OLDSmobility.com - The 1967 Oldsmobile Cutlass and 442 Resource


1967 Oldsmobile
Engine Identification

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Engine Unit Number
'(For Manufacturing and Service Use)'

V-8 engines have the engine unit number stamped on a machined pad at the front of the right cylinder head. (See graphic, below left.)

The L-6 Engine has a DATE-CODE stamped on the right side of the engine block, directly to the rear of the distributor. The date code consists of a letter, four digits and two letters. The first letter stand for source identification. The first two digits show the month and the second two digits show the day the unit was built. The last two letters show transmission or option usage.

Engine Identification Chart

Series Prefix Code Letter Starting Unit Number Suffix Code Letter Engine Color Carb. type Head Gasket Thickness Compression Ratio
33300 & 33500 (F-85 L-6)
w/Manual transmission
F 0101 VA Gold 1 bbl. .020" 8.5:1
Manual transmission w/C60 or Y76 F 0101 VB Gold 1 bbl. .020" 8.5:1
Manual transmission w/C60, K20 & Y76 F 0101 VD Gold 1 bbl. .020" 8.5:1
Manual Transmission w/K20 F 0101 VC Gold 1 bbl. .020" 8.5:1
Manual Transmission Export F 0101 VJ Gold 1 bbl. .020" 7.25:1
Jetaway F 0101 VE Gold 1 bbl. .020" 8.5:1
Jetaway w/C60 or Y76 F 0101 VF Gold 1 bbl. .020" 8.5:1
Jetaway w/C60 or Y76, K19 & K20 F 0101 VH Gold 1 bbl. .020" 8.5:1
Jetaway Export F 0101 VJ Gold 1 bbl. .020" 7.25:1
Jetaway w/K19 & K20 F 0101 VG Gold 1 bbl. .020" 8.5:1
33400-33600 & 33855 & 65 Low Compression W 300001 - Gold 2 bbl. .025" 10.25:1
33400-33600 & 33855 & 65 Export Low Compression W 300002 E Gold 2 bbl. .025" 9:1
33800 Exc. 55 &  65 (Opt. L-74 & L-76 33400, 33600 & 33855 & 65) High Compression W 300003 G Gold 4 bbl. .025" 10.25:1
33400, 33600 & 33800 (V-8) (Low Compression Export Option) W 300004 H Gold 4 bbl. .025" 8.3:1
4-4-2 (400 cu. in.) V 200001 G Bronze 4 bbl. .025" 10.5:1
4-4-2 (400 cu. in.) V 200002 - Bronze 4 bbl. .025" 10.5:1

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The following information is presented as a means of discovering exactly what engine you have, whether in your car or the shed out back:
'67 Engine Identification
Code location
(B) -
Right side of engine block, directly behind distributor
(D) -
Stamped on machined pad at front of right cylinder head
'68-up Engine Identification
Code location
(A) -
Top of center exhaust port, left cylinder head
(B) -
Stamped on machined pad at front of right cylinder head
(C) -
Tape attached directly to front of oil filler tube

Year

Engine Production Code Code Location Engine Production Code Code Location
1966 V8 - 425, 2-BBL

M

B

L6 - 250, 1-BBL F B
V8 - 425, 4-BBL

N

B

L6 - 250 T B
V8 - 330

V, X

B

V8 - 330 V, X D

-

-

-

V8 - 400 V D
1967 V8 - 425, 2-BBL P B L6 - 250, 1-BBL F B
V8 - 425, 4-BBL R B V8 - 330 V, X D
V8 - 330 V,X B V8 - 400 V D
1968-69 V8 - 350, 2-BBL TB, TD, TL C L6 - 250, 1-BBL VA, VB, VE, VF B
V8 - 350, 4-BBL TN C V8 - 350, 2-BBL QA, QB, QI, QJ E
V8 - 455, 2-BBL UA, UB C V8 - 350, 4-BBL (6) QN, QP, QV, QX E
V8 - 455, 4-BBL UN, UO C V8 - 400, 2-BBL QL E
V8 - 455, 2-BBL (1) UC, UD, UJ C V8 - 400, 4-BBL QR, QS, QW E

-

- - V8 - 400, 4-BBL (W-30) QT, QU E
1970-71 V8 - 350, 2-BBL QA, QI, QJ, TC, TD, TL C L6 - 250, 1-BBL VB, VF B
V8 - 350, 4-BBL (2) QN, QP, QV C V8 - 350, 2-BBL (4) QA, QI, OJ, TC, TD, TL C
V8 - 350, 4-BBL (3) QD, QX C V8 - 350, 4-BBL (2) QN, QP, QU C
V8 - 455, 2-BBL (4) UC, UD, UJ C V8 - 350, 4-BBL (3) QD, QX C
V8 - 455, 2-BBL (2) TX, TY C - - -
V8 - 455, 4-BBL (2) TP, TQ, TU, TV, TW, UN, UO C - - -
V8 - 455, 4-BBL (3) TS, TT C - - -
V8 - 455, 4-BBL (5) UL C - - -
(1) low compression
(2) 10.25:1 compression ratio
(3) 10.5:1 compression ratio
(4) 9:1 compression ratio
(5) 10.25:1 compression ratio, W-33
(6) QX - W31 engine

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