I plan on getting some skinnies and 10" for the back. I checked center line homepage and it didn't list any 10" convo pro but it was listed in the summit catalog.
1- Is a 10" with 7.5" backspace available?
2- Whats the backspace for the front wheels ( I have LS1 front brakes and spindle)?
3- Is a spacer required for the front?
4- Is machining the rear calipars required?
If a convo pro as per my requirement is not available, my second choice would be draglites, bogarts are not an option.

Thanks in advance

 

Centerline WILL NOT make a 10" Convo Pro. I even talked to them about making a custom set and they said no.

I think I ran something like a 2.25" b/s on my LT1 car. Fit like a glove. Not sure if it'd be the same on the LS1 spindles or not. I tried them on an '00 Firehawk and the calipers barely hit the rim. No grinding anywhere and no spacers w/ the LT1 cars though.

If you do go w/ a Draglite, you'll have to do a TON of grinding on the calipers if you have an LS1 or LS1 brakes. I've got several friends w/ Draglites on their LS1 cars and they all spent several hours w/ the grinder on the fronts alone.

 

I've just checked summits online catalog and they list about 7 numbers of 15x10 convo pros but non has 7.5" backspace . So what are the other options?

 

The 15x10's the list are w/ a shallow b/s(3.75, 4", etc.). They'd stick WAY out(like 3" is you put them on a 4th gen.

Your other options would be Centerline's Auto Drags (JeffB has them on his car), Weld Pro Stars or Weld Draglites.

Except for the Auto Drags, Centerline doesn't make an offset more than 5" for our car. I had Convo Pros for a year and really liked the way they looked. I needed more tire and 11" wide slicks look goofy on a 7.5" wheel.