I've been an owner of modern muscle cars ( Roush Mustang, Challenger SRT 392), and have had a bunch of other muscle cars when i was a kid. Decided to buy a 1965 F85 442 from a dealer in Florida. I used a local inspector and thought I was good to go. Turns out the inspector snd dealer do a lot of work together. Anyway, while the the car is a true vin-confirmed 442, it is beat to death and has a replacement but also beat to death 350 Rocket in the engine bay, and the 2-speed Jet-Away auto trans is pretty bad as well.

I am having a new Olds 455 built rated at 425HP. My first question ( many will follow) is, what trans can I mate with the 455? Best case scenario would be to drop in a 4-speed manual, but I think that may be too costly. Option two would be to drop in a 3, 4, or even 5 speed trans. Any thoughts on an auto trans that will mate up with the 455?

Thanks

Frontierman

Any input is appreciated.

 

T400, built T350, built T2004r. Tremec 5 or 6 speed. All depends on the torque output of your engine. Who's building the engine?

 

While your having the engine built, if the crankshaft isn't drilled for a manual transmission input shaft this would be the time to have it done. Most 455 crankshafts don't have this but a competent shop can cut it before assembling the engine. Here's a link to an old thread that shows the factory spec's to cut for a pilot bearing or bushing.

https://classicoldsmobile.com/forums...ns-crank-9757/

 

If a 4-speed manual is what you really want, you should do it. You're in for a pretty big bill anyway, so you might as well go all the way and end up with something you'll be happy with. No fitment issues with Muncie M-20/21 as they were OEM supplied. All you need to do is get a shifter, pedal set-up, clutch and linkage as well as making sure the crank is drilled for it as noted above.

 

That's impossible, not a stand alone model. No way to verify a 1965-1967 442 with its VIN number.

THM400 is the ideal match. It takes away all the guess work.

 

^^^THIS. There is nothing in the VIN that will allow you to "prove" the car is a real 442. The cowl tag WILL have a code that will prove it, assuming this is not a Fremont-built car.

 

Lansing built cars with 4V prove its a 442

 

Eddie's Performance in NJ

 

My Fire Wall Plate has 4HV