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

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%