Oldsmobile · 1961-1982

Cutlass / 4-4-2

cutlass · cutlass s · cutlass supreme · 442 · 4-4-2 · f-85 · f85 · hurst/olds

115 option rows 112 RPO codes 20 model years
54% Factory-verified
  • Factory-verified · 62
  • Confirmed · 44
  • Single-source · 7
  • Disputed · 2
1970 Oldsmobile 4-4-2

Applicable options

Documented RPO codes

Have a VIN? Decode it at DecodeThis
Model year
Cutlass / 4-4-2 RPO codes
Code Option Years Notes & factory source Confidence
— (no code documented) Jetfire: turbocharged 215 CID aluminum V-8 ("Turbo-Rocket", 215 hp), Turbo-Rocket fluid injection 1962–1963
Jetfire was marketed as its own F-85-based model, not an RPO
Confirmed
confirmed (car), n/a (code)
— (no code documented) Cutlass: upgraded F-85 coupe with 185 hp (later 195 hp) 215 V-8, bucket seats 1961–1963
Trim series rather than coded option
Confirmed
confirmed (car), n/a (code)
B-09 "Police Apprehender Pursuit" — the original 4-4-2 package: 310 hp 330 CID 4-bbl V-8, 4-speed manual, dual exhaust, HD suspension, rear stabilizer bar, dual-snorkel air cleaner, 4-4-2 badges 1964
Any F-85/Cutlass except wagons; $285.14; ~2,999 sold (~10 four-door sedans documented)
Confirmed
"4-4-2" (order-form designation) 4-4-2 package: new 400 CID V-8, 345 hp; meaning now 400 CID/4-bbl/dual exhaust 1965
F-85/Cutlass option
Single-source
W-29 4-4-2 package (attribution to 1964–65 disputed) (1964–65?)
Olds FAQ 442 page: "In 1964 the 4-4-2 was ordered with option code B09… In 1965 the order code was 4-4-2… In 1966, W-29 signified the 4-4-2 option" — but the same FAQ's option-code page says W-29 was used 1964–1967
Disputed
W-29 4-4-2 Performance Package 1966–67
F-85/Cutlass option
Confirmed
L-69 400 CID tri-carb (3×2-bbl), 360 hp — 4-4-2 performance engine 1966
Manual trans only from factory; prerequisite for W-30
Confirmed
L-78 400 CID 4-bbl high-compression — the standard 4-4-2 engine 1966–67
350 hp
Confirmed
W-30 Outside Air Induction (OAI) package: ram-air via bumper scoops, hot cam, trunk-mounted battery 1966–67
1966: tri-carb only, 54 factory cars + ~93 dealer "Track Pac"; 1967: 502 factory cars, first automatic (W-O-G TH-400); no convertibles either year; red inner fenders from 1967
Confirmed
L-77 High-compression V-8 performance engine (400 CID in F-85) 1966–67
Police-oriented; dual exhaust w/425 in 1966 full-size
Confirmed
M-13 / M-14 HD 3-speed manual, column / floor shift 1966–67
F-85
Confirmed
M-20 / M-21 4-speed manual wide-ratio / close-ratio, floor shift 1966–67
4-4-2
Confirmed
M-31/M-32/M-33/M-34 Jetaway automatic variants (fixed/variable stator) 1966–67
M-32 with L-77/L-78 in 1966
Confirmed
M-40 Turbo Hydra-Matic (TH-400) 1966–67
First TH-400 4-4-2s; W-O-G code on 1967 W-30
Confirmed
G-80 Anti-Spin differential 1966–67
Confirmed
G-69 Rear stabilizer shaft 1966–67
Confirmed
N-10 / N-11 Dual exhaust (N-11 with L-66/L-77/L-78) 1966–67
Confirmed
J-52 Power front disc brakes 1967
First-year discs
Confirmed
K-66 Capacitor (UHV) discharge ignition 1967
Confirmed
U-21 Rally Pack gauges 1967
Confirmed
W-30 Force-Air (OAI) 400 CID package: under-bumper scoops, 4" ducts, red inner fenders, D heads, 360 hp 1968–69
442 only; manual brakes std (328° cam); posi std; OW-code TH-400 or close-ratio 4-speed (code XF in 1969); mandatory fender rally stripes (1968); 1969 factory service list: "Air Induction System (442)"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
