1969 · Chevrolet · United States

1969 Chevrolet Impala SS427: down to one option

Only the SS427 (RPO Z24) remains; the reported count ranges from 2,425 to about 2,455.

United States · researched through 2026-09-22

1969 Chevrolet Impala SS 427 hardtop coupe in white Photo: dave_7 from Canada, CC BY 2.0, via Wikimedia Commons

For 1969 only RPO Z24 SS427 remained of the Super Sport lineup, offered on the 16437 sport coupe, 16447 custom coupe, and 16467 convertible, with no plain Super Sport option left on the full-size line at all. The Impala SS Registry gives 2,445 built without any breakdown by body style, while the Classic Industries production chart gives 2,425 and Wikipedia's fourth-generation Impala article gives approximately 2,455 for the same package.^1,2,3

This record's own conflict entry carries all three figures, 2,445, 2,425, and approximately 2,455, with full attribution rather than settling on one, since none of the three sources cites the underlying Chevrolet record its own count would be checked against. An unpublished lead adds a fourth number: a ClassicCars.com Journal auction-listing article describes a 1969 Impala SS 427 convertible as "one of 2,144 built," a figure this record's own note treats as plausibly a transposition of the registry's 2,445 rather than a genuinely independent count, and one not entered into the conflict entry itself because the listing article cites no source of its own for the number it prints. Context figures from the Classic Industries chart give 777,000 Impalas of all bodies, including convertibles and wagons, and 14,415 full-size convertibles for the year; this record's own production note again flags that the best missing primary source, the GM Heritage 1969 Chevrolet vehicle information kit's own production data, could not be retrieved due to a website access error.²

This record's own engine note states that no 1969 rating was found in any fetched source for the L36 427 used in the SS427, leaving that entry's rating blank; a second 427, the L72, is documented at 425 hp, carried over from its 1968 availability according to Wikipedia. Chevrolet's own 1969 specifications book, however, is more informative about the SS427 specifically: it carries a dedicated equipment column labeled "RPO Z24 SS 427 option" and lists two 427s for the full-size line as a whole, the 335-hp LS1 and the 390-hp L36, ratings this record's own key facts carry directly from that factory document even though the SS427-specific engine entry elsewhere in this record has no rating recorded, a gap this record does not fill by inference from the specifications book's separate figures.^1,4

The Z24 SS427 option itself carries no install count of its own in this record beyond the disputed production figures already described. Chevrolet's regular-production-options list documents four further engines and one option for the year: the LS1 427-cu-in V8 at 335 hp, the L36 427-cu-in V8 at 390 hp, the L66 396-cu-in V8 at 265 hp with a two-barrel carburetor, the L48 350-cu-in V8 at 300 hp, and the N10 dual exhaust option. Two engine suffix codes are documented for the 427s specifically: for the LS1, LB marks a three- or four-speed manual car with a four-barrel carburetor and LE marks a Turbo Hydra-Matic car, also with a four-barrel; for the L36, LA marks a three- or four-speed manual car with a four-barrel. No paint colors, no interior trim codes, no specifications, and no performance-test data were found in an accessible documented source for the year, so those sections carry nothing further in this record beyond the production, engine, and option data already described.

Fact sheet · 1969 · United States

The numbers

1969 Chevrolet Impala SS427 — Only the SS427 (RPO Z24) remains; the reported count ranges from 2,425 to about 2,455.

Coverage: Partial — researched sections are shown; missing ones are not yet sourced. Researched through 2026-09-22.

Every figure is labeled with how sure we are. Reported means a manufacturer, registry, or reference figure we cite but have not reconciled against factory records ourselves. Disputed means credible sources disagree and both are shown. Rows are separately scoped; don't add them together unless the note says they make up a total.

Key facts

SS427 is the only Impala SS for 1969.¹
Chevrolet's 1969 specifications book carries a separate equipment column for 'RPO Z24 SS 427 option' and lists two 427s for the full-size line: the 335-hp LS1 and the 390-hp L36.

