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General Specifications & VIN Identification

1997 MODEL IDENTIFICATION

Model (1) Body Code (2) Engine ENG. ID Fuel System Ignition System
Astro & Safari Safari M, L 4.3L (L35) W CSI 33 (3) Magnetic
Blazer, Bravada, Jimmy, Sonoma,S10 Pickup S, T (4) 2.2L (LN2) 55 4 SFI Magnetic
4.3L (L35) W CSI (5) (3) Magnetic
4.3L (LF6) X CSI (5) (3) Magnetic
Commercial Van & Motorhome (P32/P42) P 5.7L (L31) R CSI
33
Magnetic
6.5L (L57) Y Diesel N/A
6.5L (L65) F Turbo Diesel N/A
7.4L (L19) N TBI Magnetic
7.4L (L29) J CSI (5) Magnetic
Van G 4.3L (L35) W CSI (5) (3) Magnetic
5.0L (L30) M CSI (5) Magnetic
5.7L (L31) R CSI (5) Magnetic
6.5L (L65) S Turbo Diesel N/A
7.4L (L29) J CSI (5) Magnetic
Pickup C, K 4.3L (L35) W CSI (5) (3) Magnetic
5.0L (L30) M CSI (5) Magnetic
5.7L (L31) R CSI (5) Magnetic
6.5L (L65) F Turbo Diesel N/A
6.5L (L56) S Turbo Diesel N/A
7.4L (L29) J CSI (5) Magnetic
Silhouette, Trans Sport & Venture U 3.4L (LA1) E SFI Magnetic
Suburban C, K 5.7L (L31) R CSI (5) Magnetic
6.5L (L65) F Turbo Diesel N/A
7.4L (L29) J CSI (5) Magnetic
Tahoe, Yukon C, K 5.7L (L31) R CSI (5) Magnetic
6.5L (L56) S Turbo Diesel N/A
(1) Series designation.
(2) Engine code is stamped on engine block. See ENGINE CODE LOCATION .
(3) Uses Enhanced Electronic Ignition (OBD-II), utilizing a camshaft and crankshaft position sensor.
(4) 2WD only.
(5) Central Sequential Port Injection (CSI).