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1997 C/K Specifications | |
(Regular-Cab and Extended-Cab) |
(Crew-Cab) |
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| Type | ||||
| L35 | L30 | L31 | L29 | |
| Type | Vortec 4300 V6 | Vortec 5000 V8 | Vortec 5700 V8 | Vortec 7400 V8 |
| Block Material | Cast Iron | Cast Iron | Cast Iron | Cast Iron |
| Cylinder Head Material | Cast Iron | Cast Iron | Cast Iron | Cast Iron |
| Bore & Stroke (in.) |
4.00 x 3.48 101.6 x 88.4 |
3.74 x 3.48 95.0 x 88.4 |
4.00 x 3.48 101.6 x 88.4 |
4.25 x 4.00 108.0 x 101.6 |
| Displacement (cu. in./cc) |
262/4293 | 305/4998 | 350/5735 | 454/7440 |
| Compression Ratio | 9.2:1 | 9.4:1 | 9.4:1 | 9.0:1 |
| Induction System | SFI | SFI | SFI | SFI |
| Valves/Cylinder | 2 | 2 | 2 | 2 |
| Lifters | Hydraulic Roller |
Hydraulic Roller |
Hydraulic Roller |
Hydraulic Roller |
| Cam Drive | Chain | Chain | Chain | Chain |
| Horsepower @ rpm (SAE net) | 200 @ 4400 | 230 @ 4600 | 255 @ 4600 | 290 @ 4000 |
| Torque @ rpm (SAE net) |
255 @ 2800 | 285 @ 2800 | 330 @ 2800 | 410 @ 3200 |
| Redline (rpm) | 5500 | 5500 | 5500 | 5000 |
| Recommended Fuel (min.) | 87 Octane | 87 Octane | 87 Octane or Nat. Gas* | 87 Octane |
| Fuel Tank Capacity (Gallons) | Long Wheelbase -- 34 | Short Wheelbase -- 25 | ||
*Available as an option only on C2500 Series Regular-Cab Long-Box models with optional 8,600-lb. GVWR, 3.73 rear axle ratio and four-speed automatic transmission.
| L65 | L65 H.D. Turbo | |
| Type | 6.5L OHV V8 | 6.5L OHV V8 |
| Block Material | Cast Iron | Cast Iron |
| Cylinder Head Material | Cast Iron | Cast Iron |
| Bore & Stroke (in./mm) | 4.06 x 3.82/103.00 x 97.03 | 4.06 x 3.82/103.00 x 97.03 |
| Displacement (cu. in./cc) | 395/6743 | 395/6743 |
| Compression Ratio | 21.5:1 | 21.5:1 |
| Induction System | Indirect EFI w/Turbo | Indirect EFI w/Turbo |
| Valves/Cylinder | 2 | 2 |
| Lifters | Hydraulic Roller | Hydraulic Roller |
| Cam Drive | Chain | Chain |
| Horsepower @ rpm (SAE net) | 180 @ 3400 | 190 @ 3400 |
| Torque @ rpm (SAE net) | 360 @ 1800 | 385 @ 1800 |
| Redline (rpm) | 4000 | 4000 |