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Engine Compression

COMPRESSION SPECIFICATIONS

Application

Compression Ratio

2.5L (VIN E)

8.3:1

2.8L (VIN R)

8.9:1

3.1L (VIN D)

8.9:1

4.3L (VIN Z)

⁽¹⁾ 9.3:1

5.0L (VIN H)

9.3:1

5.7L (VIN K)

⁽²⁾ 9.1:1

6.2L Diesel (VIN C & J)

21.3:1

7.4L (VIN N)

7.9:1

⁽¹⁾	8.6:1 on Turbo & heavy duty.

⁽²⁾	8.3:1 on vehicles over 8500 lbs. GVW.