Z06'N

What are the largest tires you can fit front and rear on a 1966 stock suspension small block coupe.

5thvet

Here's some info in this thread.

http://forums.corvetteforum.com/c1-a...e-size-c2.html

gschaerer

We have a '66 convertible tat recently came out of a frame off complete restro. Wanted tires as close to original (7XXx15). Put on 205 75 R15 and no nrubbing. Love the tires. Just one input, others will chime in.

Rokndad

I run 215-70R/15 on my 63 with no problems. And they look relatively wide on the car.

TexVette66

66 conv,215-60 front, 225-60 rear, no rub

DucatiDon

A lot depends on the wheel, more so than the tire itself in most cases.

Using stock steel wheels or K/Os? Then the above are correct.

Using aftermarket larger/wider wheels is a whole different story.....its mosty trial and error on each individual car.

redsplitwindow

Depends if you are running a 15,16,17" etc with a 17x7 with 4" backspacing everyone is running a 225x50x17 thats what i run using
a American Racing Torque Thrust rim

Rokndad

These are mounted on the aftermarket true knockoffs. No issues.

capevettes

I have been running 215-70-15 on my 65 with knockoffs. No rubbing.

zpletcher

I would like to try those sizes next time... I have 215 70 15's now

but they are not available in V rating anymore...

Are yours on knock offs?

Cheers, Zale

66since71

they aren't cheap ($230/ea) and have to be special ordered, but P-4000, Z rated Pirellis are still available 215/70-15.

Harry

rk1966

One thing that you guys are forgetting is the spare tire. I own since new a 1966 Corvette, and if you have a flat, then be careful what size your tires are, as that well is very tight even for the original spare tire. My car still has the original "General" spare tire that just fits. I remember having Sears fiberglass belted tires that were very close in size to the originals, but they would've go up into the spare tire well, so I had to carry that flat in the passenger seat to get it home. Now I have an original set of Michelin "made in France" radials 195.15X with no fender rub, but I've never tried them in the spare tire well, and there's a good chance they may not fit, or just fit. The spare tire well is thin fiberglass, and they weren't thinking bigger tires.

irwiny

225 60 15 - is what I'm running and my spare tire holder doesn't close cleanly.

rk1966

Yeah you got nice tires, and you're lucky it goes into the well at all (60 profile made the difference) but I wanted the higher profile 75, as my car sits low enough now, even with increasing the riding height with shims and washers. You have to be real careful going up on ramps or breaking over driveways, as you can bottom out easily. Usually I hit my exhaust and break a exhaust donut, so I always wanted that extra height tires.

chevahaulic

After I replaced the disc brake calipers I found the wheels my 66 came with are from an older model. I found a nice set of 7" rally wheels, caps, and trim rings on CL for a little over a hundred dollars . The rims fit without interference and appear to tuck under the stock quarters. I am thinking of going with 205-75 R15s. Hopefully they will clear everything without any suspension mods.

rk1966

My wheels are original stock, and the calipers need deep wheels, so you did alright, and it's mainly if they clear the calipers without any rubs, and then watch the front wheels when you turn hard and see if they hit your fenders. Sometimes on a sharp hill turn they can rub the fenders front or back. Mine had a very slight rub, but not any major problems and they'd never crack the fenders.
Like I said, many of these different tires won't go into the spare tire well located under the gas tank.

LB66383

I'm running 235/55x16s on my coupe, on 7" American TTII rims.