3400,

Showing 1–9 of 20 results

LMMF “Party mode” temp sensor meltdown switch
$135.00
🔥 LMMF “Party Mode” Switch

When normal mode just isn’t enough.
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LMMF 00+ 3100/3400 Simplified Harness
$315.00 Fits 00-05 GM 3100 / 3400 Simplified Standalone HarnessADD TO CART
LMMF 00+ 96-99 3100/3400 Injector Harness Adapter
$72.00 00+ to 96–99 3100/3400 Injector Harness Adapter is a simple plug-and-play solution that allows you to use a 2000–2005 style 3100/3400 harness on a 1996–1999 style engineADD TO CART
LMMF 3.1/3100/3400 Carb harness
$220.00
3.1 / 3100 / 3400 Carb Conversion Harness

Want to run your GM 3.1, 3100, or 3400 engine with a carburetor while still keeping full electronic timing control? This harness makes it simple.
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LMMF 3100 – 3400 – 2200 – LS ECM mount bracket
$65.00 W body ecm mount ADD TO CART
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
$40.00
3100 / 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
$50.00
W-Body Extended Heavy Duty Spark Plug Wire Set (Set of 6)
Available Colors: Red, Blue, or Yellow
Select options
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 harness ADD TO CART