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Old 05-08-2018, 12:25 PM
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Default 19/20's on a 71 Chevelle?

Hey guys,

I am looking for some input on wheel sizes. The car is a 71 Chevelle, the suspension consists of Speedtech front upper and lower control arms and Viking coilovers front and rear. The car has stock wheel tubs.

I would like to run a staggered 19" front and 20" rear setup. I have seen a few people post pictures, but nothing that mentioned any widths or backspacing.

Has anyone had experience with this combo that could give me some direction?

Thanks.
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Old 05-09-2018, 04:37 PM
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Probably not many 19/20" Chevelle guys here. Probably more 18/19". But, I have 20's all the way around on my 72 Chevelle and I don't recall the backspacing on the rear. I can call HRE and ask them from my serial #'s if you'd like. On the rear, I have a 345/30/20 on a 13" wide wheel. If you're running the stock chassis then my rear backspacing probably won't work for you because I have an aftermarket chassis and the car is mini tubbed as well to accept the 13" wheel.
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Old 05-10-2018, 10:49 AM
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I'm running 18x9's w/5" backspace (0 offset) and 255/35/18's on the front and 20x10's w/5.75" backspace (+6 offset) & 305/30/20's on the rear.

Just a suggestion but here's a combo that will should work fine w/o clearance issues, on your 71,
19x9 w/5.5" backspace (+12 offset) and 255/35/19 tire (3.5" sidewall) 26" tall. Another option would be a 275/30/19 (3.3" sidewall) 25.5" tall
20x10 w/5.75" backspace (+6 offset) and 295/30/20 tire (3.5" sidewall) 27" tall. Another option would be a 305/30/20 (3.6" sidewall) 27.2" tall
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Last edited by USAZR1; 05-10-2018 at 10:52 AM.
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Old 05-10-2018, 12:14 PM
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This '69 GTO has 285-19s up front and 345-20s out back, rolling on our ExtReme Frame.



More HERE

Alan's Chevelle before he went to 18s for racing- 18's up front and 20's out back. This is with the factory frame and Speedtech control arms.





Guy's '68 Chevelle, 18's up front and 20's out back. This is with the factory frame and Speedtech control arms.



Although some folks do the 18/20 we like to stick with no more than one wheel size stagger if possible to try to keep sidewall heights visually consistent. I think you're on the right path with 19s and 20s for a cruiser. As has been said when we go racing we usually stick to 18s.
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Old 05-10-2018, 06:12 PM
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18/20 combos are way more common and one of the main reasons is the high cost of 19" wheels. It's very hard to find suitable 19's, for less than $1,000/wheel. If I could find the wheel I like in a 19x11 w/+6 or +8 offset, for around $500-600/each or less, I would be seriously interested. Until then, I'll most likely go with 17x11's or 18x11's with a 315 tire, on the rear of my 70. Those sizes are available in my price range, with styles I want.

The problem I have with 20" wheels, is too much tire diameter. That creates as many problems as excessive width can.
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Old 05-20-2018, 01:00 PM
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19s and 20s look great on that size of a car and we typically do 9s and 10s with stock wheelwells.

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Old 06-24-2018, 12:02 AM
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Quote:
Originally Posted by 214Chevelle View Post
On the rear, I have a 345/30/20 on a 13" wide wheel. If you're running the stock chassis then my rear backspacing probably won't work for you because I have an aftermarket chassis and the car is mini tubbed as well to accept the 13" wheel.
I wish I could squeeze that large a wheel/tire combo under my 70 Elco. I know an 11" width wheel and 315 tire will fit under the car, w/o major mods.
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Last edited by USAZR1; 07-13-2018 at 04:38 PM.
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