1963 Buick Engine Number

ENGINE NUMBER

Along with the VIN number, the engine block is stamped with an engine production code. The code has a prefix series of letters and number that identifies the engine and year, then a four digit numberic production sequence. On the V-8 engines, the production code is stamped on the right front of the engine block opposite the VIN number. On the V-6 engine, the number is on the front of the block below the left cylinder head gasket.

SPECIAL & SPECIAL DELUXE

ENGINE NO.	NO. CYL	CID	H.P.	COMP. RATIO	CARB.	TRANS.
JL JZ JM JP JN	6 6 8 8 8	198 198 215 215 215	135 135 155 145 200	8.8:1 8.8:1 9.0:1 7.6:1 11.0:1	2BC 2BC 2BC 2BC 4BC	MAN/AUTO MAN/AUTO MAN/AUTO MAN/AUTO MAN/AUTO

SKYLARK

ENGINE NO.	NO. CYL	CID	H.P.	COMP. RATIO	CARB.	TRANS.
JN	8	215	200	11:1	4BC	MAN/AUTO

LESABRE

ENGINE NO.	NO. CYL	CID	H.P.	COMP. RATIO	CARB.	TRANS.
JR JS JT JU	8 8 8 8	401 401 401 401	280 265 325 315	10.25 9.0:1 10.25 8.75	2BC 2BC 4BC 4BC	MAN/AUTO MAN/AUTO MAN/AUTO MAN/AUTO

INVICTA, ELECTRA 225 & WILDCAT

ENGINE NO.	No. CYL	CID	H.P.	COMP. RATIO	CARB.	TRANS.
JT JU	8 8	401 401	325 315	10.25:1 8.75:1	4BC 4BC	AUTO AUTO

RIVIERA

ENGINE NO.	No. CYL	CID	H.P.	COMP. RATIO	CARB.	TRANS.
JT JU JW	8 8 8	401 401 425	325 315 340	10.25:1 8.75:1 10.25:1	4BC 4BC 4BC	AUTO AUTO AUTO