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Engine swap

Tiny
CHARLES STEELE
  • MEMBER
  • 1988 CHEVROLET 3500
  • 5.7L
  • V8
  • 4WD
  • MANUAL
  • 100,000 MILES
Will an 2005 LS fit in without a lot of mount modes? I expect a wire harness change but all that will come with engine along with emc from pick and pull.
Monday, June 29th, 2020 AT 3:41 AM

4 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

Yes, it will fit in with not a lot of problems.

You will need mounts and possible cross-member relocation if you are using another transmission.

The wiring harness will need to be modified as you already know.

Roy
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Monday, June 29th, 2020 AT 4:11 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,582 POSTS
Because LS swaps are a popular thing you can get stand alone PCM's and harness kits reasonable. Those allow you to run the engine in just about any application. The harness comes with a more universal set of outputs as well.
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Monday, June 29th, 2020 AT 12:34 PM
Tiny
CHARLES STEELE
  • MEMBER
  • 37 POSTS
Would like to keep standard 4 speed can I get flywheel to fit LS and handel clutch will I need to move motor mount location or just use its mounts?
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Wednesday, August 5th, 2020 AT 2:41 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
No, the motor mount locations are the same.

The cross member for the transmission will have to be adapted. You will need to drill holes for the mounting of the cross member.

Roy
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Wednesday, August 5th, 2020 AT 2:43 PM

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