W-31 Force-Air 350 CID package, 325 hp ("Ram Rod 350" in 1968, ~501 built) 1968–70
F-85/Cutlass, NOT 442; black inner fenders; manual brakes only; 1969: only year of W-31 convertible (26 built); JO-code TH-350 automatic added Oct 1968 (per Olds marketing bulletin N/C 68-17); 1969 factory service list: "Air Induction System (32, 36 and 4200)"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
W-32 400 CID Force-Air with milder 286° cam, mandatory TH-400 (M-YO code) — "between W-31 and W-30" 1969
442 option; 297 built (25 Sport Coupe, 247 Holiday, 25 Conv.); W-32 fender decals; rated 350 hp (one Olds publication says 360 — internal inconsistency)
Confirmed
W-45 / W-46 Hurst/Olds 455 engine codes: W-45 = non-A/C (D heads, W-31 carb 7028255, 3.91 axle), W-46 = A/C (C heads, carb 7028251, 3.08 axle) 1968 (W-46 referenced again in 1969 assembly manual)
1968 H/O: 515 built, Peruvian Silver/black, 390 hp 455, OW TH-400; 1969 H/O: 912–914 built, Cameo White/Firefrost Gold, 380 hp, OH-code TH-400, mailbox hood scoops — H/O is a Demmer/Hurst conversion, not an Olds RPO package
Confirmed
Y-72 HD engine cooling 1968–69
Not available with W-32; 1969 factory service list: "Heavy Duty Engine Cooling"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
Y-73 Hood paint stripe 1969
Mandatory with W-32
Confirmed
G-80 Anti-Spin differential 1968–69
Mandatory with W-32; 1969 factory service list: "Locking Type (Anti-Spin) Differential"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
V-01 / V-02 HD radiator 1968–69
Mandatory with W-32
Confirmed
M-14 HD 3-speed fully synchronized, floor shift 1968–69
1969 factory service list: "3 Speed Fully Synchronized H.D., Floor Shift"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
M-20 / M-21 4-speed wide / close ratio 1968–69
M-20 "4 Speed Fully Synchronized, Wide Ratio, Floor Shift" / M-21 "4 Speed Close Ratio Synchronized, Floor Shift"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
M-38 TH-350 automatic (A-body only 1969) 1969
1969 factory service list: "Turbo Hydra-Matic Transmission (A Body Only)"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
M-40 TH-400 automatic 1968–69
OW code on W-30; 1969 factory service list: "Turbo Hydra-Matic Transmission"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
JL2 Power front disc brakes (single piston) 1969
Replaces J-52; 1969 factory service list: "Front Disc Brakes - Power"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
C-24 Recessed windshield wipers (F-85) 1968
Confirmed
N-33 Tilt steering column (F-85) 1968–69
1969 factory service list: "Tilt Steering Column (F-85)"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
U-21 Rally Pack 1968–69
Std equipment on W-30; 1969 factory service list: "Rally Pack"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
J-50 Power brakes 1969
Factory optional-equipment list: "Power Brakes"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
J-55 Heavy-duty brakes (police usage) 1969
Factory optional-equipment list: "Heavy Duty Brakes (Police Usage)"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
C-60 Air conditioning 1969
Factory optional-equipment list: "Air Conditioning" (C-61 = w/automatic controls)
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
C-49 Electrical defrosting rear window 1969
Factory optional-equipment list: "Electrical Defrosting Rear Window" (C-50 = Rear Window Defogger)
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.246.
