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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 V6 engine production code number is between the front and middle branches of the right exhaust manifold. The engine serial number is just below the front of the left cylinder head.

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

The 455 CID engine number is on the front of the right cylinder bank. The production code number is between the left exhaust manifold and the two rear spark plugs.


ENGINE
CODE
NO.
CYL
CID HORSE
POWER
COMP
RATIO
CARB OTHER
CCW 6 250 100 8.2:1 1-BC California
CCX 6 250 100 8.2:1 1-BC  
CCR 6 250 100 8.2:1 1-BC  
ZC 8 350 150 8.5:1 2-BC  
ZP 8 350 150 8.5:1 2-BC California
ZB 8 350 175 8.5:1 4-BC  
ZM 8 350 175 8.5:1 4-BC California
ZI 8 455 175 8.5:1 2-BC  
ZH 8 455 190 8.5:1 2-BC Dual Exhaust
ZF 8 455 210 8.5:1 4-BC  
ZK 8 455 230 8.5:1 4-BC Dual Exhaust
ZS 8 455 245 8.5:1 4-BC Stage I
ZA 8 455 255 8.5:1 4-BC Riviera GS
Engines available as indicated:
  • Apollo - CCW, CCX, CCR, ZC, ZP, ZB, ZM
  • Century, Century Luxus and Regal - ZC, ZP, ZB, ZM, ZI, ZF, ZH, ZK,
  • GS - ZP, ZB, ZM, ZI, ZH, ZF, ZK, ZA
  • LeSabre and LeSabre Luxus - ZP, ZB, ZM, ZI, ZH, ZF, ZK, ZS
  • Electra 225, Custom, Limited and Estate Wagon - ZF, ZK, ZS
  • Riviera - ZF, ZK, ZS




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