430 rear gears

[67Satty]

I like tall tires for this sort of thing. They seem to be easier to hook. Smaller tires once they are spinning hard tend to take more time to make them recover. At least they seem that way to me. I ran 275-60-15 BFG Comp TA's on my very mild motor (nearly stock) 340 Cuda with the 56's and it usually blew em off if I hammered it off the line (street) but all I had to do was stick it in 2nd and they would hook up so I pretty much put the shifter in second from the get go and let it go into second right away. Thought about putting in a manual valve body because of that but never did.

Good point! Everyone gets hung up on how wide the tire is for traction but going up another inch in diameter gives you more footprint than going an inch wider. So, to use me as an example, I'm running 3.91s with a 9" x 27" tall tire. I plan on going to a 9" x 28" or 29" tall tire to get more footprint (because I can't fit any wider than 9" in my wheelwells anyway) and moving my gear up to at least a 4.10 to make up for the taller tire. But these Hoosier Quicktime Pro D.O.T.s are wearing like iron so it might be awhile before I try that experiment. And yeah, I'm in the slow lane on the freeway on the way to the track.

 

[Lenny Arsenault]

Thanks guy's lots of great Information here. I have a 65 satillite with 10" custom fit steel wheels on them with BFG tires P275/50 R15 101 S M+S (street tires and rims) I am thinking widest stock rim would be 8" I am told its best to match the width of the rim with along with the width of the tire if you going to race. Lets say maybe like an 8" rim and a 9" tire. Does this sound right to guys otherwise you might not get the full tire surface grabing the road. These are things I don't know because I have never raced at a drag strip only a few times on the street. I would like to get gears ,tires, and rims for this summer. Opinions please. thanks

 

[mr. b]

on my 63 I have a 8 inch wheel with 275 60 15s with a 410 gear at 60 it tacks around 3000 rpms not a long distance cruiser but it is drivable I drive every where but for the Mopar Nats I trailer it

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forgot to say when I race it slicks are 26 x10 on a 8 inch rim hooks pretty good

 

[67Satty]

Thanks guy's lots of great Information here. I have a 65 satillite with 10" custom fit steel wheels on them with BFG tires P275/50 R15 101 S M+S (street tires and rims) I am thinking widest stock rim would be 8" I am told its best to match the width of the rim with along with the width of the tire if you going to race. Lets say maybe like an 8" rim and a 9" tire. Does this sound right to guys otherwise you might not get the full tire surface grabing the road. These are things I don't know because I have never raced at a drag strip only a few times on the street. I would like to get gears ,tires, and rims for this summer. Opinions please. thanks

Yeah, ideally you want a wide enough rim matched to the width of the tire for the best footprint for best traction. I think some NHRA stock guys who are limited to a 9" width slick even run them on a 10" rim. If you look at the websites of Hooiser and Mickey Thompson, they will give you a recommended rim width for each tire width. I've run 9" slicks on 7" and even 6" rims but 8" rims are better for a better footprint without having to air down so much. The wider rim does push the sidewall out a little more so make sure you have room. I had to roll my quarter panel lips on my '67 when switching from a 7" to a an 8" rim but it was worth it because my 60' times went down just by changing the rim width.

 

[Blownmopar71]

Mostly a 1/4 mile at a time but I do hit cruise nights and some shows!

 

[Furyous]

With a car that heavy I would say go for the 4:30's. Rolling mass will make a car feel like it is towing a trailer.

I for one do not think about fuel mileage in my old cars. Why? If I wanted an old car that got mpg it would be a /6 car.

I drive my old cars for fun, I have a nice boring new truck that does the daily work. Is this car your daily driver? Do you drive city or highway mostly? If it isn't your daily driver I would not worry with it. If it is put some 3.91 in it and let it ride.

 

[Lenny Arsenault]

Mostly for fun of course I do go to cruise nights once in a while but, usually within about 30 miles or so. Not much city or highway driving just driving to family, friends, cruises and hopefully drags once in a while. I have a 1965 satillite stock transmission cable shift on the floor question is will it hold up to 490 HP , 537 ft. lbs. of torque and 4.30 gears. Opinions

 

[67 B-body]

Mostly for fun of course I do go to cruise nights once in a while but, usually within about 30 miles or so. Not much city or highway driving just driving to family, friends, cruises and hopefully drags once in a while. I have a 1965 satillite stock transmission cable shift on the floor question is will it hold up to 490 HP , 537 ft. lbs. of torque and 4.30 gears. Opinions

I say yes... It will hold up.
The steeper gear should make stress even less on the trans, because your multiplier of the ratio creates less effort to turn the yoke.

 

[Lenny Arsenault]

Thanks 67 B Body I was hoping I would get that question answered in favor of the tranny being tuff enough to run those 4:30 gears. I believe the cam and 3000 stall converter specs has me recommended for around 4:10 so I would think it would be fine to go up a notch.

 

[67coronetman]

I say run them... I am putting those sam gears in my car soon.

 

[Coyoteduster]

The 430's will be fun on the street, but like some have already pointed out they will get old quick on the freeway. Your exhaust system comes into play here as well because I run 391's on 28" tires on my 69 Road Runner and 100 miles at a stretch is about all you want.

Huh?

What?

What did you say?

:icon_smile:

 

[67coronetman]

Yes i do agree with what this man has said but speaking for my self my car doesn't see a lot of Freeway use at all if i am going to drive that far i will use a car hauler plus i got rid of my BLOWMASTERS the worst mufflers ever for interior noise they SUCK in my opinion i use Dynomax super turbo mufflers great sound but i can now talk to the person next to me in the car & because of how my set is i am using the 4:30 gears don't get me wrong my car is driven lots on the road but i didn't set my car up for freeway use.. Plus i have two friends that drive over 200 miles to the mopar nats on 4:30 or 4:56 gears i guess its whatever you feel good about doing with your car..

The 430's will be fun on the street, but like some have already pointed out they will get old quick on the freeway. Your exhaust system comes into play here as well because I run 391's on 28" tires on my 69 Road Runner and 100 miles at a stretch is about all you want.

Huh?

What?

What did you say?

:icon_smile: