switch from 4l60 to TH350

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May 10, 2009 | 01:19 AM

Derek_02z

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switch from 4l60 to TH350

I was wondering if some of you guys on here that have made the switch from a 4l60 to a turbo 350 would tell me how big of a project this is and how hard it is? I was wondering if and what needs to be changed to make the turbo 350 fit and if there is any fabrication that has to be done to make it fit? I was also wondering how strong is a 4l80e and would that be a better route than a turbo 350 for any reason besides the obvious driveability considering it has OD? Any comments or ideas would be great thanks!

May 10, 2009 | 12:06 PM

Z28/2002

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What are your plans for the car?

May 10, 2009 | 10:09 PM

ping2day

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From: Lewiston, NY

I'm doing this right now. I will let you know how it goes.

May 10, 2009 | 10:16 PM

phoenix

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From: Pembroke pines

i did the swap and love it, i just wished i had done it sooner. it does kind suck driving around on the street. you have no idea how nice OD is until its gone. I would change out the flexplate with an TCI they have the dual bolt patterns for the converter. As for the swap you will need a new cross bar for a th-350 BMR sells one, a new dip stick, drive shaft, i used my stock shifter for a while but i dont recommanded it. Not all the bolts for thebell housing are going to match back up, i think there is 3 bolts that wont be used.

May 11, 2009 | 12:37 AM

Derek_02z

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Quote:

Originally Posted by Z28/2002

What are your plans for the car?

i was just planning on a stronger tranny with a stall and a 12 bolt and eventually rebuilding my motor...

May 11, 2009 | 12:47 AM

performabuilt

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Tell us a little about your car?

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May 12, 2009 | 12:04 AM

Derek_02z

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Quote:

Originally Posted by performabuilt

Tell us a little about your car?

just a stock 02 z28 A4 had 3:23s and i have an SLP bellow and lid. I wanna get a stronger tranny and a 12 bolt in before i rebuild my motor and start making some power.