.
    2008 GMC CCSB 6.2/6L80e swap
    Gen IV 5.3/60e swap 1994 ecsb W/T

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