Factory-verified
K-30 Cruise control (automatic throttle control) 1969
Factory optional-equipment list: "Automatic Throttle Control (Cruise Control)"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
G-51 Heavy-duty rear springs 1969
Factory optional-equipment list: "Heavy Duty Rear Springs"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
G-66 Superlift rear shock absorbers 1969
Factory optional-equipment list: "Superlift Rear Shock Absorbers"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
M-55 Auxiliary oil cooler, automatic transmission 1969
Factory optional-equipment list: "Auxiliary Oil Cooler, Automatic Transmission"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
N-37 Tilt and telescope steering wheel (all exc. F-85) 1969
Factory optional-equipment list: "Tilt and Telescope Steering Wheel (All Exc. F-85)"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
T-87 Safety Sentinel (speed warning) 1969
Factory optional-equipment list: "Safety Sentinel"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
W-25 Forced Air Induction fiberglass OAI hood 1970
Optional on 4-4-2/Cutlass; standard on W-30/W-31; own stripe pattern; factory list: "Force Air Induction System… Included in W30 & W31 Options… Includes Special Hood Paint Scheme"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.231.
Factory-verified
W-26 Front compartment console with Hurst Dual/Gate shifter 1970
4-4-2; factory list: "Front Compartment Console - Dual Gate Shifter"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.231.
Factory-verified
W-27 Aluminum differential carrier & cover (~22 lb savings) 1970
Factory option only on W-30/W-31/W-32; dealer-installed cover for other A-bodies; factory list: "Aluminum Rear Axle Carrier… Available Only with W30 or W31"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.231.
Factory-verified
W-30 OAI 455 package: 370 hp, aluminum intake (casting 406115 "OLDSMOBILE W-455"), F heads, W-25 hood std, red fenders, no sound deadening 1970
442; A/C and power brakes first available; axles SF 3.23 (auto+AC), TM 3.42 std, TO 3.91 opt; factory list: "Induction System - Carburetor Outside Air… 455 Cu. In. 4-Barrel H.C. Engine"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.231.
Factory-verified
W-31 OAI 350 package, 325 hp, aluminum intake (new for 1970) 1970
F-85/Cutlass; 1,352 sold (207 F-85 club coupe, 116 Cutlass club coupe, 1,029 Cutlass hardtop); ~12 built on Rallye 350s; factory list: "Induction System - Carburetor Outside Air… 350 Cu. In. 4-Barrel H.C. Engine"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.231.
Factory-verified
W-32 455 4-bbl 442-spec engine (365 hp) for the Cutlass Supreme SX 1970
Requires Y-79 SX; OG-code TH-400; ~1,025 built (no firm documentation); no exterior W-32 identification this year
Confirmed
Y-79 SX package, Cutlass Supreme (drivetrain, 12-bolt rear, cutout rear bumper w/trumpet exhausts, SX badges) 1970
Std engine L-33 320 hp 455 2-bbl (to ~Feb 1970), then L-31 365 hp 4-bbl; ~7,197 SX built. Note: option-code lists assign Y-79 to "Cutlass Salon" (FAQ) / "98 Regency 1972–75" (Mileposts) — year-dependent reuse. Factory kit confirms 1970 usage: "Y79 Cutlass Supreme Performance Package"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.232.
Disputed
confirmed (1970 SX usage per FAQ W-machine page + factory kit); disputed (later-year application)
W-45 Rallye 350 package: Sebring Yellow paint, body-color urethane bumpers, W-25-style OAI hood, spoiler, blacked-out grille, 310 hp L-74 350 1970
F-85 club coupe, Cutlass S sport & Holiday coupes; $157.98–$158.98; 3,547 built; conceived as the 1970 Hurst/Olds
Confirmed
W-33 390 hp 455 police engine 1970
Delta 88 only — listed here for cross-reference; see fullsize-88-98.md
Confirmed
W-35 Rear deck air spoiler 1970
4-4-2/Rallye 350
Confirmed
L-74 350 4-bbl high compression (Rallye 350 engine) 1970
Factory list: "Engine Option — 350 Cu. In. V-8 H.C. 4-Barrel"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.229.
Factory-verified
L-31 455 4-bbl high compression, 365 hp (Cutlass Supreme SX / performance 455) 1970
Factory list: "Engine Option — 455 Cu. In. V-8 H.C. 4-Barrel; M40 Mandatory; Dual Exhaust System Included"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.228.
Factory-verified
L-33 455 2-bbl high compression, 320 hp 1970
Std SX engine to ~Feb 1970. Factory list: "Engine Option — 455 Cu. In. V-8 H.C. 2-Barrel; M40 Transmission Mandatory; Mandatory with Y79 on 34257,87"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.228.
