[Angrybird 12]

Originally Posted by gto406

Respectfully disagree with you AB12 - and to clarify I am talking about the 1969 Camaro models - not the 2014!

If I wanted to go around a corner (aluminum block or not) it would be with the 302-DZ motor, not the ZL1.

Check the rear-axle ratio on the ZL1's. I would hazard a guess most of them are north of 4.xx:1. That isn't a road-course setup (3.90's or 3.73's yes) 4.10/4.11 or 4.33 definitely NO.

From Super-Chevy magazine:

"It was the dominance of the Cam Am engine that inspired Fred Gibb Chevrolet to suggest to Chevrolet that they develop a package for the Camaro that would accommodate the 427 ZL1 for drag racing.
...

Working with Chevrolet Engineering's Vince Piggins, Gibbs ordered 50 1969 Camaros through the COPO program in the summer of 1968. They started with the L78 Camaro SS with 14x7 wheels, cast-iron exhaust manifolds and F41 heavy-duty suspension. The option was tagged 9560 with the ZL1 all-aluminum engine and a choice of either the M40 Turbo Hydra Matic, M20 wide ratio four-speed, M21 close ratio or heavy service M22 "Rockcrusher" close ratio four-speed (Gibb later deleted the M22, feeling it wasn't worth the cost). A special 15-pound nodular flywheel was used with stick models. Only one rear-axle ratio was specified, a 4.10:1 differential with heat-treated ring and pinion and Posi-traction limited slip. The steel ZL-2 cold air induction hood was included, along with heavy duty springs with five leaf rears, heavy duty radiator, transistorized ignition, power front disc brakes and F70x14 white lettered tires.

Read more: http://www.superchevy.com/features/c...#ixzz2pjptxGb2"

FYI... The ZL1 was originally designed to provide a 'weight advantage' for Camaro over the Hemi-powered cars from Chrysler in drag (likely Stock/Super-Stock NHRA classes).

Oh ok, I thought you were comparing the current ZL1 with the 69 version. My mistake.