Indmar 5.7L Vortec Operator's Manual page 85

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