ENGINE SPECIFICATIONS

A Buick engine is stamped with two different identification codes. One is the engine production code which identifies the engine and its approximate production date. The other code is the engine serial number - it matches the VIN (vehicle identification number)

The 250 COD OHV6 engine number and production code number are on the right side, to the rear of the distributor.

The 350 CID V8 engine number is on the front of the left bank of cylinders. The production code number is between the left exhaust manifold and the two front spark plugs.

The 455 CID V8 engine number is between the two front spark plugs and the exhaust manifold. The production code number is between the tow rear spark plugs and the left exhaust manifold.

EXAMPLE:

F	12	07	SB
1	H	12	3456

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Top Row:   F = Flint   12 = Month   07 = Day   SB = Trans. or Option usage

Bottom Row:   1 = Year (1971)   H = Flint   123456 = Production Code

ENGINE CODE DF EA TO TD TB TC TA TR TS

NO. CYL. 6 6 8 8 8 8 8 8 8

CID   250 250 350 350 350 350 455 455 455*

HORSE POWER 145 155 230 260 260 230 335 310 345

COMP. RATIO 8.5:1 8.5:1 8.5:1 8.5:1 8.5:1 8.5:1 8.5:1 8.5:1 8.5:1

CARB   1BC 1BC 2BC 4BC 4BC 2BC 4BC 4BC 4BC

TRANS   Man 3-spd TH-350 Man 3-spd or TH350 TH-350 Man 3-spd,4-spd,TH 350 TH 350 TH 400 Man 3-spd,4-spd, TH 400 Man 4-spd, TH 400

Engines available as indicated: Skylark - DF,EA,TO,TD Skylark Custom - TO,TD GS - TB,TD,TR,TS LeSabre & LeSabre Custom - TC,TO,TR Centurion - TR,TA Estate Wagon - TR Electra 225 & Electra 225 Custom - TR Riviera - TR Riviera GS - TA Sport Wagon - TO,TB