2005 ls1 in a 98 T/A

[Semperfiws6]

Im lookin at gettin a complete GM Performance Parts ls1 replacement motor for my 1998 T/A. Its moderately priced and comes with a warranty. my question is this - it says the motor is a 2005 (being sold without ECM and wire harness), will I need to do any modifications for it to fit my vehicle?
Thanks.

[Mr. Luos]

No.

Use your sensors and computer.

[Semperfiws6]

how come on their website, they have ls1's for 99'-2000 and 2001-2002? why not just sell one ls1 if they are universal?

[Mr. Luos]

Difference in cam size.
I would think any they sell are the same now.

[Semperfiws6]

Difference in cam size.
I would think any they sell are the same now.

so basically any year ls1 from any vehicle would be a direct replacement for mine?

[cdz28]

so basically any year ls1 from any vehicle would be a direct replacement for mine?

yep

[PFM]

You would reuse your TB and your sensers. And you'll want to reuse your injectors also because you should have 28.5# instead of the 26# in later years.

[Spaz]

i wouldn't put a LS1 back in my car again... it was much cheaper to put a LS6 in it instead...

[402 Guru]

i wouldn't put a LS1 back in my car again... it was much cheaper to put a LS6 in it instead...

yeah ebay has them all day

[Demon_Z28]

yea if my motor ever goes and I dont want a rebuild, LS6 is going to be my Fall Back plan, plus LS6's are already beasty motors w/ 400 crank hp

[Semperfiws6]

You would reuse your TB and your sensers. And you'll want to reuse your injectors also because you should have 28.5# instead of the 26# in later years.

what would I need to change to put in a ls6 instead?

[402 Guru]

what would I need to change to put in a ls6 instead?

for starters a new motor mount that is sold on ebay that sets the mount too the engine inches back so the ls6 is a direct drop in from there

[Frost]

for starters a new motor mount that is sold on ebay that sets the mount too the engine inches back so the ls6 is a direct drop in from there

??

it's a direct drop in WITHOUT changing anything having to do with mounts...

Have you looked under your hood? Try to imagine your engine moving back...

[99blueZ]

Have you looked under your hood? Try to imagine your engine moving back...

its already too far back. Anymore and it would be in your lap!