Factory-verified
M-15 3-speed manual fully synchronized 1970
Std with W-31. Factory list: "Manual Transmission - 3-Speed Fully Synchronized - Floor Shift - Heavy Duty"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.229.
Factory-verified
M-20 / M-21 4-speed wide / close ratio 1970
Factory list: M-20 "4-Speed Fully Synchronized - Floor Shift" / M-21 "4-Speed - Close Ratio Fully Synchronized"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.229.
Factory-verified
M-38 / M-40 TH-350 / TH-400 1970
JO-code TH-350 on W-31 auto; OW TH-400 on W-30. Factory list: both "Turbo-Hydra-Matic Transmission" (M-38 = 350 CID engines, M-40 = 455 CID)
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.229.
Factory-verified
G-88/G-90/G-91/G-92/G-96 Axle ratios 3.91/3.08/3.23/3.42/2.56 (Rallye 350 order data) 1970
2.78 std w/auto. Factory kit lists these as "Performance Rear Axle" G-code options but OCR of the code digits is unreliable
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.228.
Single-source
G-80 Anti-Spin (Limited Slip) differential 1970
Mandatory when 3.42 or 3.91 ratio used. Factory list: "Limited Slip Type Differential - Anti-Spin Axle"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.228.
Factory-verified
FE2 442 Suspension Package (springs, shocks, stabilizer shafts, rear lower control arms, wheels) 1970
Factory list: "442 Suspension Package… PC2 wheel 14x7JJ included" (extends FE2 back to 1970; doc previously listed FE2 only for 1972)
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.227.
Factory-verified
V-01 / V-02 HD radiator 1970
V-01 mandatory w/3.91 axle, V-02 w/3.42 axle. Factory list: "Radiator - Heavy Duty"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.231.
Factory-verified
N-40 Power steering 1968–70
1969 factory service list: "Power Steering"
GM Heritage factory kit — 1969 Oldsmobile 442 Info Kit, p.247.
Factory-verified
N-47 Power steering — variable ratio 1970
Factory list: "Power Steering - Variable Ratio"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.230.
Factory-verified
Y-72 HD engine cooling & generator package 1970
Not available with 3.42/3.91 axle or V-01/V-02. Factory list: "Heavy Duty Engine Cooling & Generator Pkg."
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.232.
Factory-verified
Y-73 Hood paint stripe 1970
Factory list: "Hood Paint Stripe"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.232.
Factory-verified
C-28 Dual-action tailgate (wagons) 1970
Factory list: "Double Action Tail Gate"
GM Heritage factory kit — 1970 Oldsmobile 442 Info Kit, p.227.
Factory-verified
W-30 OAI 455, 350 hp gross (compression drop); aluminum intake casting 407570, H heads; red fenders; unique dual-outlet fuel filter 1971
442; 920 built (110 convertibles); factory list: "Induction System - Carburetor Outside Air… 455 Cu. In. 4-Barrel Engine"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.225.
Factory-verified
W-25 OAI fiberglass hood (std on W-30) 1971
4-4-2/Cutlass; factory list: "Force Air Induction System… Included in W30 Option… Includes Special Hood Paint Scheme"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.225.
Factory-verified
W-26 Front compartment console — Dual Gate 1971–72
Factory list: "Front Compartment Console - Dual Gate Shifter"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.225.
Factory-verified
W-27 Aluminum differential cover only (10-bolt corporate diff) 1971
Availability beyond cover unknown for 1972; factory kit confirms 1971 as cover-only: "Aluminum Differential Cover"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.225.
Factory-verified
M-22 HD close-ratio 4-speed (W-30 only) 1971
"Rock crusher" Muncie; factory list: "Manual Transmission - 4-Speed - Close Ratio Fully Synchronized - Floor Shift - Heavy Duty"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.223.
Factory-verified
W-37 HD two-plate clutch 1971–72
Factory kits confirm: 1971 "Clutch - Heavy Duty… Available Only with M20 or M22" ; 1972 explicitly "Clutch - Heavy Duty - 2-Plate; M20 Only"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.225.
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.190.
