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Home >> GMC >> 1997 >> Forward Control 6.5 Y, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Engine Controls - Specifications - 7.4L) >> Mechanical Checks >> Engine Compression
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Engine Compression

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 1995 GMC Vandura Special, 1995 GMC Vandura, 1995 GMC Suburban, 1995 GMC Rally Camper Special, and 1995 GMC Rally. However, it is still accessible from the selected car via links, so may be relevant.
COMPRESSION RATIO

Application Compression Ratio
7.4L (VIN N) 7.9:1
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