RPOARCHIVE
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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.

    Pontiac · 1967-1982

    Firebird / Trans Am

    firebird · firebird sprint · firebird 326 · firebird 350 · firebird 400 · esprit · formula · formula 400

    227 option rows 227 RPO codes 16 model years
    0% Factory-verified
    • ✓ Factory-verified · 0
    • ● Confirmed · 67
    • ◑ Single-source · 156
    • ⚠ Disputed · 4
    1970s Pontiac Firebird Trans Am

    Applicable options

    Documented RPO codes

    Have a VIN? Decode it at DecodeThis
    Model year
    Code Option Years Notes & factory source Confidence
    331 Firebird (OHC-6 1-bbl) — model 1967
    Model sales code
    		 Single-source
    332 Firebird Sprint (OHC-6 4-bbl) — model 1967 — Single-source
    333 Firebird 326 — model 1967 — Single-source
    334 Firebird HO (326 HO) — model 1967 — Single-source
    335 Firebird 400 — model 1967
    Cowl five-group code `3F` = 400
    		 Confirmed
    061 Basic Group 1967 — Single-source
    062 Protection Group 1967 — Single-source
    064 Décor Group 1967 — Single-source
    071 Mirror Group 1967 — Single-source
    074 Lamp Group 1967 — Single-source
    342–345 Radios (AM, AM/FM variants) 1967 — Single-source
    351 Rear speaker 1967 — Single-source
    354 Stereo tape player 1967 — Single-source
    361 Heavy-duty air cleaner 1967 — Single-source
    374 Rear window defogger 1967 — Single-source
    382 Door edge guards 1967
    Same number = GTO package on 1964–65 A-body — sales codes are model-year specific
    		 Single-source
    391–394 Mirror options (remote, visor vanity…) 1967 — Single-source
    401–402, 421 Lamp options 1967 — Single-source
    431, 434 Seat belt options 1967 — Single-source
    441 Cruise control 1967 — Single-source
    442 Safeguard speedometer 1967 — Single-source
    451–458 Wheel discs / Rally wheels 1967 — Single-source
    462 Custom sports steering wheel 1967 — Single-source
    471–472 Steering/console options 1967 — Single-source
    474 Electric clock 1967 — Single-source
    481–482 Exhaust options (dual, tips) 1967 — Single-source
    491–492 Pinstripes 1967 — Single-source
    494 Dual horns 1967 — Single-source
    501 Power steering 1967 — Single-source
    502 Power brakes 1967 — Single-source
    504 Tilt steering wheel 1967 — Single-source
    514 Heavy-duty fan 1967 — Single-source
    521 Front disc brakes 1967 — Single-source
    524 Custom gearshift knob 1967 — Single-source
    531–532 Soft-Ray tinted glass (all / windshield) 1967 — Single-source
    544 Power convertible top 1967 — Single-source
    551 Power windows 1967 — Single-source
    572 Head restraints 1967 — Single-source
    582 Custom air conditioning 1967–1968
    Same code both years
    		 Confirmed
    584 Heater delete 1967 — Single-source
    621 Ride & Handling suspension 1967 — Single-source
    622 Space-saver spare 1967 — Single-source
    631, 633, 362 Floor mats 1967 — Single-source
    654 Folding rear seat 1967 — Single-source
    678 Heavy-duty battery 1967 — Single-source
    704 Tachometer 1967 — Single-source
    731 Safe-T-Track axle 1967 — Single-source
    734 Economy axle 1967 — Single-source
    738 Performance axle 1967 — Single-source
    781 Turbo Hydra-Matic 1967 — Single-source
    782 2-speed automatic 1967 — Single-source
    783 3-speed manual, column 1967 — Single-source
    784 4-speed manual, floor 1967 — Single-source
    786 3-speed manual, floor 1967 — Single-source
    HC / HD E70×14 red-stripe / white-stripe tires 1967
    Tire codes
    		 Single-source
    341 Firebird (OHC-6 1-bbl) — model 1968
    Billing-history engine group "341" = Sprint
    		 Single-source
    342 Firebird Sprint — model 1968 — Single-source
    343 Firebird 350 — model 1968 — Single-source
    344 Firebird 350 HO — model 1968 — Single-source
    345 Firebird 400 — model 1968 — Single-source
