GM RPO build codes

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Line 22: Line 22:
 
AUO Remote entry
 
AUO Remote entry
  
AS1 Shoulder Harness, '67+
+
AS1 Shoulder Harness, '67-up
  
AS4 Deluxe Rear Seat Shoulder Harness, '68+
+
AS4 Deluxe Rear Seat Shoulder Harness, '68-up
 
   
 
   
AS5 Standar Rear Seat Shoulder Harness, '68+
+
AS5 Standar Rear Seat Shoulder Harness, '68-up
 
   
 
   
 
AT8 Reclining Passenger Seat
 
AT8 Reclining Passenger Seat
 
   
 
   
AU1 Electric Door Locks, '70+
+
AU1 Electric Door Locks, '70-up
 
   
 
   
 
AU3 Power Door Locks
 
AU3 Power Door Locks
Line 44: Line 44:
 
A33 Power Tailgate Window
 
A33 Power Tailgate Window
 
   
 
   
A39 Custom Deluxe front and rear Seat Belts, 66+
+
A39 Custom Deluxe front and rear Seat Belts, '66-up  
   
+
 
A37 Seat Belt Equipment, '64 only.
 
A37 Seat Belt Equipment, '64 only.
 
   
 
   
Line 54: Line 53:
 
A41 Power Bucket Seat, 4 way.
 
A41 Power Bucket Seat, 4 way.
 
   
 
   
A46 Power Drivers Bucket Seat, 66+
+
A46 Power Drivers Bucket Seat, '66-up
  
 
A47 Custom Deluxe Seat Belts.
 
A47 Custom Deluxe Seat Belts.
Line 78: Line 77:
 
A82 Head Rest, Bench Seat
 
A82 Head Rest, Bench Seat
 
   
 
   
A85 Deluxe Shoulder Harness, '66 1/2 +
+
A85 Deluxe Shoulder Harness, '66-1/2-up
+
 
A90 Electric Trunk Opener
 
A90 Electric Trunk Opener
 
   
 
   
 
A93 Vacuum Door Locks, '69
 
A93 Vacuum Door Locks, '69
  
BO1 Police Body Equipment, '64-65.
+
BO1 Police Body Equipment, '64-'65.
 
   
 
   
BO2 Taxi!! '64-65.
+
BO2 Taxi!! '64-'65.
 
   
 
   
 
BW2 Deluxe Body Side Molding  
 
BW2 Deluxe Body Side Molding  
Line 100: Line 98:
 
B2M No power steering.
 
B2M No power steering.
 
   
 
   
B22 Door trim pad emblem " SS "
+
B22 Door trim pad emblem "SS"
 
   
 
   
 
B37 Colored floor mats
 
B37 Colored floor mats
Line 108: Line 106:
 
B55 Deluxe Front Seat Cushion, '67+  
 
B55 Deluxe Front Seat Cushion, '67+  
  
B70 Padded Dash '64-65.  
+
B70 Padded Dash '64-'65.  
  
 
B75 lining lug compartment, '69
 
B75 lining lug compartment, '69
Line 136: Line 134:
 
CB7 Vinyl Roof cover.
 
CB7 Vinyl Roof cover.
 
   
 
   
CD2 Windshield Washer Level Control, '70+
+
CD2 Windshield Washer Level Control, '70-up
  
CD3 Electro-tip Wipers, '70+
+
CD3 Electro-tip Wipers, '70-up
  
 
CE1 Headlight Washers
 
CE1 Headlight Washers
Line 150: Line 148:
 
CO9 Padded Vinyl roof
 
CO9 Padded Vinyl roof
 
   
 
   
C14 Two Speed Wipers, '64.
+
C14 Two Speed Wipers, '64
 
   
 
   
 
C24 Special Windshield Wipers  
 
C24 Special Windshield Wipers  
Line 164: Line 162:
 
C56 = I/P side vent /70 Upper Level Vent / Astro Ventilation  
 
C56 = I/P side vent /70 Upper Level Vent / Astro Ventilation  
  
C60 Air Conditioning, 4 seasons.
+
C60 Air Conditioning, 4 Seasons.
 
   
 
   
 
C65 Air Conditioning, Deluxe version.
 
C65 Air Conditioning, Deluxe version.
Line 184: Line 182:
 
D80 Spoilers
 
D80 Spoilers
 
   
 
   
D88 Sport Stripe, '70+
+
D88 Sport Stripe, '70-up
  
 
D91 Conquista package
 
D91 Conquista package
 
   
 
   
D96 Wide Paint Stripes, * '67+ refer's to body side accent stripe  
+
D96 Wide Paint Stripes, '67-up, refers to body side accent stripe  
  
 
D99 Two Tone Paint Moldings  
 
D99 Two Tone Paint Moldings  
Line 196: Line 194:
 
F40 Sport suspension
 
F40 Sport suspension
 
   
 
   
F41 Sport Front and Rear Suspension, '69+  
+
F41 Sport Front and Rear Suspension, '69-up+  
  
 
GS1 2.73 Ratio Axle (from 1972 Build Sheet)
 
GS1 2.73 Ratio Axle (from 1972 Build Sheet)
 
   
 
   
GY2 *3.31 ratio axle ('71-'72 Chevelle / El Camino / GMC Sprint).
+
GY2 *3.31 ratio axle ('71-'72 Chevelle/El Camino/GMC Sprint).
 
