How wide tires do I need?

[erlendch]

I got a '66 with LS7 engine (505 hp). How wide tires should I use to get the power to the ground without too much spinning. Local tire shop recommended 215/65/15 in front and 235/60/15 in the back. I also should let you know that I trying to keep a sleeper look for my Chevelle, so as stock looking wheels as possible, while still having decent traction.

Thanks for your advice!

[XH29N0G]

I think it is going to be the rubber compound that will matter more than the width.   

[Aero426]

Assume you are asking about fitment for a '66 Chevelle, not a Charger?

[Lennard]

I got a '66 with LS7 engine (505 hp). How wide tires should I use to get the power to the ground without too much spinning.

With 505 hp it will depend on your right foot. Any size street legal tire will get shredded.

[skip68]

I'd get the widest that will fit correctly and look good and a soft compound. 

[1974dodgecharger]

A 66 Chevrolet with a ls7 has tones of power u should be able to fit a 345/45/20  size tire back there no mods at all direct fit.   

[JR]

If you're set on 15s and want a sleeper look, how about 8-9 inch wide wheels with street legal drag radials on them?  The soft compound will be much more beneficial than a wider wheel with a normal street compound would.

I doubt you drive in the rain much or need the cornering ability so that's the route I'd go in this case.

[RallyeMike]

 

235/60/15 is a short tire. Tall tires, just like fat tires, provide more rubber contact with the ground and better traction.