    347 Ram Air 400 (special order) — Ram Air I, then Ram Air II mid-year 1968
    Confirmed by sales-manual list + billing-history codes page
    		 Confirmed
    348 400 HO engine option 1968 — Single-source
    321 Basic Group 1968 — Single-source
    322 Protection Group 1968 — Single-source
    324 Firebird Décor Group 1968 — Single-source
    331 Mirror Group 1968
    Was "Firebird model" in 1967 — codes shift year-to-year
    		 Single-source
    332 Lamp Group 1968 — Single-source
    351 Turbo Hydra-Matic 1968 — Single-source
    352 2-speed automatic 1968 — Single-source
    353 3-speed manual, column 1968 — Single-source
    354 4-speed manual, floor 1968 — Single-source
    355 HD 3-speed manual (V8) 1968 — Single-source
    356 HD 3-speed manual (6-cyl) 1968 — Single-source
    358 Close-ratio 4-speed 1968 — Single-source
    361 Safe-T-Track axle 1968 — Single-source
    364 Economy axle 1968 — Single-source
    368 Performance axle 1968 — Single-source
    382–385 Radios 1968 — Single-source
    391 Rear speaker 1968 — Single-source
    394 Stereo tape player 1968 — Single-source
    404 Rear defogger 1968 — Single-source
    412 Door edge guards 1968 — Single-source
    414 Dual horns 1968 — Single-source
    421–422, 424 Mirrors 1968 — Single-source
    431–432 Seat belts 1968 — Single-source
    434 Tachometer 1968 — Single-source
    441 Cruise control 1968 — Single-source
    444 Rally gauge cluster 1968 — Single-source
    452, 453, 458, 461 Wheel discs / Rally II wheels 1968 — Single-source
    462, 471 Steering wheels 1968 — Single-source
    472 Console 1968 — Single-source
    474 Electric clock 1968 — Single-source
    481–482 Exhaust options 1968 — Single-source
    492 Remote deck lid release 1968 — Single-source
    504 Tilt steering 1968 — Single-source
    514 HD fan 1968 — Single-source
    521 Front disc brakes 1968 — Single-source
    524 Custom shift knob 1968 — Single-source
    531–532 Soft-Ray glass 1968 — Single-source
    544 Power top 1968 — Single-source
    551 Power windows 1968 — Single-source
    554 Custom trim 1968 — Single-source
    564 Power seat adjuster 1968 — Single-source
    572 Head restraints 1968 — Single-source
    582 Air conditioning 1968 — Confirmed
    604 Folding rear seat 1968 — Single-source
    621 Ride & Handling suspension 1968 — Single-source
    631–632 Floor mats 1968 — Single-source
    634 Adjustable (Koni-type) shocks 1968 — Single-source
    652 Luggage lamp 1968 — Single-source
    671–672 Underhood / ignition lamps 1968 — Single-source
    681–682 HD radiator / fan 1968 — Single-source
    692 HD alternator 1968 — Single-source
    701 HD battery 1968 — Single-source
    731 HD air cleaner 1968
    Was Safe-T-Track in 1967 — renumbered
    		 Single-source
    754 Shoulder belts 1968 — Single-source
    W53 Sprint OHC-6 4-bbl (230 cid, 215 hp) 1969
    Firebird Sprint
    		 Confirmed
    L30 350 2-bbl V8 1969
    Also on 1970s corporate lists (350 2-bbl)
    		 Confirmed
    L76 350 HO 4-bbl V8 1969
    Note: L76 = 350 4-bbl again on 1975–77 lists
    		 Confirmed
    W66 400 4-bbl (Firebird 400) 1969
    Same UPC later = Astre/Sunbird Formula package
    		 Confirmed
    L74 400 HO / Ram Air III 1969–1970
    Std engine of 1969½–1970 Trans Am
    		 Confirmed
    L67 Ram Air IV — required 4-speed/auto, Safe-T-Track, 3.90 axle 1969
    Firebird 400 / Trans Am; 1970 RA IV became LS1
    		 Confirmed
    WS4 Trans Am Performance & Appearance package — $725 1969
    689 coupes, 8 convertibles; L74 std
    		 Confirmed
    Y88 Basic Group (radio, mirrors, clock…) 1969
    NOT the 1978 Gold SE — code reuse
    		 Single-source
    Y86 Décor Group 1969 — Single-source
    WS6 Power Assist Group (auto, power steering, disc brakes) 1969
    NOT the 1978+ performance package — code reuse
    		 Single-source
    WS5 Turnpike Cruise Group 1969 — Single-source
    WS8 Rally Group (Rally II wheels, gauges, handling) 1969 — Single-source
