josh2002-ws6

iTrader: (98)

Can anyone tell me the pro's and con's of switching from a M6 to a TH350. I plan on running nitous after this winter with the new heads and cam. I would like to be in the low 10's to high 9's. Will the TH350 stand up to what I need and want or should I look at a differant auto tranny?

8a8mfh

iTrader: (3)

I don't know but you can throw a stock rebuild kit and a 4L80E direct drum+sprag ($50-100 at a trans hardpart supplier) in a th400 and it'll hold the power IMO. The th350 MIGHT with a hardened intermediate race or an expensive custom direct drum.
And some other tweaks here and there.

performabuilt

iTrader: (25)

I have said this before a TH350 is not that much stronger than a 4L60E pariculary if your breaking hard parts , if you saw inside one you might be amazed just how similar they are. as for how different well much higher first ratio , much lower final ratio. Drivability will suffer as far a fuel efficency and general engine wear. More cruising RPM equals more wear. Why not go buILt 4L60E or better yet 4L80E

josh2002-ws6

iTrader: (98)

Where is a good place to get a 4L80E?

performabuilt

iTrader: (25)

There are several sponsors on here who offer them we do not at presnet but will in about a month when we are set up in our new larger building. I would PM a few of the Trans sponsors on here right now.

josh2002-ws6

iTrader: (98)

Cool thank you.

performabuilt

iTrader: (25)

Your welcome!