Photo:
Sicnag, CC BY 2.0, via Wikimedia Commons
Vehicles · Vintage American Muscle
Camaro Z/28 Cross-Ram · 1969
The 1969 Z/28 runs the DZ302 — a 302-cubic-inch (4.9L) solid-lifter small-block sized deliberately to clear Trans-Am's 5-litre ceiling, factory-rated at a conservative 290 hp when it actually made closer to 360. The over-the-counter cross-ram — a twin-four-barrel aluminum intake homologated for racing and dealer-fitted to relatively few cars — is what separates an ordinary Z/28 from a six-figure one.
The one to have: Documented dealer cross-ram · numbers-matching DZ302 (JL8 discs = bonus)
Specification
Engine
4.9L DZ302 V8
Solid-lifter small-block, 11.0:1 compression, dealer cross-ram twin 4-bbl
Output
290 hp
290 hp @ 5,800 rpm; 290 lb-ft @ 4,200 rpm; revs past 7,000 (~360 hp actual)
0-60 mph
~7.4 s
Quarter in ~14.8 s; roughly 130-135 mph top speed
Gearbox
4-speed manual
Muncie close-ratio (M21); M22 "Rock Crusher" available
The market
Verified sales on file
3
May 2024 – Jan 2025
Median sale
$125k
all tracked results
★ Cross-ram / JL8
$125k
median of 2 target-spec sales
Top result
$125k
Mecum · May 2024
Benchmarks: Standard Z/28s $85–135k · documented cross-ram/JL8 cars top-of-range (best combos historically $200k+) · Trend: steady
Know the real one
20,302 Z/28s in 1969 — but the cross-ram dual-quad was never an RPO: dealer-installed Trans-Am homologation hardware, provable only by period invoices + dated components
JL8 4-wheel disc brakes: 206 built
Verify: X77/X33 trim tag, DZ engine pad stamp, tank sticker/build sheet
~$3,700 as delivered; thin verified-sale record — the comp file builds slowly
Verified sales · ★ = target spec · foreign results converted to USD as noted
| Date | Venue | Year | Spec | Miles | Price | Loc | Note |
| Jan 2025 | Mecum | 1969 | std | 46,000 | $93,500 | FL | modified — base-market comp |
| May 2024 | Mecum | 1969 | cross-ram ★ | 11,000 | $125,000 | IN | RS Z/28 Cross-Ram, highly original, TMU |
| May 2024 | Mecum | 1969 | JL8 ★ | 7,000 | $125,000 | IN | Z/28 with JL8 4-wheel discs |
Where to hunt
Research file — market data verified through July 18, 2026.
Sources: individually observed results via Classic.com feeds, BaT, Cars & Bids, Mecum, RM Sotheby's,
Broad Arrow, Gooding, Collecting Cars, PCARMARKET and venue coverage, plus marque registries and factory press material.