Production

By package or option
What was counted	Count	Basis	Status
RPO Z24 SS427¹ SS427 · sport coupe 16437, custom coupe 16447, convertible 16467 · 427 · not stated Registry gives no breakdown by body style. See conflicts.	2,445	sold, model-year	Disputed

Totals
What was counted	Count	Basis	Status
Impala Super Sport total (SS427 was the only Super Sport content offered in 1969)¹ Super Sport · sport coupe, custom coupe, convertible · not stated Chevrolet dropped the plain Super Sport (Z03-style) option for full-size cars after 1968; the registry's own 1969 page states 'Only the RPO Z24 SS427 was available in 1969,' so unlike 1968 (which combines Z03 + Z24 into a separate 'ss-all' total) there is no second package to add -- this total simply restates the Z24 figure at group 'total' rather than 'package,' since Z24 already was the entire Super Sport offering that year. See conflicts for the competing 2,425 (Classic Industries) and approximately 2,455 (Wikipedia, also independently repeated by a 1969-specific marque site) figures; none of the three shows its underlying Chevrolet record.	2,445	sold, model-year	Disputed

Context
What was counted	Count	Basis	Status
Impala series incl. convertible and wagons² all full-size · not stated	777,000	built, model-year	Reported
Convertible, all full-size² all full-size · not stated	14,415	built, model-year	Reported

Best missing primary source: GM Heritage 1969 Chevrolet vehicle information kit (403).

Engines

Engine	Factory rating	Availability	Built
L36 · 427 V8¹ 427 cu in		SS427	Not yet sourced
L72 · 427 V8⁴ 427 cu in · 4-barrel	425 hp (SAE gross)	optional	Not yet sourced

Ratings are the manufacturer's advertised figures under the standard shown (SAE gross before 1972, SAE net after). They are not dyno results, and gross and net ratings can't be compared directly.

Options and packages

Code	Option	Price	Installed
`Z24`RPO	SS427¹	—	Not yet sourced
`LS1`RPO	335-hp Turbo-Jet 427 V8 (15-16000)	—	Not yet sourced
`L36`RPO	390-hp Turbo-Jet 427 V8 (15-16000)	—	Not yet sourced
`L66`RPO	265-hp Turbo-Jet 396 V8, 2-barrel	—	Not yet sourced
`L48`RPO	300-hp Turbo-Fire 350 V8	—	Not yet sourced
`N10`RPO	Dual exhaust (154-156-164-16600)	—	Not yet sourced

Identification

427 engine suffix codes (1969 full-size): 427 RPO LS1: LB (3- or 4-speed, 4-bbl) and LE (Turbo Hydra-Matic, 4-bbl); 427 RPO L36: LA (3- or 4-speed, 4-bbl).

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Where the sources disagree

1969 SS427 production

2,445¹
2,425²
approximately 2,455³

All three shown with attribution; none cites its underlying Chevrolet record.