Factory-verified
W-35 Rear deck lid air spoiler 1971
Factory list: "Rear Deck Lid Air Spoiler"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.225.
Factory-verified
G-80 Anti-Spin (Limited Slip) differential 1971
Mandatory when 3.73 ratio used. Factory list: "Limited Slip Type Differential - Anti-Spin Axle"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.222.
Factory-verified
Y-75 Exterior Sport Equipment 1971
Cutlass
Confirmed
CD-3 Demand wiper system 1971
(Y-78 was the 1970 code); factory list: "Windshield Washer & Wiper - Auxiliary Control Switch In Shift Lever"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.222.
Factory-verified
N-47 Variable-ratio power steering 1971–72
Factory list: "Power Steering - Variable Ratio"
GM Heritage factory kit — 1971 Oldsmobile 442 Info Kit, p.224.
Factory-verified
W-31 — dropped after 1970
Confirmed
W-29 4-4-2 Appearance & Handling package (~$29–$150 depending on source/config): FE2 suspension, stripes, badges, louvered hood, grille 1972
On Cutlass hardtop (3287), Cutlass S coupe/hardtop (3677/3687), Cutlass Supreme convertible (4267); any engine incl. 6-cyl? (350 std ladder). Factory list: "442 Appearance & Handling Package"; Included in W29 = body side & deck lid striping, 442 grilles/black hood louvers/grille & deck lid numerals, wheel opening moldings, FE2 442 Suspension Package, W-39 Hurst shifter (if M15), Y-73 hood paint stripe
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.189.
Factory-verified
W-30 OAI 455, 300 hp net; VIN engine digit "X"; aluminum intake "OLDS W-455"; black inner fenders (first 10 cars red); Ga heads 1972
659 coupes/hardtops + convertibles; Rallye-Pac now optional; M-20 4-speed (not M-22). Factory list: "Induction System - Carburetor Outside Air… Not Available with California cars… Manual Disc Brakes; Mandatory: L-77 455 4-Barrel, M20/M40, W-25, D-35, G-80"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.189.
Factory-verified
W-45 Hurst/Olds package — replaces paint code on body tag; Cameo White w/gold, Rallye suspension, TH-400 w/Hurst Dual/Gate 1972
Cutlass Supreme hardtop (4257) & convertible (4267); 624–629 built incl. 76 Indy Pace Cars; W-30 optional on H/O (X VIN). Factory engineering order Group 35W45: "W45 Special Performance Package - Available as Special Order Only" on 34257 & 34267; Mandatory with W45 = D-35, FE2, G-91 (3.23 axle), JL2, L-75 (455 4-bbl), M-40 (TH-400), W-25, W-26 (companion Group 35W46 pairs the H/O with L-77 W-30 engine)
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.233.
Factory-verified
L-75 455 4-bbl (A-body), +$137 1972
The non-W-30 442 455. Factory list: "Engine Option - 455 Cu. In. V8 4-Barrel; Dual Exhaust System included"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.186.
Factory-verified
L-77 455 4-bbl W-30 spec (A-body) 1972
Factory list: "Engine Option - 455 Cu. In. V8 4-Barrel; Mandatory & Available Only with W30"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.186.
Factory-verified
L-32 / L-34 350 2-bbl / 350 4-bbl (A-body) 1972
Factory list: L-32 "Engine Option - 350 Cu. In. V8 2-Barrel" / L-34 "Engine Option - 350 Cu. In. V8 4-Barrel"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.185.
Factory-verified
W-26 Console w/Dual Gate shifter 1972
H/O; factory list: "Front Compartment Console - Dual Gate Shifter"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.189.
Factory-verified
W-39 Hurst 3-speed floor shifter 1972
Cutlass ("Hursh" typo in CSM list); factory kit spells it correctly: "Shifter - Hurst 3-Speed Performance Floor… Available Only with M15 Transmission; Mandatory with W29 if M15 is ordered"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.190.
Factory-verified
W-35 Rear deck spoiler 1972
Stripe deleted on trunk when fitted (note: the 1972 kit lists a separate "W35 Rocket Emblem - Door Trim Pad" p.189; rear-deck-spoiler usage of W-35 is confirmed factory in the 1970–71 kits)
Confirmed
FE2 Ride & handling package 1972
Core of W-29. Factory list: "442 Suspension Package… Mandatory with W29 Option"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.184.
