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General LS Swap Information

LS engine accessories are determined by what harmonic balancer is on the LS engine.

This picture shows how to measure and determine what you have.

1958-1999 Big and Small block Chevrolet engines use the same style 3 bolt engine mounts.

Aftermarket urethane engine mounts available today are classified and short and wide, or tall and narrow.

To determine which aftermarket mount will fit you will need to measure your existing frame stand on your car where the engine mount originally fit.

Energy Suspension Short and wide is 3.1115G

Energy Suspension Tall and narrow is 3.1117G

 

There are two different urethane insert mounts for clam shell style motor mounts.

A 3 bolt clam shell (Left) uses Energy Suspension part number 3.1121G (Black), 3.1121R (Red).

A 4 bolt clam shell (Right) uses Energy Suspension part number 3.1116G (Black), 3.1116R (Red).

 

 

On LS 3 engines- some came with a factory oil cooler that mounts on the drivers side of the block. 

This will have to be removed and install a factory coolant plug GM part # 12561663.

    

When installing the LS engine into 4X4 truck the front drivers side cross member will need a slight notch.

The front oil pan will slightly touch-

  

Different 6 speed transmission and shifter lengths-

LS Alternator wiring-

LS Alternator Wiring

 

 

LS Power Steering Pressures-

Corvette C5-C6, Cadillac CTSV, Pontiac G8

Vette Ls1, LS2, LS6, LS7, LS9-  2.4/2.8 GPM 1250/1350 psi

Cadillac CTSV LS2, LS3. LS6- 1.9-2.1 GPM 1640/1740 psi

Cadillac CTSV LSA- 2.7 GPM 1625/1850 psi

Pontiac G8 - 2.0 GPM 1200/1300 psi

GTO F-Body

Camaro 1998-02- 2.7-3.1 GPM 1200-1300 psi

GTO All- 1.95-2.35 GPM 1100/1200 psi

Vortec Truck

C1500, C2500, C3500- 3.0-3.9 GPM 1425-1550 psi

Trailblazer LS2- 2.7-3.1 GPM 1400-1500 psi

Borgeson makes a shim kit to lower pressures on GM power steering pumps if you are running a small diameter pulley and the pressure is too high HERE.

 

 

 

Making custom length MSD spark plug wires when removing the coils from the valve covers and mounting further away.

Super Conductor, Black, 25' Bulk Wire
MSD P/N 34013

LS1, 45-degree boots & terminals
MSD P/N 3304

Silicone straight boots & Terminals
MSD P/N 3301

 

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GM Gen 3 Gen 4 LS Conversion LS Swap Mounts and Accessories