   
 
   
 
G11 2.56 Rear Axle
 
G11 2.56 Rear Axle
Line 208: Line 206:
 
G67 Controller for Air Shocks.  
 
G67 Controller for Air Shocks.  
  
G75 3.70 rear  
+
G75 3.70 rear axle ratio
  
 
G76 3.36 rear axle ratio  
 
G76 3.36 rear axle ratio  
Line 214: Line 212:
 
G80 Positraction rear  
 
G80 Positraction rear  
  
G82 4.56 Rear axle
+
G82 4.56 Rear axle ratio
 
   
 
   
G84 4.10 Rear axle
+
G84 4.10 Rear axle ratio
 
   
 
   
G92 Performance rear 3.08
+
G92 3.08 Performance rear axle ratio
 
   
 
   
G94 3.31 rear
+
G94 3.31 rear axle ratio
 
   
 
   
G95 Economy rear 2.73  
+
G95 2.73 Economy rear axle ratio
  
G96 3.55 rear
+
G96 3.55 rear axle ratio
 
   
 
   
G97 2.73 Rear ratio
+
G97 2.73 Rear axle ratio
 
   
 
   
 
GW5 273 Ratio Axle  
 
GW5 273 Ratio Axle  
Line 233: Line 231:
 
   
 
   
 
HO5 3.73 rear axle ratio
 
HO5 3.73 rear axle ratio
 +
 +
J1E LS3 Only 465 -465 HP
 
   
 
   
 
J50 Power brakes  
 
J50 Power brakes  
Line 289: Line 289:
  
 
L65 350-250hp, '69+
 
L65 350-250hp, '69+
 +
 +
L67 327-340hp, '62+  solid lifter
 
   
 
   
 
L72 427-425hp Yenko, '69  
 
L72 427-425hp Yenko, '69  
Line 683: Line 685:
 
<br>
 
<br>
  
{{Note1}} The following needs verification.
 
 
==Build Sheet==
 
==Build Sheet==
Build sheets are a small strip of paper, about 2 inches wide by 8 inches long or a square about 5 inches by 7 inches that is usually buried in the cotton stuffing of the rear seat, in the backrest of the front seat, or drivers bucket. If you are lucky enough to find this, (the mice usually have other plans for it) then photocopy it immediately and put it back, the last thing you want is to lose it after having it right under your butt for so long. If you make a copy and replace it you are ensuring that the next guy (hey, we all know you plan on keeping this one forever!) can enjoy the thrill of "finding" this original documentation. Build sheets usually confirm what the Cowl tag will tell you, but in more depth.
+
Build sheets are a small strip of paper, about 2 inches wide by 8 inches long or a square about 5 inches by 7 inches that is usually buried in the cotton stuffing of the rear seat, in the backrest of the front seat, or drivers bucket. If you are lucky enough to find this, (the mice usually have other plans for it) then photocopy it immediately and put it away in a safe place, the last thing you want is to lose it after having it right under your butt for so long. Build sheets usually confirm what the cowl tag will tell you, but in more depth.
  
 
Build sheets consist of the following information:  
 
Build sheets consist of the following information:  
Line 701: Line 702:
 
In addition to the VIN plate, partial VIN numbers are sometimes stamped on the rear frame rail or some other locations depending on the year and make/model.
 
In addition to the VIN plate, partial VIN numbers are sometimes stamped on the rear frame rail or some other locations depending on the year and make/model.
 
   
 
   
==Engine codes==
+
==Casting numbers and date codes==
 +
{{Note1}}See the links under '''''Resources''''' for more info on casting numbers and date codes, etc.
 +
 
 
When a part is cast, the mold has a part number and a date code set so that it is part of the mold and the part is forever identified. Most older Chevy parts such as heads, blocks, and manifolds, usually have a 7 digit casting number beginning with 3 to identify the part.
 
When a part is cast, the mold has a part number and a date code set so that it is part of the mold and the part is forever identified. Most older Chevy parts such as heads, blocks, and manifolds, usually have a 7 digit casting number beginning with 3 to identify the part.
  
Line 707: Line 710:
 
   
 
   
 
===Partial VIN===
 
===Partial VIN===
Stamped on the engine pad located in front of the right head. An engine identifier is also stamped here.
+
Stamped on the engine pad located in front of the right head. An engine identifier known as the "suffix code" is also stamped here.
+
 
 
==Heads==
 
==Heads==
 
The casting number is usually in the area under the rocker arms. Years of baked oil may fill the numbers to make them hard to read. On some heads, partial numbers were found on the intake runners on the block side, such as the 461 and 462 heads.  
 
