Tire size question

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Jun 25, 2016 | 01:33 PM

56panelford

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From: northwestern Ontario

Tire size question

I was wondering what the best overall tire size to run with a 351w with C6 trans and 3.73 gear ratio..? How tall of a tire basically ?

Jun 25, 2016 | 10:22 PM

truckeemtnfords

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From: Fallon,NV & Bainbridge OH

I am partial to something in the 28-30" range, at least for the rear. Maybe an inch or two shorter in the front. Seems to fill the Wells nice.

Jun 26, 2016 | 09:34 AM

56panelford

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From: northwestern Ontario

I was wondering if I should be looking for a different gear set. 28 inch tall tire is the range height I was thinking of just wondering if the engine is going to be screaming at 60 miles per hour..

Jun 26, 2016 | 09:46 AM

Chilly Willy in Cali

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The calculator shows a rpm of 2758 @ 60 mph

Jun 26, 2016 | 09:54 AM

56panelford

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From: northwestern Ontario

I guess that's not as bad as I thought I'd be revving at..

Jun 26, 2016 | 10:04 AM

Chilly Willy in Cali

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I'm running a 3.03 with a C4. Should be good but I haven't had it at highway speed yet. I'd rather be under 2000 at cruise. I might go AOD.

Jun 26, 2016 | 10:09 AM

56panelford

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From: northwestern Ontario

I was thinking I should have went with the AOD as well but trying to keep my expenses down on this build and using what I had. I guess I can always make changes in the future if this becomes more of a daily driver..

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Jun 26, 2016 | 10:28 AM

56panelford

Thread Starter

FTE Legend

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From: northwestern Ontario

Next spring should see me rolling, that's the plan anyways..

Jun 29, 2016 | 05:12 PM

#10

petemcl

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From: Northville, MI

Yes, with a 30" tire at 60 mph with a 4.10:1 rear axle and an overdrive transmission (4th gear .70:1) you should turn 1929 rpm. That is pretty good as it keeps the low end grunt and gives lower noise and better fuel economy at higher speed.

Tire Height cross reference: https://tiresize.com/height-chart/

Speed Calculator: Tire Size, RPM, Speed, and Differential Ratio Calculator