Engine Compression

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1994 GMC Vandura Special, 1994 GMC Vandura, 1994 GMC Rally Camper Special, 1994 GMC Rally, and 1994 GMC Forward Control. However, it is still accessible from the selected car via links, so may be relevant.

COMPRESSION SPECIFICATIONS

Application

Compression Ratio

4.3L

VIN W & Z

9.05:1

VIN Z Turbo

9.3:1

5.0L (VIN H)

9.1:1

5.7L (VIN K)

⁽¹⁾ 9.1:1

7.4L (VIN N)

7.9:1

⁽¹⁾	Compression ratio is 8.3:1 for vehicles with GVW greater than 8500 lbs.