Strictly_Attitude
Strictly_Attitude New Reader
June 21, 2017 7:56 a.m.

I am building a road race chevelle I am just finishing up the engine it will be just shy of 600hp and around 580tq. I am looking for the cheapest options for a manual trans that will live behind this I will changing rear gear soon so I can gear rear for trans. My car already has a 700r4 in it so driveshaft is proper length for tko600. Just wondering what else it out there and is there any cheaper budget options.

dean1484 MegaDork
June 21, 2017 8:22 a.m.

An old school 4 speed. With that much hp and torque having 5 or 6 gears is nice but not really necessary especially if the vehical is a track car and not seeing much street service.

Friend of mine built a big block camaro and he put a four speed behind it because it was basically bullet proof and cheap. We called it the one shift wonder as he only had one up shift and one down shift running the entire road course at NHIS. He owned a well known ford speed shop and on line speed parts buisness catering to fords. He can basically have any trans he wants in his car. But as he put it with transmissions more gears are not always better.

RossD UltimaDork
June 21, 2017 8:31 a.m.

A good Super T-10 comes to mind first. Old Nascar take-offs are a good option if you're in that area of the country to have Nascar shops around.

Strictly_Attitude
Strictly_Attitude New Reader
June 21, 2017 9:13 a.m.

Good options will have to look into the 4 speed option.

SEADave HalfDork
June 21, 2017 10:33 a.m.

One possibility from a budget point of view is the LT1 T56 from a 93-97 F-body. These go for around $1,200 since most everyone wants the LSx style T56. If your 383 has a 1pc RMS you can just bolt it up with a standard LT1 pressure plate and clutch. Again, this is a budget choice, not the perfect solution.

Do you have a preference for or against using a hydraulic clutch? Will your racing/trackday organization require an SFI bellhousing?

Keep in mind that with a 4-speed like a Super T10 or Muncie, you need an external shifter & linkage which can add some $$$ unless you are really good at finding swapmeet deals.

wearymicrobe UltraDork
June 21, 2017 10:53 a.m.

M22 Severe duty build from AGC should be about 2.5K delivered and you pick the ratio's. Would live behind that car forever, they work in the 600hp range on drag cars so road racing is a piece of cake.

http://www.autogear.net/motorsports/

Dusterbd13 UltimaDork
June 21, 2017 10:55 a.m.

I went 3 speed truck trans. With a 1:1 final drivr, broad torque curve, and proper gearing you dever have to shift. And nobody wants them. So essentially free and indestructible to boot.

Huckleberry MegaDork
June 21, 2017 11:02 a.m.

https://shop.quaife.co.uk/chevrolet-chevy-ls-six-speed-rear-wheel-drive-sequential-gearbox

Apexcarver PowerDork
June 21, 2017 11:23 a.m.

Look into a Jerico 4 or 5 speed.

SeaDave's T-56 suggestion isnt going to be the most durable thing behind that power in a racing application. Look to the roundy round guys.

Nessumsar New Reader
June 21, 2017 11:26 a.m.

Tex Racing or G-Force used Nascar box. Should be under $2000 for a fairly fresh unit and it will never break at that power level.

GTXVette Dork
June 21, 2017 2:47 p.m.
Nessumsar wrote: Tex Racing or G-Force used Nascar box. Should be under $2000 for a fairly fresh unit and it will never break at that power level.

add the jerico to this mix and shop the used Nascar sites, you will want one for the road race cars because even the tranny's use different ratio's, but you CAN find a good M22 for a thou and if you aren't Too abusive it can last a while

Rotaryracer New Reader
June 21, 2017 6:31 p.m.
wearymicrobe wrote: M22 Severe duty build from AGC should be about 2.5K delivered and you pick the ratio's. Would live behind that car forever, they work in the 600hp range on drag cars so road racing is a piece of cake. http://www.autogear.net/motorsports/

Plus Juan. I'm putting a M23 Severe Duty in my A-Sedan Camaro this year, simply because I want something I can thrash on and have it last.

curtis73 PowerDork
June 22, 2017 1:36 p.m.

I have a TNET1247 Viper-spec T56 converted with GM front and rear goodies ready to bolt in, but with what I have in it, it would NOT be a budget option. It would also require a viper yoke because I kept the Viper output shaft and bored out a GM tailhousing.

I'll second the T10 idea.

You'll need to log in to post.

Also on Grassroots Motorsports

Mark Your Calendars: August 18 Is Wear Your Helmet to Work Day

3 hours ago in News

Wear your racing gear to work and win prizes.

Your Projects: Wide-Body, V8-Powered Porsche 944

4 hours ago in News

Wing, flares, V8 swap and more!

You Need This: A Real 1LE Camaro

5 hours ago in News

Chevy only built 62 1LE Camaro that year.

We're Back In Monterey for Car Week

14 hours ago in News

And so it begins, another trip to Monterey Car Week.

Little Car Show: Celebrating All Things Quirky and Small

1 day ago in Articles

As the name suggests, the Little Car Show is all about little cars.

Concours d’Lemons to Ruin Monterey Car Week Yet Again

1 day ago in News

What started as the anti-concours has transformed into a major event on the Monterey Car Week schedule.

You Need This: A Quite Eye-Catching Green Over Red Ferrari

1 day ago in News

Not your usual Ferrari color combo.

Your Projects: JDM Autozam AZ-1 Kei Car

1 day ago in News

What are the realities of importing a JDM kei car to the U.S.?

Bid on a New Helmet and Save Some Puppies and Kittens!

1 day ago in News

Four helmets will be auctioned off.

Tonight on Grassroots Motorsports LIVE! Lee Grimes of Koni Shocks

1 day ago in News

This may shock you, but suspension is arguably the most important part of going fast.

Classic Motorsports Monterey Welcome Party Welcomes 2000-Plus Gearheads

2 days ago in Articles

Last night we threw a party, and more than 2000 people came to celebrate.

You Need This: E46-Chassis BMW M3 for $6000!?

3 days ago in News

Could this M3 donate its heart to your next project?

OUR SPONSORS

Grassroots Motorsports Magazine

Subscribe Today

Also get your instant access to the digital edition of Grassroots Motorsports Magazine!

Learn More
g3FnqADDiGDvpUCDh8XpdjCNqrskeXSt