The casting number is usually in the area under the rocker arms. Years of baked oil may fill the numbers to make them hard to read. On some heads, partial numbers were found on the intake runners on the block side, such as the 461 and 462 heads.  
Line 718: Line 721:
 
   
 
   
 
===Fuel Injection 1957-'65===
 
===Fuel Injection 1957-'65===
Stamped on a metal tag on the left front of the plenum. Serial number Stamped on side of plenum for the first hundred or so in 1957 and then were stamped on the metal tag. The serial number does not have to correspond to the car's serial number.  
+
Stamped on a metal tag on the left front of the plenum. Serial number Stamped on side of plenum for the first hundred or so in 1957 and then were stamped on the metal tag. The serial number does not have to correspond to the car's serial number. it is all gay
  
 
==Intake Manifold==
 
==Intake Manifold==
Line 5,345: Line 5,348:
  
 
JM8 : BRAKE SYSTEM PWR, FRT DISC RR DRUM, ALUMINUM,  
 
JM8 : BRAKE SYSTEM PWR, FRT DISC RR DRUM, ALUMINUM,  
 +
 +
J1E : ENGINE, GAS, 8 CYL, SPECIAL ORDER LS3, 465 - 465 HP COMP
  
 
K01 : FAN, CLUTCH DRIVE, ON/OFF ]  
 
K01 : FAN, CLUTCH DRIVE, ON/OFF ]  
Line 5,711: Line 5,716:
  
 
M31 : TRANSMISSION, AUTO THM 250 CONV CLUTCH  
 
M31 : TRANSMISSION, AUTO THM 250 CONV CLUTCH  
 +
 +
M31 : TORQUE CONVERTER 2-SPD (Used for 1964 Lemans - Believed to be for the 2 Speed Super Turbine / ST-300 Automatic Transmission)
  
 
M32 : TRANSMISSION, MAN 5 SPD ISUZU 76MM 3.72 1ST, .70  
 
M32 : TRANSMISSION, MAN 5 SPD ISUZU 76MM 3.72 1ST, .70  
Line 7,580: Line 7,587:
 
Z08 : MODEL CONVERSION, CONVERTIBLE  
 
Z08 : MODEL CONVERSION, CONVERTIBLE  
  
Z09 : MODEL CONVERSION, CAPRICE CLASSIC  
+
Z09 : ORIGINALLY THE COSWORTH VEGA PERFORMANCE PACKAGE. THEN LATER, MODEL CONVERSION, CAPRICE CLASSIC  
  
 
Z10 : MODEL CONVERSION, CARGO VAN  
 
Z10 : MODEL CONVERSION, CARGO VAN  
Line 7,709: Line 7,716:
  
 
ZR1 : PERFORMANCE PACKAGE, SPECIAL COUPE  
 
ZR1 : PERFORMANCE PACKAGE, SPECIAL COUPE  
 +
 +
ZR5 : APPEARANCE PACKAGE, NOMAD
  
 
ZR9 : APPEARANCE PACKAGE, "SYCLONE" PICKUP  
 
ZR9 : APPEARANCE PACKAGE, "SYCLONE" PICKUP  
Line 7,724: Line 7,733:
 
ZW6 : WINDOW PKG, COMPLETE BODY  
 
ZW6 : WINDOW PKG, COMPLETE BODY  
  
ZW9 : B0DY EQUIPMENT, BASE BODY OR CHASSIS  
+
ZW9 : B0DY EQUIPMENT, BASE BODY OR CHASSIS
 +
 
 +
ZX1 : MONZA MIRAGE CONVERSION
  
 
ZX2 : SEATING ARRANGEMENT, DRIVER & PASSENGER, HIGHBACK  
 
ZX2 : SEATING ARRANGEMENT, DRIVER & PASSENGER, HIGHBACK  
Line 7,734: Line 7,745:
 
ZY1 : COLOR COMBINATION, SOLID
 
ZY1 : COLOR COMBINATION, SOLID
  
 +
==Related links==
 +
*[http://www.crankshaftcoalition.com/wiki/Category:RPO_GM_build_codes RPO GM build codes]
 +
*[[General Motors body codes]]
  
 
+
==Resources==
==='''Also see:'''===
+
*[[Chevy engine casting numbers]]
 
+
*[[Identifying Chevy engines]]
[http://www.crankshaftcoalition.com/wiki/General_Motors_build_codes General Motors build codes]
+
*[[SBC cylinder head identification]]
 
+
[http://www.crankshaftcoalition.com/wiki/More_GM_RPO_codes More GM RPO codes]
+
 
+
  
 
[[Category:Identification and decoding]]
 
[[Category:Identification and decoding]]

Revision as of 21:40, 20 December 2022

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