1966 442 Gear Ratio

442 Guatemala · 07-01-2007, 10:07 PM

Hello im restoring my 1966 442 with 400 engine. Im having a ground up restoration and I wil like to build a nice street car.

Im going to overhaul the engine, bored at .030 and I will like to add a edelbrock manifold, carburetor and headers.

I have a Mounci transmission but I dont know wich one M20, M21 or M22? and I think I have a 3.90 Gear Ratio, But I think this combination is not good for a street car, I think the car is going to be in a hig RPM range with the 3.90 gear ratio.

So what is a good gear ratio for a street car?
Is better to change the gear ratio or buy a new transmission, if yes wich one is recommended to keep the hurst shifter?

thanks

Alex

yogi442 · 07-03-2007, 07:34 PM

I run 3.42's in my 66 442 and does fine on low end and top end.

thegooddocolds · 07-25-2007, 01:27 AM

I'd keep that low rear end; try it, you might like it! Unless you are going to be taking it on long freeway trips, the neck jerk action of those low gears can't be beat!

Flamed67 · 10-25-2008, 02:02 PM

I run a stock 330 2 barrel carb in one of my olds with a 3.90, talk about a blast to drive. Will lay rubber for an entire block

and thats with the stock 2 speed automatic. A little hard on fuel but who cares when your having fun. I can still run 65 miles per hour on the interstate with no worries.

Jamesbo · 10-25-2008, 02:15 PM

You may find this link informative

http://www.yearone.com/updatedsingle...nfo/muncie.htm

07-01-2007, 10:07 PM	#1 (permalink)
442 Guatemala Member Join Date: May 2007 Posts: 26	1966 442 Gear Ratio Hello im restoring my 1966 442 with 400 engine. Im having a ground up restoration and I wil like to build a nice street car. Im going to overhaul the engine, bored at .030 and I will like to add a edelbrock manifold, carburetor and headers. I have a Mounci transmission but I dont know wich one M20, M21 or M22? and I think I have a 3.90 Gear Ratio, But I think this combination is not good for a street car, I think the car is going to be in a hig RPM range with the 3.90 gear ratio. So what is a good gear ratio for a street car? Is better to change the gear ratio or buy a new transmission, if yes wich one is recommended to keep the hurst shifter? thanks Alex

10-25-2008, 02:02 PM	#4 (permalink)
Flamed67 Junior Member Join Date: Oct 2008 Posts: 2	Keep the 3.90 gears Fun Fun Fun!!!!! I run a stock 330 2 barrel carb in one of my olds with a 3.90, talk about a blast to drive. Will lay rubber for an entire block and thats with the stock 2 speed automatic. A little hard on fuel but who cares when your having fun. I can still run 65 miles per hour on the interstate with no worries.

10-25-2008, 02:15 PM	#5 (permalink)
Jamesbo Moderator Join Date: Jun 2008 Location: Atlanta, Georgia Posts: 729	You may find this link informative http://www.yearone.com/updatedsingle...nfo/muncie.htm __________________ 69 H/O 69 442 convertible 69 Vista Cruiser 69 442 hardtop "Growing old is mandatory,Growing up is optional"

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07-03-2007, 07:34 PM	#2 (permalink)
yogi442 Senior Member Join Date: Dec 2004 Location: Blaine Wa Posts: 77	I run 3.42's in my 66 442 and does fine on low end and top end.

07-25-2007, 01:27 AM	#3 (permalink)
thegooddocolds Junior Member Join Date: Jul 2007 Posts: 11	I'd keep that low rear end; try it, you might like it! Unless you are going to be taking it on long freeway trips, the neck jerk action of those low gears can't be beat!