Close; they went from 115" to 112". Less than 1/8" in 1/25 scale, so adjusting each end 1/16" would be pretty much imperceptible. On the other hand, the AMT '69 Olds kits (Hurst Olds, Cutlass 442) should be a perfect fit and have the correct BOP details, not to mention much better details than the older Chevelle kits. With prices like they are now, you can probably find one of these cheaper than a Revell '68 Chevelle. (Also beautifully detailed, but needing the BOP tranny cross-member) The Monogram 70 Buick GSX, though 1/24, might trim down as well. Any way, very cool project! Looking forward to you build.