1st Gen Z/28 info cont.

[Mykdiver]

Version A: Dated September 26, 1968
Z/28 Special Performance Package: Model 12437 only. Includes 302" V8 engine, dual exhaust with deep-tone mufflers, special front and rear suspension, rear bumper guards, heavy-duty radiator and temperature-controlled fan, quick ratio steering, 15 x 7 rally wheels, E70 x 15 special white lettered tires, 3.73 ratio axle and special rally stripes on hood and rear deck. Available only when 4-speed trans., power disc brakes are ordered. Positraction rear axle recommended.
Price 458.15
Note: no tach required

Version B: Dated October 18, 1968
Z/28 Special Performance Package: Model 12437 only. Includes 302" V8 engine with bright accents; chambered dual exhaust system; Z/28 emblems on grille, front fender and rear panel; special front and rear suspension; rear bumper guards; heavy-duty radiator and temperature-controlled fan; quick ratio steering; 15 x 7 wheels with trim rings; E70 x 15 special white lettered blackwall tires and special paint stripes on hood and rear deck. Avail. only when 4-speed transmission, power front or four-wheel disc brakes are ordered. Positraction rear axle recommended.
Price 458. 15
Note: chambered exhaust part of option. Notice JL-8 (four-wheel discs) recommended

Version C: Dated January 2, 1969
Z/28 Special Performance Package: Model 12437 only. Includes 302" V8 engine with bright accents; dual exhausts; Z/28 emblems on grille, front fender and rear panel; special front and rear suspension; rear bumper guards; heavy-duty radiator and temperature-controlled fan; quick ratio steering; 15 x 7 wheels with trim rings; E70 x 15 special white lettered blackwall tires and special paint stripes on hood and deck. Avail. only when tachometer gauge or special instrumentation, 4-speed trans., power front or four-wheel disc brakes are ordered. Positraction rear axle recommended.
Price 473.95
Note: tach now required; no longer has chambered exhaust as a standard feature

Version D: Dated April 1,1969
Z/28 Special Performance Package: Model 12437 only. Includes 302" V8 engine with bright accents; dual exhausts; Z/28 emblems on grille, front fender and rear panel; special front and rear suspension; rear bumper guards; heavy-duty radiator and temperature-controlled fan; quick ratio steering; 15 x 7 wheels with special center caps and trim rings; E70 x 15 special white lettered blackwall tires; auxiliary front valance panel and rear deck spoiler plus special paint stripes on hood and rear deck. Available only when tachometer gauge or special instrumentation, 4-speed transmission, power front or four-wheel disc brakes are ordered. Positraction rear axle recommended.
Price 506.60
Note: spoilers now required

Version E: Dated September 18, 1969
Z/28 Special Performance Package: Model 12437 only. Includes 302" V8 engine with bright accents; dual exhausts with bright tips; Z/28 emblems on grille, front fender and rear panel; special front and rear suspension; rear bumper guards; heavy-duty radiator and temperature-controlled fan; quick ratio steering; 15 x 7 wheels with special center caps and trim rings; E70 x 15 special white lettered blackwall tires; auxiliary front valance panel and rear deck spoiler plus special paint stripes on hood and rear deck. Available only when tachometer gauge or special instrumentation, 4-speed transmission, power front disc brakes are ordered. Positraction rear axle recommended.
Price 522.40
Note: notice chrome tail pipes standard on or about May 19, 1969.

Version F: Dated November 3, 1969
Z/28 Special Performance Package: Model 12437 only. Includes 302" V8 engine with bright accents; dual exhausts with bright tips; Z/28 emblems on grille, front fender and rear panel; special front and rear suspension; rear bumper guards; heavy-duty radiator and temperature-controlled fan; quick ratio steering; 15 x 7 wheels with special center caps and trim rings; E70 x 15 special white lettered blackwall tires; auxiliary front valance panel and rear deck spoiler plus special paint stripes on hood and rear deck. Available only when tachometer gauge or special instrumentation, 4-speed transmission, power front disc brakes are ordered. Positraction rear axle recommended.
Price 522.40
Note: These are used for comparison. There are many documented cars which do not fall into these guidelines. Anything could have happened on the assembly line.

Other changes occurred in the '69 model year. Early '69 Z/28s used a Y55 top post battery, but Chevy went to a side post Y77 in February. A few months later this was replaced by the Y89, which used the same bolt size for the positive and negative terminals.
The Z/28 got single piston calipers on the disc brakes, as opposed to the four piston calipers in '67 and '68. You could also order the factory 4 wheel disc brake systerm, RPO JL8, but there were problems with parts availability during the year, and there were several stop orders issued, delaying delivery of the cars.
The console and guages were the same as used in 1968, but the woodgrain pattern was different. In 1969 rosewood replaced walnut on all the woodgrain accents.
The stripes were larger on the rear deck in '69 than on previous years. You could also order your Z/28 with the stripes deleted.

Info courtesy of the "Camaro Homepage".