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Thread: 6.0 vs 8.1

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  1. #1
    Join Date
    Mar 2008
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    Burleson, Texas
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    6.0 vs 8.1

    I have been planning on a 5.3 or 6.0 but I got an offer on a 502 today for $750. Would it be worth it on a rcsb 5 speed? I don't know much about the 502. Is it a gen III also or is it something different?
    '00 Silverado 4.8L (Gone)
    '11 Silverado 4.8L

    Quote Originally Posted by RUFFNECK View Post
    ...First relieve the pressure before doin' that or else you will get a nasty squirt and may get in ur eye.

  2. #2
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    Sep 2005
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    Austin Tx.
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    8.1 < 6.0 by FAR!!
    1951 3100
    1984 C10

  3. #3
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    Jun 2008
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    Houston
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    yes and what exact motor are u talking about??? the 8.1 big block out of the 00-07 3/4 ton 1 ton is a 8.1l or a 496 not a 502, also THIS SWAP IS A PAIN!!!!! ive done one or tried i guess u could say me and the kid that i was helping split ways before it was finished, and still does not run. but for the money that it would cost to do a 8.1 u should just build a lq4 408 stroker, also what do u have 4.3 or 4.8 if 4.8 they arnt that bad i dont see a huge advantage over a 5.3 but they both can go up to a 383 stroker
    74 Austin Morris Mini 1000 - Daily Coil Spring conversion, lowered, Disc Brake conversion
    FOR SALE: 04 RC/LB Duramax -12 second tow pig, built Allison, Tune, and supporting mods
    FOR SALE: 03 Silverado SS -DBRods built 40X, DP, Suspension. Going for fast

  4. #4
    Join Date
    Nov 2008
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    Waco, TX
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    gas or no gas, i got a 8.1 its fun but not the nest on gas

  5. #5
    Join Date
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    how can you build a 383 stroker out of a 5.3L? what do you need to do?
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

  6. #6
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    8100 and 502 are barely distantly related but would bolt in the same.

  7. #7
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    Jun 2008
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    Houston
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    383 5.3 is board out to 3.905 and 4" crank
    74 Austin Morris Mini 1000 - Daily Coil Spring conversion, lowered, Disc Brake conversion
    FOR SALE: 04 RC/LB Duramax -12 second tow pig, built Allison, Tune, and supporting mods
    FOR SALE: 03 Silverado SS -DBRods built 40X, DP, Suspension. Going for fast

  8. #8
    Join Date
    Feb 2008
    Location
    Arizona
    Posts
    648
    Quote Originally Posted by 408.Luke View Post
    383 5.3 is board out to 3.905 and 4" crank
    is it worth it? is it hard to do it???
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

  9. #9
    well yea, it will be a lot of work tho.

  10. #10
    Join Date
    Feb 2008
    Location
    Arizona
    Posts
    648
    I guess doing that (383 stroker) will be better than swaping to a 6.0L... right? Will my cam work fine on that engine?
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

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