    U63 / U69 / U58 AM / AM-FM / AM-FM stereo radio 1969+
    Corporate UPCs, unchanged through 1970s
    		 Confirmed
    A31 Power windows 1969+
    Corporate UPC
    		 Confirmed
    A46 Power driver seat 1969 — Single-source
    C06 Power convertible top 1969 — Single-source
    C60 Custom air conditioning 1969+
    Corporate UPC
    		 Confirmed
    Y96 Ride & Handling suspension 1969 — Single-source
    N98 Rally II wheels 1969+ — Confirmed
    N30 / N34 / N33 Deluxe wheel / Custom Sport wheel / tilt column 1969+
    N33 tilt confirmed on 1975 list
    		 Confirmed
    U30 Rally gauge cluster w/ tach 1969 — Single-source
    W63 Rally gauge cluster w/ clock 1969+
    Also on 1975 list
    		 Confirmed
    UB5 Hood-mounted tachometer 1969–1972 — Single-source
    WS4 Trans Am package/model code 1970–1981
    Listed by Trans Am Country & 78ta as the T/A model RPO
    		 Confirmed
    L22 250 cid I6 (Chevrolet) 1970–1975
    Base Firebird
    		 Confirmed
    L30 350 2-bbl V8 1970–1974
    Base/Esprit
    		 Confirmed
    L65 400 2-bbl V8 1970–1973
    Esprit/Formula
    		 Single-source
    L78 400 4-bbl V8 1970–1978
    Formula 400; T/A 6.6 base 400 in ’77–78
    		 Confirmed
    L74 400 Ram Air III (345 hp) 1970
    Std Trans Am, opt Formula; 3,108 T/As
    		 Confirmed
    LS1 400 Ram Air IV (370 hp) 1970
    SPO special-order, not regular RPO; 88 Trans Ams
    		 Confirmed
    L75 455 4-bbl 1971–1976
    Formula/Trans Am (455 HO ’71–72 was LS5); last 455 in 1976
    		 Confirmed
    LS5 455 HO (335 hp gross / 310 net) 1971–1972
    Std Trans Am ’71–72, opt Formula
    		 Confirmed
    LS2 Super Duty 455 (SD-455, 310/290 hp net) — $550 (’73) 1973–1974
    Trans Am & Formula only; sales code 35X; ’73 engine block code X; 252 built ’73 (T/A), 943 T/A + 58 Formula ’74
    		 Confirmed
    M20 / M21 / M22 4-speed wide / close ratio / HD close ratio 1970–1974
    M22 behind SD-455 & 455 HO
    		 Confirmed
    confirmed (M20/M21), single-source (M22)
    M38 / M40 Turbo Hydra-Matic 350 / 400 1970s — Single-source
    G80 Safe-T-Track differential 1970–1981 — Confirmed
    D80 Rear air spoiler 1970–1981
    Std Trans Am; birdfire's 1975 table instead labels D80 "custom cushion steering wheel" and N65 "rear air spoiler" — likely transcription error
    		 Disputed
    Y96 Handling suspension 1970s — Single-source
    U30 / W63 Rally gauges w/ tach / w/ clock 1970s — Confirmed
    UB5 Hood tachometer 1970–1972 — Single-source
    L22 250 I6 1975
    Base/Esprit
    		 Confirmed
    L30 350 2-bbl V8 1975 — Confirmed
    L76 350 4-bbl V8 1975–1977 — Confirmed
    L78 400 4-bbl V8 1975–1978 — Confirmed
    L75 455 4-bbl V8 1975–1976
    "455 HO" badge ’75, plain 455 ’76; last big-inch Firebird
    		 Confirmed
    M38 3-speed manual floor shift 1975
    birdfire lists M38 twice (also as THM) — one is an error
    		 Disputed
    M20 / M21 4-speed / close-ratio 4-speed 1975 — Confirmed
    G80 Safe-T-Track axle 1975 — Confirmed
    U63 / U69 / U58 AM / AM-FM / AM-FM stereo 1975 — Confirmed
    U80 / U57 Rear speaker / stereo tape 1975
    birdfire labels both "rear seat speaker"
    		 Single-source
    C24 Recessed wipers 1975 — Single-source
    D35 Sport mirrors (LH remote) 1975 — Single-source
    D55 / D58 Front console / rear console 1975 — Confirmed
    D34 RH visor vanity mirror 1975 — Single-source
    AK1 Custom seat belts 1975 — Single-source
    T63 Headlamp warning buzzer 1975 — Single-source
    NK3 Formula steering wheel 1975–1981 — Confirmed
    P01 / P02 / P06 Deluxe wheel covers / custom finned covers / trim rings 1975 — Single-source
    N98 Rally II wheels w/ trim rings 1975 — Confirmed
    P05 Honeycomb wheels 1971–1976 — Confirmed
    B80 / B85 / B96 / B84 / B93 Moldings: roof drip / window sill / wheel lip / body side / door edge guards 1975 — Single-source
    JL2 Power front disc brakes 1975 — Confirmed
    JL1 Pedal trim package 1975 — Single-source
    N33 Tilt steering wheel 1975 — Confirmed
