Grewe02
Supreme Leader
Over the course of the past 8 years, I have been slowly getting my CJ running after swapping in an LS1 motor. I will do my best to consolidate as much knowledge relating to that process in this thread. There is an exorbitant amount of knowledge and information at http://ls1tech.com/
There are more LS motor variations out there than I can keep track of. Keeping this post updated with all of the different variations will be impossible, so I will give as much knowledge as I can and leave it at that.
The aluminum blocks are plentiful. The LS1, LS6, LS3 and so forth all have aluminum blocks and heads. The LS1 and LS6 use a cable throttle body compared to the LS3 using an electronic throttle body. This is one of the differentiating features between a Gen 3 and Gen 4 motor.
https://en.wikipedia.org/wiki/LS_ba...on_III_GM_small-block_.281997.E2.80.932007.29
https://en.wikipedia.org/wiki/LS_ba...ion_IV_GM_small-block_.282005.E2.80.932016.29
The LS1 is likely the most popular and available. It is available in the Trans Am and Corvettes. The LS1 makes more power than torque, but I believe it has the most aftermarket support.
https://en.wikipedia.org/wiki/LS_based_GM_small-block_engine#LS1
The LS6 makes more power and torque than the LS1, and came in Corvette Z06 and the Cadillac CTS-V. One benefit of this motor that I know of is that it uses an internal PCV system instead of external such as on the LS1.
https://en.wikipedia.org/wiki/LS_based_GM_small-block_engine#LS6
There are many truck motors, and I do not know a great deal about them. I do know that they are primarily 5.3L and use an iron block with aluminum heads.
https://en.wikipedia.org/wiki/LS_based_GM_small-block_engine#5.3_L
***Note*** I know that the truck motors have different engine accessory spacing than car motors. So, you cannot install a truck power steering pump on a car motor without swapping to all truck accessory brackets. Also, the car intakes will not fit with truck accessory mounts. It's either all or nothing, or a very custom application.
When I was searching for a new intake, I found out the Chevy Trailblazer SS 6.0L intake makes the most torque of any other LS intake.
https://en.wikipedia.org/wiki/LS_based_GM_small-block_engine#6.0_L
There are more LS motor variations out there than I can keep track of. Keeping this post updated with all of the different variations will be impossible, so I will give as much knowledge as I can and leave it at that.
The aluminum blocks are plentiful. The LS1, LS6, LS3 and so forth all have aluminum blocks and heads. The LS1 and LS6 use a cable throttle body compared to the LS3 using an electronic throttle body. This is one of the differentiating features between a Gen 3 and Gen 4 motor.
https://en.wikipedia.org/wiki/LS_ba...on_III_GM_small-block_.281997.E2.80.932007.29
https://en.wikipedia.org/wiki/LS_ba...ion_IV_GM_small-block_.282005.E2.80.932016.29
The LS1 is likely the most popular and available. It is available in the Trans Am and Corvettes. The LS1 makes more power than torque, but I believe it has the most aftermarket support.
https://en.wikipedia.org/wiki/LS_based_GM_small-block_engine#LS1
The LS6 makes more power and torque than the LS1, and came in Corvette Z06 and the Cadillac CTS-V. One benefit of this motor that I know of is that it uses an internal PCV system instead of external such as on the LS1.
https://en.wikipedia.org/wiki/LS_based_GM_small-block_engine#LS6
There are many truck motors, and I do not know a great deal about them. I do know that they are primarily 5.3L and use an iron block with aluminum heads.
https://en.wikipedia.org/wiki/LS_based_GM_small-block_engine#5.3_L
***Note*** I know that the truck motors have different engine accessory spacing than car motors. So, you cannot install a truck power steering pump on a car motor without swapping to all truck accessory brackets. Also, the car intakes will not fit with truck accessory mounts. It's either all or nothing, or a very custom application.
When I was searching for a new intake, I found out the Chevy Trailblazer SS 6.0L intake makes the most torque of any other LS intake.
https://en.wikipedia.org/wiki/LS_based_GM_small-block_engine#6.0_L
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