1966 Pontiac Lemans
The successful LeMans saw relatively little change for 1966

1966 Pontiac LeMans

Theres an enourmously capable Overhead Cam Six under the hood that delivers 215 hp at 5200 rpm without straining. Special suspension that practically laminates the wheels to asphalt. A brute of an all-synchro 3-speed mounted on the floor. Or you can order an all synchro 4-speed, also floor mounted. And choose from options like front wheel disc brakes, hood-mounted tachometer, Rally I or Rally II (Shown) wheels, fully instrumented Rally cluster. The Sprint option is available on all Tempests and Le Mans, except station wagon models. Standard safety features include front seat shoulder belt anchors, passenger-guard door locks and the energy absorbing steering column developed by General Motors.      

1966 Pontiac LeMans Specifications and Production

Model Number Body/Style Number Body Type & Seating Factory Price Shipping Weight Total Production
Tempest LeMans Series 237
237 23739 4d Hardtop - 6P $2,701 3,195 lbs 13,897
237 23707 2d Coupe - 6P $2,505 3,090 lbs 16,654
237 23717 2d Hardtop - 6P $2,568 3,125 lbs 78,109
237 23767 2d Convertible - 6P $2,806 3,220 lbs 13,080
Note: 121,740 LeMans were built out of those, 22,862 had synchromesh and 98,878 had automatics.

1966 Pontiac Engine Data

Location Of Engine Code: (Six-Cyl) - On cylinder head-to-block contact surface behind oil filter pipe. (V8) - Stamped on right front side of block or beneath production engine number on machined pad on right hand bank of engine block.
Letter Code Engine Horsepower Torque Transmission Carburetor
WA 8-389 256 388 Manual 2 BC
WB 8-389 256 388 Manual 2 BC
WC 8-389 290 418 Manual 2 BC
WE 8-389 333 429 Manual 4 BC
WG 8-421 338 459 Manual 4 BC
WH 8-421 356 459 Manual 3 - 2 BC
WJ 8-421 376 461 Manual 3 - 2 BC
WK 8-421 338 459 Manual 4 BC
XA 8-389 260 388 Manual 2 BC
XB 8-389 260 388 Turbo Hydra-Matic 2 BC
XC 8-389 293 418 Turbo Hydra-Matic 2 BC
YA 8-389 256 388 Turbo Hydra-Matic 2 BC
YC 8-389 290 418 Turbo Hydra-Matic 2 BC
YD 8-389 290 418 Turbo Hydra-Matic 2 BC
YE 8-389 325 429 Turbo Hydra-Matic 4 BC
YF 8-421 338 459 Turbo Hydra-Matic 4 BC
YH 8-421 338 459 Turbo Hydra-Matic 4 BC
YJ 8-421 356 459 Turbo Hydra-Matic 3 - 2 BC
YK 8-421 376 461 Turbo Hydra-Matic 3 - 2 BC
YL 8-389 333 429 Turbo Hydra-Matic 4 BC
YM 8-421 375 461 Turbo Hydra-Matic 3 - 2 BC
YT 8-421 338 459 Turbo Hydra-Matic 4 BC
YU 8-389 290 418 Turbo Hydra-Matic 2 BC
YV 8-389 290 418 Turbo Hydra-Matic 2 BC
YW 8-389 325 429 Turbo Hydra-Matic 4 BC
YX 8-389 325 429 Turbo Hydra-Matic 4 BC
YZ 8-421 338 459 Turbo Hydra-Matic 4 BC

Transmission Codes

Transmission Location
Turbo Hydra-Matic 350 Stamped on servo cover on right side of transmission.
Turbo Hydra-Matic 400 On metal tag fastened to right side of transmission case or on the left side of converter housing.
Powerglide Stamped on a metal tag located on the right side of the transmission.
Super Turbine 300 (TempesTorque) On metal tag fastened to right side of transmission case or stamped on lower servo cover.
Jetway On metal tag fastened to right side of transmission case or stamped on lower servo cover.
3-Speed Painted or stamped on the transmission case.
4-Speed Painted or stamped on the transmission case.
Plant and Type Designation Prefix Transmission Type
LA TempesTorque
LB TempesTorque
MA TempesTorque
MB TempesTorque
MC TempesTorque
NA TempesTorque
PA Turbo Hydra-Matic 400
PB Turbo Hydra-Matic 400
PC Turbo Hydra-Matic 400
PD Turbo Hydra-Matic 400
PG Turbo Hydra-Matic 400
PH Turbo Hydra-Matic 400
PQ Turbo Hydra-Matic 400

Axle Codes

Location Of Axle Codes: On flange end of axle shaft and on or near carrier.
Color - Non-Locking Color - Locking Ratio
UB VB 2.41
UC VC 2.56
UD VD 2.73
UE VE 2.93
UF VF 3.08
UG VG 3.23
UH VH 3.42
UJ VJ 3.55
UK VK 3.73
UM VM 4.11

1966 Pontiac Owner's Manual

 
   
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