    WW7 Trans Am hood decal ("screaming chicken") — $55 1975–1981 — Confirmed
    WW8 Rally gauges w/ clock + tachometer 1975 — Single-source
    VJ9 California emissions 1975 — Single-source
    A31 Power windows 1975 — Confirmed
    AU3 Power door locks 1975 — Single-source
    A01 / A02 Soft-Ray glass all / windshield 1975 — Single-source
    C60 Custom A/C 1975 — Confirmed
    BS1 Added acoustical insulation 1975 — Single-source
    UA1 HD battery 1975 — Single-source
    C49 / C50 Electric rear defroster / rear defogger 1975 — Single-source
    K05 Engine block heater 1975 — Single-source
    K45 / K97 HD air cleaner / HD alternator 1975 — Single-source
    B32 / B33 Front / rear floor mats 1975 — Single-source
    D98 Accent stripes 1975 — Single-source
    Y92 Lamp group 1975 — Single-source
    N65 Space-saver spare 1975
    See D80 dispute note above
    		 Disputed
    UR1 Fuel economy vacuum gauge 1975 — Single-source
    U35 Electric clock 1975 — Single-source
    U18 Speedometer w/ km + clock 1975
    Canada
    		 Single-source
    C09 Cordova vinyl top 1975 — Single-source
    Y90 Custom trim group 1975 — Single-source
    Y82 50th Anniversary Limited Edition (black/gold, Hurst T-tops) 1976
    Trans Am; carried into ’77 as Special Edition
    		 Confirmed
    W50 Formula Appearance Package (two-tone, "FORMULA" rockers) 1976–1981
    Firebird Formula
    		 Confirmed
    W72 "T/A 6.6" 400 high-output (200 hp ’77, 220 hp ’78–79) 1977–1979
    Trans Am/Formula, 49-state; Wikipedia extends W72 usage to the ’80–81 301; 78ta treats it as 400-only
    		 Disputed
    confirmed (77–79), disputed (80–81)
    L78 400 4-bbl "6.6 Litre" (180/185 hp) 1977–1978
    Base T/A engine
    		 Confirmed
    L80 Oldsmobile 403 6.6L 1977–1979
    Auto-only; CA & high-altitude T/A
    		 Confirmed
    L27 301 2-bbl V8 (Pontiac) 1977, 1979
    Base/Esprit
    		 Confirmed
    L37 301 4-bbl V8 (incl. ’79–81 applications, 4.9 EC) 1979–1981 — Confirmed
    LG3 305 2-bbl V8 (Chevrolet) 1977–1981
    Base/Esprit; on corporate lists — Firebird-specific citation thin
    		 Single-source
    LU8 Turbo 301 (4.9 Turbo, 210/200 hp) 1980–1981
    Trans Am/Formula; std on ’80 Pace Car & ’81 NASCAR edition
    		 Confirmed
    WS6 Special Performance Package — 15×8 snowflake wheels, larger sway bars, quicker steering; 4-wheel discs from ’79 1978–1981
    Trans Am (& Formula); NOT the 1969 WS6
    		 Confirmed
    WS7 Special Performance Package w/ rear drum brakes 1979
    Trans Am
    		 Confirmed
    W50 Formula Appearance Package 1976–1981
    Formula
    		 Confirmed
    Y81 Special Edition black/gold, w/o T-tops 1977
    Trans Am ("Bandit")
    		 Confirmed
    Y82 Special Edition black/gold, w/ Hurst T-tops 1976–1978
    Trans Am
    		 Confirmed
    Y88 Gold Special Edition (Solar Gold) 1978
    Trans Am; NOT the 1969 Y88 Basic Group
    		 Confirmed
    Y84 Special Edition black/gold (Fisher T-tops) 1978/79–1981
    Trans Am; sources differ on ’78 vs ’79 start
    		 Confirmed
    Y89 10th Anniversary Trans Am (silver) 1979
    7,500 built
    		 Confirmed
    Y85 Turbo Trans Am Indy Pace Car (’80) / NASCAR Pace Car (’81) 1980–1981 — Confirmed
    W60 Skybird appearance package (blue) 1977–1978
    Esprit
    		 Confirmed
    W68 Redbird appearance package 1978–1979
    Esprit
    		 Confirmed
    W73 Yellowbird appearance package 1980
    Esprit
    		 Confirmed
    W66 Formula (model option RPO) 1970s–1981
    Per Trans Am Country model-RPO list; W67 = Esprit
    		 Single-source
    NK3 Formula steering wheel 1975–1981 — Confirmed
    WW7 Trans Am hood bird decal 1975–1981 — Confirmed
    N90 Cast aluminum "snowflake" wheels 1977–1981
    Included w/ WS6
    		 Single-source
    CC1 Glass hatch roof (T-tops, Fisher) 1978–1981 — Single-source

    Source document: pontiac/firebird-trans-am.md. Rows marked — record an option the factory offered whose RPO code is not documented in the consulted sources.