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Home >> Chevrolet >> 1990 >> Caprice Base, 5.7 7 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Specifications >> Engine Controls - Specifications - V6 >> Engine Specifications >> Engine Compression
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Engine Compression

Test compression pressure with engine at normal operating temperature. Remove all spark plugs. Set throttle and choke valves wide open.

COMPRESSION SPECIFICATIONS

Application Specification
Compression Ratio 9.3:1
Compression Pressure 100 psi (7 kg/cm2 ) min.
Maximum Variation Between Cylinders 30%