Pontiac · 1962-1982

Grand Prix

grand prix · grand prix sj · grand prix j · model j · ssj · hurst ssj · grand prix lj

17 option rows 3 RPO codes 16 model years
0% Factory-verified
  • Factory-verified · 0
  • Confirmed · 12
  • Single-source · 5
  • Disputed · 0
1970s Pontiac Grand Prix

Applicable options

Documented RPO codes

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Model year
Grand Prix RPO codes
Code Option Years Notes & factory source Confidence
389 4-bbl (std), 389 Tri-Power, 421, 421 HO Tri-Power engine options 1962–1964
Sales codes not documented in web sources — gap
Confirmed
confirmed (options), code gap
8-lug aluminum wheels (integral drums) 1962–1968
Signature full-size/GP option
Confirmed
confirmed (option), code gap
421 Tri-Power (356 hp) / 421 HO (376 hp) 1965–1966
Optional; prices per 1965 full-size fact sheet
Confirmed
confirmed (options), code gap
428 (360 hp) / 428 HO (376–390 hp) 1967–1968
Replaced 421
Confirmed
confirmed (options), code gap
582 Air conditioning (division sales code) 1967–1968
Documented on Firebird sales manual; division-wide numbering
Single-source
Model SJ option — 428 (370 hp), lamp group, larger tires, badges 1969
UPC not confirmed in web sources
Confirmed
confirmed (package), code gap
428 HO (390 hp) 1969
SJ-optional
Confirmed
confirmed (option), code gap
400 4-bbl 350 hp (std J); 400 2-bbl 265 hp economy (auto only) 1969 Confirmed
confirmed (options), code gap
Turbo Hydra-Matic ($226–229); 4-speed manual ($226) 1969
Prices per fact sheet
Single-source
Power front disc brakes ($105); Rally II wheels ($63); AM/FM stereo ($239); leather trim ($199); capacitor (transistor) ignition ($104–115) 1969 Single-source
SJ option package 1970–1972
$223–244 (1970), $195 (1971); incl. 455 V8 in 1970
Confirmed
confirmed (package), code gap
455 4-bbl (370 hp ’70) 1970–1972
SJ standard; corporate 455 UPCs of this era are L75/LS5 on other lines — GP-specific UPC not confirmed
Confirmed
confirmed (option), code gap
Hurst SSJ conversion — sunroof, gold accents, Hurst wheels 1970–1972
NOT a factory RPO; Hurst Performance Research conversion (272 built ’70, 157 ’71, ~60 ’72); ordered through dealers
Confirmed
SJ package (455 std ’73–74) 1973–1975
UPC not confirmed — gap
Confirmed
confirmed (package), code gap
LJ luxury package 1975–1977
UPC not confirmed — gap
Confirmed
confirmed (package), code gap
L75 455 4-bbl 1973–1976
Corporate UPC (documented on Firebird); GP application plausible but not independently confirmed for GP
Single-source
L78 400 4-bbl 1973–1977
Same caveat as L75
Single-source

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