I have a 99 z28 auto ,stock suspension , i was looking at a set of replica 09 zr1 wheels and the sizes for front are 18x8.5 and the rears are 19x10 will these fit ok stocker look pretty close to the trailing arms already, if they will fit then i will just need to pick out a color, chrome, hyper silver or black, my car is pewter so leaning toward the black, thanks for any input oh yea the offset for the fronts are 56mm and i can get the rears in 56mm or 79mm thanks

 

Those are some poor offsets for a wheel on a fbody. I dislike that high of an offset any how, tucks the wheel in too much, but for anything above 54mm you will need the BFH mod (big f'in hammer).

 

So what offsets will i be needing, thanks for the info

 

For Vette wheels 54mm in the rear should be the maximum. Some people are able to run 56mm vette wheels without any modification, but most cannot, so it is possible but not likely. For the front, with a 8.5 inch wide rim you can run up to 45mm offset.

You can look here: OE Wheels LLC for replicas. Most of the vettte wheels available have a 54mm or 56mm offset, and like said before its a bit of risk if you dont want to hammer your fenderwell.

 

So a 40mm offset for both would be safe

 

Yes a 40mm offset would be fine for a 8.5" front and 10" rear

 

Nice thanks for the info

 

Since this thread kind of pertains to my questions I'll post here. I've seen plenty of Camaros with 19" c6 rims, some even with a lower suspension. I'm wondering how they managed that if I can't even find 18" ones that fit the off sets stated above.

Like this guy. I hate this guy, I want those wheels. and it looks like his car sits like 1-2 inches lower as well.

http://www.ls1tech.com/forums/attach...-side-view.jpg

I wouldn't want to go 19 because of performance, and the roads I drive on are not that great, but nonetheless I haven't seen any 18's in c6 chrome wheels that match those fitments.

but man those 19's look good...

 

this is EXACTLY what i want to do to mine but chrome.

btw mine are 18x9.5 275/40/18 on all four corners. 56mm offset, no spacers needed or BFH.

 

good info here Tire Sizes For 4th Generation F-Body Wheels