Indmar Marine Engines
B-3
454 Carb 502 Carb
Number of Cylinders V-8
Displacement 454 CID (7.4L) 502 CID (8.2L)
Bore/Stroke
4.25 x 4 in. 4.46 x 4 in.
(107.95 x 101.6 mm) (113.28 x 101.6 mm)
Compression Ratio 8.6:1 8.75:1
Compression Pressure (Note 1) Minimum 100 PSI (690 kPa)
Idle RPM in Neutral (Note 2) 650 ± 50 RPM
Operating Range at WOT 4400-4800 RPM
Oil Pressure at Idle 5 PSI (34 kPa) Minimum
Oil Pressure at 2000 RPM 10 PSI (69 kPa) Minimum
Oil Filter AC-PF454/Pennzoil PZ-45
Fuel Pump Pressure 8 PSI Max (55.2 kPa)
Electrical System 12 Volt DC Negative (-) Ground
Minimum Battery Requirements 550 cca/700 mca/120Ah
Firing Order 1-8-4-3-6-5-7-2
Spark Plug Type MR43T
Spark Plug Gap 0.045 in. (1.1 mm)
Base Timing at 1000 RPM (Note 3) 10˚ Before Top Dead Center
Thermostat 160° F (71° C) - No Thermostat in Jets
OME0502-07 Body.qxd 6/14/06 10:38 AM Page B-3
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