Quick Quote - Click to show our recommendations for these common requests.
I have a TPI engine that I'm swapping into an older vehicle
I have a 1985-1992 TBI/TPI Camaro/Firebird
I have a 1993-1995 LT1 engine that I'm swapping into an older vehicle
I have a 1996-1997 LT1 engine that I'm swapping into an older vehicle
I have a 1993-1995 LT1 Camaro/Firebird
I have a 1996-1997 LT1 Camaro/Firebird
"My vehicle is not listed. What will a 24x system cost me?"
If your vehicle is not listed (Corvette, Impala, Caprice, or any other vehicle not listed), we do not make a specific plug and play engine harness for that application. You can use one of the "Quick Quote" buttons, "I have a [TPI or LT1] engine that I'm swapping into an older vehicle" and will be sold a stand alone type harness that you will have to install into your vehicle. This type of harness is what you would expect from other aftermarket engine harnesses as it will require hookups for ignition, battery, ground, fuel pump, etc. for engine operation.
"What else will I need? Is this everything?"
You will need new spark plug wires or shorten your existing wires using LS coil 45 degree boots & terminals (MSD 3304) and spark plug terminal crimp tool (MSD 35051). LS1 and LS Truck wires will probably be too short. You'll need a tuner; preferably a local tuner with a chassis dyno.
Components to equip your engine with crank/cam signals for the LS1 PCM (REQUIRED)
$515.00 Early/Late SBC (1995 and older engines)
$375.00 Vortec SBC (assumes you have a Vortec distributor and timing cover)
$525.00 LT1/LT4 (does not include timing cover)
Ignition Coils (REQUIRED)
$500.00 LS2 Coil Bracket Assemblies (brackets, coils, coil harnesses, and attaching hardware)
$200.00 LS2 Coils - Set of 8 (coils only)
$265.00 LS2 Coils and Connector Pigtails
I will supply my own coils
PCM (REQUIRED)
$100.00 Used LS1 PCM - GM# 12200411 (requires custom tuning not offered by EFI Connection)
I will supply my own PCM
Engine Wiring Harness (REQUIRED)
$650.00 4ft Stand Alone SBC or LT1 Harness w/ Cable Throttle (ideal for street rod use)
$700.00 4ft Stand Alone SBC or LT1 Harness w/ Electronic Throttle (ideal for street rod use)
$850.00 1993-1997 LT1 Camaro or Firebird w/ Cable Throttle (plug and play, gauges remain functional)
$900.00 1993-1997 LT1 Camaro or Firebird w/ Electronic Throttle (plug and play, gauges remain functional)
$700.00 1985-1992 Camaro or Firebird w/ Cable Throttle (call for more details)
$750.00 1985-1992 Camaro or Firebird w/ Electronic Throttle (call for more details)
I will supply my own engine harness
Billet Aluminum Timing Cover (OPTIONAL) These beautiful timing covers are manufactured by TPIS. LT1 timing cover available with or without water pump drive.
$310.00 Billet Timing Cover for SBC (early-2002)
$345.00 Billet Timing Cover for LT1/LT4 with Water Pump Drive Hole
$345.00 Billet Timing Cover for LT1/LT4 WITHOUT Water Pump Drive Hole
$365.00 Billet Timing Cover for LT1/LT4 WITHOUT Water Pump Drive WITH Big Block Crank Seal
I will use a production GM timing cover
Electronic TPI/LT1 Throttle Body (OPTIONAL) Electronic throttle systems require an LS1/LS6 Corvette/CTS-V throttle control module (TAC) and electronic pedal assembly.
$1,125.00 52mm Billet Aluminum TPI/LT1 Throttle Body, TAC Module, and Pedal Assembly
$1,125.00 58mm Billet Aluminum TPI/LT1 Throttle Body, TAC Module, and Pedal Assembly
$1,150.00 Mono-Blade Billet Aluminum TPI/LT1 Throttle Body, TAC Module, and Pedal Assembly
I will use a cable driven throttle body
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