View Poll Results: Which one is better ??
TH350
13
36.11%
4L60E
23
63.89%
Voters: 36. You may not vote on this poll
fox ls1 + 4L60E or TH350?????????????????????
Thread Starter
TECH Resident
Joined: Jan 2004
Posts: 973
Likes: 0
fox ls1 + 4L60E or TH350????????????????????? I am now working in fox ls1 project but am confuse which gear should I buy?
It will be daily driver and stock engine only program and headers
I found th350 with shift kit and transgo rebuilt gear
Which do u advice me?
I will change the ratio if it's needed
It will be daily driver and stock engine only program and headers
I found th350 with shift kit and transgo rebuilt gear
Which do u advice me?
I will change the ratio if it's needed
TECH Resident
Joined: Oct 2004
Posts: 800
Likes: 1
From: Simi VAlley,CA
The 350 trans will only be stronger if the intermediate sprag is replaced with a big (400 type) part. The 350 sprag is only 16 or 18 elements and a stock old iron 350 can trun one inside out pretty easily. The 400 sprag I think is a 36 element big beefy part. The sprag/drum kits are not cheap but absolutely necessary in a high perf situation. The 4L60 can take a fair amount of abuse......mine does.
I've built th350's to 500 hp with just a hardened intermediate outer race, $60 from Summit. These are usually a roller clutch, not a sprag.....
It is very expensive to get the sprag type drum.
Stalls are a lot cheaper for Th350's,....
Depending on you're rear axle gear would be my determining factor.
I want to run really deep gears in my 89 Caprice...so I've opted for the 4L80E...
It is very expensive to get the sprag type drum.
Stalls are a lot cheaper for Th350's,....
Depending on you're rear axle gear would be my determining factor.
I want to run really deep gears in my 89 Caprice...so I've opted for the 4L80E...
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The only thing I don't like about the 4l60e is the high cost to build. I had a built 4l60e in my old camaro and loved it, but every time I drove the car hard I thought about how much it costs to have them built. Also it has been my experience that not every tranny shop knows what they are doing when it comes to anything other than a th350 or th400
