• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

To rebuild, or not to rebuild

C

CODFATHER

New member
Alright so I've got a 98 gt with a 97 gtp motor and trans. The motor has just recently seized up on the bottom end and I really need a second car. So my options are these
1.) Rebuild the 3800 sc motor
2.) I have a 98 na motor that I could swap into the car and possibly go a turbo route
If I go the turbo route, without building the motor up, what will the na motor be able to handle and how much am I looking at for all the parts and labor to make this work. And also, what about the cost of the supercharged motor rebuild. Am I better to go that way? I'd like to keep that motor if at all possible and I'm not sure how bad it really is.
 


Junk the motor, it will cost way too much money to have it completely torn down and rebuild and machined.

Its cheaper to buy another short block and drop it in.

I'd still strip the motor and sell off parts though.
 
Figured so. Alright, well off to start a new thread for the sale of the motor parts lol. Should I keep my supercharger and just do a top swap on the na 3800?
 
Sure you could top swap, but you'd have alot more headache coming your way with trying to get it to run right and needing a custom tune and all.

Even if you tossed the NA motor in, you'd still be running the GTP trans right? So your still kinda boned, because the 98 GT pcm cant do GTP gearing and vise versa.
 
If you're personally attached to the L67 motor take it to a machine shop. Some shops have ways of determining if the block needs to be machined. After breaking the motor down some new parts are required. Even without any machining required the rebuild will still cost a minimum of $800 if you do the work yourself. If you don't have any experience building engines then I would strongly suggest not attempting until you do some research. It's not as difficult as people claim...just need to prepare yourself and not take any shortcuts.

If the shop says it needs machined then tell them to throw it in the scrap pile. Cylinder boring, Align honing and rod resizing can get expensive.
 


Fivefingerdeathpunch said:
Sure you could top swap, but you'd have alot more headache coming your way with trying to get it to run right and needing a custom tune and all.

Even if you tossed the NA motor in, you'd still be running the GTP trans right? So your still kinda boned, because the 98 GT pcm cant do GTP gearing and vise versa.
Click to expand...
I actually still have the entire cradle with the trans from my 98 gt with the motor still on that as well actually lol. I i guess it may be easier to just go back to the original motor, trans, cradle and everything since that will work and i have the original pcm as well with the harness
 
You must log in or register to reply here.
Back
Top