Factory-verified
W-37 HD two-plate clutch 1972
Factory list: "Clutch - Heavy Duty - 2-Plate; M20 Only"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.190.
Factory-verified
Y-72 HD engine cooling & generator package 1972
Factory list: "Heavy Duty Engine Cooling & Generator Package; N47 Power Steering Mandatory"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.190.
Factory-verified
Y-73 Hood paint stripe 1972
Mandatory with W-29; not available with W-25 or W-30. Factory list: "Hood Paint Stripe"
GM Heritage factory kit — 1972 Oldsmobile Cutlass 442 Info kit, p.190.
Factory-verified
Y-74 Indy Pace Car option 1972
H/O pace car replicas
Single-source
W-29 4-4-2 appearance/handling package ($120 in 1973): HD suspension, sway bars, stripes, louvered hood, blacked grille 1973–75
1973 on Cutlass/Cutlass S only (9,797 built); 1974: 7,204 built; engines 350 2/4-bbl, 455 4-bbl (VIN K/M/U in 1974)
Confirmed
W-45 Hurst/Olds package (Ebony Black or Cameo White w/gold) 1973
1,097 built on Cutlass S; std 275 hp 455; adds W-30 valves/springs (L-75), 3.08 axle
Confirmed
W-46 H/O hot-cam engine option (L77-spec), no A/C, 3.23 axle 1973
Hurst/Olds
Single-source
W-25 H/O 350 drivetrain designation (Rocket 350 + TH-350, "W-25" fender decals) 1974–75
1974: 1,995 H/O total; 1975: 2,535 (1,324 × 350) — note: same code as the 1970–72 OAI hood, different meaning
Confirmed
W-30 H/O 455 drivetrain designation (Rocket 455 + TH-400, "W-30" decals) 1974–75
1975: 1,193 × 455; T-tops (Hurst Hatch) introduced 1975
Confirmed
Y-74 Indy Pace Car option 1974
H/O paced Indy; 102 pace-car convertibles (2 actual + 100 replica)
Confirmed
Y-78 Cutlass Salon option 1973–75
Confirmed
M-38 / M-40 TH-350 / TH-400 1973–75
Engine-dependent
Confirmed
M-21 Close-ratio 4-speed 1973
Listed in 1973 442 FAQ data
Single-source
W-29 4-4-2 package: stripes, HD springs, firm shocks, larger sway bars, 7" wheels 1976–77
9,576 built 1976; engines: Buick V6, 260, 350, 455 (last 455 in 1976)
Confirmed
Hurst/Olds: no factory package; 1976 = dealer Hurst T-top conversions w/"Hurst Olds" emblems; 1977 = single prototype (403 w/marine cam) 1976–77
Not an RPO
Single-source
M75 5-speed manual (with 260 V-8) 1976
Confirmed
LV8 260 CID V-8 1976–77
Confirmed
W-29 4-4-2 appearance/handling package 1978–80
On Cutlass Salon (1978–79), Cutlass Calais (1980)
Confirmed
W-30 1979: the Hurst/Olds package designation (W-30 stickers; Olds 350 R-code + TH-350, gold SSIII-style aluminum wheels, Dual Gate); 1980: 442 W-30 option, Cutlass Calais, 350 4-bbl (VIN R), LJ-code TH-350 1979–80
1979 H/O: 2,499 built (1,165 white/1,334 black; built entirely by Olds in Lansing); 1980 442 W-30: 886 built (538 black/348 white)
Confirmed
Y-79? / — Cutlass Salon trim 1978–79
Trim level, not option code, by this point
Single-source
n/a
W-40 Hurst/Olds 15th Anniversary package 1983–84
Cutlass Calais K47 (continuity reference)
Confirmed
W-42 4-4-2 package (later use) 1983–87
Build sheet / trunk service sticker
Confirmed

Source document: oldsmobile/cutlass-442.md. Rows marked record an option the factory offered whose RPO code is not documented in the consulted sources.