Other 4/5-speed options for Mopars?

[66 Dartman]

What other 4-speed options are out there for a stout street/strip Mopar? 450+HP

I am aware of the Keisler 5-speed. I'm thinking a little more afordable...

I've heard mention of Tremec, but not gotten any specifics on what trans.

Any thoughts or experiences to share?

[Doug Wilson]

I've done some research on this, and it looks like any 5 or 6 speed is in the $3000 + range. A local wrecking yard is selling an A body small block automatic to 4 speed(A833) stick conversion for $800, which includes everything.

One of the things to be aware of is that most of the crankshafts on automatic cars don't have a pilot shaft hole for the trans input shaft, and you need to deal with that.

[ehostler]

Originally posted by 66 Dartman
I've heard mention of Tremec, but not gotten any specifics on what trans.

The Keisler conversion uses the Tremec TKO, which is superior to the Tremec T5. It wouldn't take long for a 450hp engine to destroy a T5.

If you don't like the cost issue of the Keisler, then I would recommend going with an A-833.

[66 Dartman]

Ok, I didn't know that it was a Tremec. What are the best ways to beef up a 23-spline 833? Do they even need to be beefed up?

[66 Dartman]

Ok, I didn't know that it was a Tremec. What are the best ways to beef up a 23-spline 833? Do they even need to be beefed up?

[Doug Wilson]

The A833 is the strongest 4 speed ever put in an American car. People are driving them, unmodified, behind 600 to 700 horsepower engines.