W Body
Showing 19–27 of 39 results
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LMMF 3100/3400 Extended Crank sensor harness
$42.00 Upgrade your ignition system with the 3100 / 3400 Extended Crank Sensor Harness, designed to eliminate brittle factory wiring and provide additional length for coil pack relocation and cleaner engine bay setups.ADD TO CART -
LMMF 3100/3400/3800 Coil Bracket
$40.003100 / 3400 / 3800 Coil Pack Bracket
Keep your ignition system secure with the 3100 / 3400 / 3800 Coil Pack Bracket. This bracket is designed to provide a solid mounting solution for your coil pack while helping protect it from damage or tampering.
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LMMF 3100/3400/3800 Extended Length HD Plug Wires
$50.00W-Body Extended Heavy Duty Spark Plug Wire Set (Set of 6)
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Available Colors: Red, Blue, or Yellow -
LMMF 4t45e Transmission Hotwire
$42.004T45E Transmission Hotwire
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LMMF 89-99 3100 ECM and Harness Combo
$550.00 Harness and ecm combo for 3.1 flat tops, and 96-99 3100/3400 engines includes ecm and harnessADD TO CART -
LMMF 96-2005 3100/3400 ECM Harness Combo
$525.00 Complete plug-and-play wiring solution for your 3100/3400 includes ECM and HarnessADD TO CART -
LMMF 96-97 3100 Simplified harness
$320.0096-97 3100 Simplified Standalone Wiring Harness
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LMMF 96-97 3100 Tuned Ecm
$120.00Custom ECM Tune for 1996–1997 GM 3100 Engines
Unlock the full potential of your 1996–1997 GM 3100 engine with a custom ECM tune designed specifically for race, off-road, and demolition derby applications. This calibration removes factory limitations while optimizing performance and reliability for stripped-down builds.
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LMMF 96-99 3100 injector Harness
$105.00 The 96–99 3100 injector harness is a direct factory-style replacement for 1996–1999 GM 3100 engines, built to provide a clean and reliable solution for stock replacements or simplified engine setups.ADD TO CART