Identification

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Same model year

Also in 1969

AMC AMX The two-seat AMX's biggest year: 8,293 cars by the enthusiast production table, with a mid-year run of Big Bad colors and 52 Hurst-built Super Stock AMXs for NHRA drag racing.
AMC Javelin Production fell to 40,675, but the 1969 Javelin added the Big Bad colors, with 2,282 cars painted blue, green or orange, plus the Mod package.
AMC Rebel and Rebel Machine A base and SST Rebel with no convertible. The Big Bad colors were test-marketed through the New York–New Jersey 'Raider' hardtop. This is host-car context for the 1970 Machine.
Buick Riviera Another record at 52,872 Rivieras; 5,272 had the GS handling option.
Buick Skylark Gran Sport, GS and GSX GS production fell to 12,465, and the GS 400's Stage 1 package became a factory option while Stage 2 stayed a dealer item.
Buick Wildcat 67,453 Wildcats; the last year of the 430.
Chevrolet Chevelle and Malibu SS Super Sport became RPO Z25 option equipment, available for 1969 only on the 300 Deluxe coupes as well as Malibu sport coupe, convertible and El Camino.
Chevrolet Chevy II and Nova SS is RPO Z26 per the source, with L48, L34 and L78 engines. Enthusiast-compiled production: 251,849 cars; Super Sport 17,564.
Chevrolet El Camino SS SS 396 became RPO Z25 option equipment, orderable on the V8 Malibu El Camino (13680); the El Camino share of the 86,307 Z25s is not separately published.
Dodge Charger The second-generation Charger's peak-sales year added the SE package and the aero-bodied Charger 500 and Charger Daytona homologation cars, whose production totals are still disputed.
Dodge Coronet R/T and Super Bee The Super Bee added a hardtop body and the 440 Six Pack, while the 440-powered Coronet R/T continued as the upscale hardtop and convertible.
Dodge Dart GTS, Swinger and Demon The low-priced Swinger 340 arrived and outsold the GTS by more than two to one (16,637 against about 6,700), while a 375 hp 440 joined the GTS options.
Ford Fairlane The Fairlane hardtop was the intermediate line's volume leader, while the Fairlane 500 SportsRoof shared its body with the Torino GT, Cobra and Talladega.
Ford Ranchero GT The Ranchero GT carried Torino GT trim; 1,658 GTs were built, per reference-site counts in the Standard Catalog lineage.
Ford Thunderbird Fifth-generation Thunderbird; only the whole-line production total was found.
Ford Torino The Torino GT carried most of the line's volume, the 428 Cobra Jet was in its first full year, and the Talladega aero fastback was built in a short run at Atlanta to homologate a NASCAR nose.
Mercury Comet and Cyclone The Cyclone fastback came as Cyclone and Cyclone CJ, mid-year Spoilers carried Dan Gurney and Cale Yarborough graphics, and the extended-nose Cyclone Spoiler II was built at Lorain for NASCAR homologation.
Mercury Cougar A longer, restyled Cougar added a convertible, the Boss 302 arrived in April, and the Eliminator replaced the GT as the performance Cougar.
Mercury Marauder and S-55 The Marauder name returned on a full-size hardtop, and the X-100 carried the 360 hp 429 four-barrel as its only engine.
Oldsmobile Cutlass, 4-4-2 and Hurst/Olds The 4-4-2 kept its 400 while the second Hurst/Olds, in white and gold with a 380 hp 455, went into production at about 900 cars.
Plymouth Barracuda and 'Cuda The last A-body Barracuda introduced the 'Cuda name as a stripped performance package with a standard 340, alongside Formula S and a midyear 440.
Plymouth GTX, Belvedere and Satellite The GTX shared the Road Runner's new Air Grabber scoop and Super Track Pack but sold 15,602 cars, fewer than a fifth of the cheaper Road Runner.
Plymouth Road Runner A convertible joined the coupe and hardtop, the 440 Six Barrel arrived at mid-year, and the Road Runner reached its production peak of 84,420.
Pontiac Firebird and Trans Am The last first-generation Firebird, and the mid-year debut of the Trans Am package: 697 cars by the commonly published count, eight of them convertibles.
Pontiac GTO Three four-barrel 400s under one nameplate, and the first year of the Judge package built around Ram Air power.
Pontiac Grand Prix A new 118-inch Grand Prix with the SJ and a 390 hp 428 HO: production more than tripled to 112,486.
Pontiac Tempest and LeMans The last year of the OHC Sprint six and the 350 HO.
Rambler American and SC/Rambler AMC and Hurst put the 315-hp 390 V8 and a close-ratio four-speed into the compact Rambler hardtop for NHRA F/Stock. 1,512 were built, and the split between the two paint schemes is disputed.