Tire Size Help

[72_Chevelle_SS]

I am new to the forum. My name is Kyle and I live in Northern California.

I have had my 1972 Chevelle SS since I was 13 years old. (12 years now)

I would like to make the car a little more road worthy, and be able to take it to Sonoma Raceway, Laguna Seca, and also do some drag racing with it.

I am looking into the following upgrades:

-SC&C Touring suspension package
-Baer disk brakes
-Rushforth Wheels

I need help with deciding which wheel and tire setup to go with.

19x10 in the rear, 19x8 in the front?
20x10 in the rear, 19x8 in the front?

Which tire sizes can I run with these setups? I want to be able to start pricing tires and looking into my options.

What tire sizes and brands are y'all running on your 68-72 Chevelles?

Thank you for any and all positive input.

[Rod]

for performance and racing tires I would stay with the 19" set up or run an 18" setup you will not get a competitive tire in a 20....look at what the winners are running and the sizes then look at rims

[AU Doc]

If you've already decided on Rushforth wheels, give Jason a call. I bought wheels from him, and he answered a TON of questions about sizing, fitment, and appearance. He's great to work with!

[raustinss]

theres a few different posts re. tire sizes on 68-72 a bodies . you can very easily do a 275 front and 315 rear

[TheJDMan]

To be honest, it sounds to me like you need to do a whole lot more research and really focus in on what exactly you want to do with this build. The very nature of your question indicates that you do not have a clear plan. For example, 20" wheels and Sonoma are not really a good match. 20" wheels are more compatible with Friday cruise nights. If you catch my meaning. Before I physically started my build on Dust Off I spent nearly a year and a half just reading forums like PT, Lat-G and looking at vendor web sites (listed down the right hand side of this page) to educate myself on the options I had to choose from. Everything you asked about has been covered here on PT more than once in the past and the great thing is it is all still here and searchable.

[csouth]

To be honest, it sounds to me like you need to do a whole lot more research and really focus in on what exactly you want to do with this build. The very nature of your question indicates that you do not have a clear plan. For example, 20" wheels and Sonoma are not really a good match. 20" wheels are more compatible with Friday cruise nights. If you catch my meaning. Before I physically started my build on Dust Off I spent nearly a year and a half just reading forums like PT, Lat-G and looking at vendor web sites (listed down the right hand side of this page) to educate myself on the options I had to choose from. Everything you asked about has been covered here on PT more than once in the past and the great thing is it is all still here and searchable.

This ^^^

I'm running Bridgestone s04 Pole Position:
18x9F with 275/35
19x10R with 295/30

[Turbo6inKY]

Pretty much what TheJDMan said.

You said you wanted to race. You want as much sidewall as you can get. That means 18" wheels. And that's only because all the good street tires are only available in 275-315 cross sections in an 18" wheel.

So get the template from your favorite wheel shop, measure the car, and get yourself some 18" wheels.

The End.

[andrewb70]

theres a few different posts re. tire sizes on 68-72 a bodies . you can very easily do a 275 front and 315 rear

I run 275/35-18s in the front and 295/35-18s in the rear. From what I can tell, it would be a challenge to run a 315 in the rear (mostly impossible). But as they say, YMMV....

Andrew

[raustinss]

I run 275/35-18s in the front and 295/35-18s in the rear. From what I can tell, it would be a challenge to run a 315 in the rear (mostly impossible). But as they say, YMMV....

Andrew

Andrew is correct ...the 295's are easy...anything wider depends on A backspacing B amount car is lowered and, C if you ever plan on having a couple 200 lb fellas in the back seat . If the car is lowered and you hit a few good bumps your tires will rub . This is due to the taper of the top of the wheel wells. depending on your budget and fab skills ABC performance sells a mini tub kit allowing for 335 plus tires they also have widened wheel well tubs for sale too . If your getting that crazy go toss some 315's on the front and massage the front inner fenders and your set . Lmao always easier when you say "just do this " and spend someone else's money for them . Cheers and good luck

[72_Chevelle_SS]

I’ve spent years lurking on forums. Never had the money to do what I’ve wanted until now which is why I’m reaching out.



I understand most of this information is searchable, but finding specific answers to specific questions regarding a specific Year/Make/Model is like finding a needle in a haystack.

I’m not sure how asking about tire fitment indicates that I lack a plan, but thanks for the responses anyways.

A kind gentleman private-messaged me with sound advice rooted in personal experience with 70-72 Chevelles.

[andrewb70]

I’ve spent years lurking on forums. Never had the money to do what I’ve wanted until now which is why I’m reaching out.

I understand most of this information is searchable, but finding specific answers to specific questions regarding a specific Year/Make/Model is like finding a needle in a haystack.

I’m not sure how asking about tire fitment indicates that I lack a plan, but thanks for the responses anyways.

A kind gentleman private-messaged me with sound advice rooted in personal experience with 70-72 Chevelles.

And what was the advice?

Andrew

[gnx7]

I'm doing an 18x10 front and 18x11 rear.
https://www.pro-touring.com/threads/...eels-and-Tires