Engine Compression
Test compression with all spark plugs removed and engine at normal operating temperature. Crank engine through at least 5 compression strokes before recording reading.
ENGINE COMPRESSION
| Application | Specification | ||||
|---|---|---|---|---|---|
| Compression Ratio (1) | |||||
| 302" | |||||
| California | 8.1:1 | ||||
| Federal | 8.4:1 | ||||
| 351" W | 8.3:1 | ||||
| 351" M, 400" & 460" | 8.0:1 | ||||
| Recommended Fuel | Unleaded (87 AKI Minimum) | ||||
| Maximum Variation Between Cylinders | 25% | ||||
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