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Thread: Complete 5.3l OBS Swap

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  1. #1
    Join Date
    Dec 2010
    Posts
    181

    Complete 5.3l OBS Swap

    Here are the basics... but I'm sure I'm forgetting a lot.
    5.3l with 160K, pulled due to coolant loss, found castech heads on it
    Installed LS1 853 heads milled .027
    228/222 588 114.5 cam, low mileage
    brand new PAC 1218 springs, TSP pushrods
    ARP head bolts, ARP crank bolt
    LS1 timing chain with ~70K, LS2 oil pump, 71K miles
    engine is COMPLETE.. 2 water pumps, maybe 3? alt, PS pump, starter, 5.3 AC compressor is there brackets, belts, coils, flex plate... etc
    Factory Y pipe with cats cut out, will need to be welded back up
    Nelson Performance E-fan harness
    3.5" Exhaust with hooker aerochamber muffler, set up to dump in front of rear axle (will require some fab)
    4l60e from a 4.8l w/ cracked frame, 67K miles
    Performance of New Hampton 3K triple disk lockup stall converter, and stock converter.

    I also have:
    Harness/PCM tuned (I can adjust tune to meet requirements): 400 [SOLD]
    HPTuners, licensed to this PCM, no credits left: $250
    Dirty Dingo Mounts (powdercoated): 130 [SOLD]
    Rad Fan Harness (Nelson, new): 120
    Painless Fuseblock: 65 [SOLD]
    Walbro Fuel Pump: 150 (I also have a vortec fuel bucket with burned out pump I'll include to scavenge parts off of) [SOLD]
    MAF: 85 [SOLD]
    EFI Fuel Hose/Clamps: 35 [SOLD]
    Fuel Filter: $20 [SOLD]
    Stock Fuel lines (to adapt TBI lines to rails with flex line): 30 [SOLD]
    Stock Throttle/cruise cables (new): 75 [SOLD]
    Coolant Temp/Oil Press Sensor Adapters (for use with OBS sensors into 5.3l): 35 [SOLD]
    (2) Temp sensors (planned to run 2 senders to a switch for coolant temp and trans temp, 1 gauge): 40 [SOLD]

    B&M Trans Cooler: 75
    3.5" Exhaust w/ muffler (requires welding, set up to dump in front of rear axle): 150
    Stock transmission cooler lines: $50
    Hummer H2 Intake: $120
    2 extra water pumps: Make offer
    AC compressor (off of 5.3l): Make offer
    Coolant bottle/lines from 5.3l: Make offer



    Last edited by Wagonbacker9; 09-29-2012 at 09:27 AM.

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