1966 GTO Tire/Wheel combo.

[gearheads78]

Before: with 245/45R17 on 17x7 and 17x8


After: with 255/35R18 on 18x9 up front and 305/35R18 out back on 18x11s


The new fronts are about 0.75 inches smaller in diameter than the old fronts and the rears are 0.75 inches larger than the old ones.

Is this what you were looking for?

Jon

Jon.....Looked good even with the Cragars but kicks ass now

[Droolguy]

Thanks guys, those last few pictures were exactly what I was looking for...

Jon, love your car.

One question though, why don't you tuck the front tire in the wheel well a bit w/ a 1" front drop? It would fill much better IMHO. You might get some rub (could move back to the 245s, the extra 10mm of contact patch gives you negligible performance gain).

Cars are 99% personal preference though, just curious.

[Roadbuster]

Jon.....Looked good even with the Cragars but kicks ass now

Thanks for the compliments, gearheads78!

Thanks guys, those last few pictures were exactly what I was looking for...

Jon, love your car.

One question though, why don't you tuck the front tire in the wheel well a bit w/ a 1" front drop? It would fill much better IMHO. You might get some rub (could move back to the 245s, the extra 10mm of contact patch gives you negligible performance gain).

Cars are 99% personal preference though, just curious.

Droolguy,
That was literally an after shot. I just got the rims on the car. No suspension adjustment.

The front has been adjusted down a hair so that the top of the tires front and rear just tuck. And the addition of the front wheel trim makes it look lower.

Why not an inch lower? The frame center crossmember is a little short of 3 inches from the ground and the headers are lower. I need some clearance for suspension compression or if I get a flat.

That's a 2x4 under the car.
I do plan on driving it hard so I need to fix the headers, but the crossmember is the main limiting factor. If it were a show car I could go lower but for the street this is it for me.

[Droolguy]

Ahh, I was just wondering... thanks for humoring me.

Also as a side note... you have a *really* clean undercarriage from what I can see. Kudos.

Mine looks, well... not so clean. Its something I need to work on.

[Roadbuster]

No problem!

That pic looks like what I started with! You even have the same headers!
BTW nobody makes an exhaust gasket for a 4 bolt collector flange! I had to make new ones out of sheet material. Any documentation that says who made them?

[gearheads78]

Ahh, I was just wondering... thanks for humoring me.

Also as a side note... you have a *really* clean undercarriage from what I can see. Kudos.

Mine looks, well... not so clean. Its something I need to work on.

Thats nothing an afternoon and little elbow grease can't fix ...OK maybe a couple afternoons LOL

[Droolguy]

Sorry, no documentation on the gasket...

But normally I just cut my own... its fairly easy if you have a Dremel.

This is where I got my material, been a while since I used them though, you don't exactly go through the stuff very fast...
http://www.superiorseals.com/sheeting.asp

Hope that helps some.

[Roadbuster]

I made my own gaskets with material from summit. I was looking for who made the headers. I can't find anything on mine.

[gearheads78]

I made my own gaskets with material from summit. I was looking for who made the headers. I can't find anything on mine.

I used to see come of the old Cyclone headers that had 4 bolts

[Droolguy]

Ahhh, in that case no. I have no idea where the headers came from.

I will drop a line to the guy I bought the car from and see if he remembers.

[MonzaRacer]

I use DAP/Dow Corning 50 year Clear silicone in caulking tube and no gasket for header flanges and collectors and never have any leaks. Got that tip from Sam Jones of Jones Engineering,,, the builder of sprint car engine for Steve Kinser.

[2008fx4]

these are a 19/20 combo on a 66 chevelle - but the rears are too wide to run without a minitub.

19x10 285/35 and 20x12.5 335/30

[MIGOAT]

[Roadbuster]

Nice looking car!

[RYU]

I think I saw this car for sale on CL. Nice car!

Anyway, my question is... why is there so much neg camber on the front? Is that to fit the 10" or is it owner's pref?

I know the bottom pic looks like it's on full droop but I can't imagine you would need to run that much camber on the top pic unless the front A-Arms are the non-adjustable type?

these are a 19/20 combo on a 66 chevelle - but the rears are too wide to run without a minitub.

19x10 285/30 and 20x12.5 335/30

[2008fx4]

at ride height the camber is gone. car handles like a dream the way its aligned now.

[RYU]

at ride height the camber is gone. car handles like a dream the way its aligned now.

Good to know. I plan to bag my 66 someday hope it looks as nice as yours.