56
L510010-11
ENGINE SPECIFICATIONS - 12
MODEL CES/MPI HO303 CES/MPI EX343 CES/MPI ZR409/ZR450
Displacement 5.0L (305 CID) 5.7L (350 CID) 6.0L (366 CID)
Bore 3.75 in. (95.0 mm) 4.0 in. (101.6 mm) 4.0007 in. (101.618 mm)
Stroke 3.48 in. (88.3 mm) 3.48 in. (88.3 mm) 3.622 in. (92.0 mm)
Compression Ratio 9.4:1 9.4:1 9.67:1
Compression Pressure 130 - 215 psi 130 - 215 psi 130 - 215 psi
WOT Operating RPM 4800-5000 5000 - 5300 5400 - 5600
Preferred WOT RPM 4900 5200 5500
Cruising RPM (Max) 3800 4000 4000
Idle RPM (In Gear) 650 (Not Adjustable) 650 (Not Adjustable) 650 (Not Adjustable)
Oil Pressure @ 25 - 60 psi 25 - 60 psi 25 - 80 psi
2000 RPM (172 - 414 kPa) (172 - 414 kPa) (172 - 552 kPa)
Minimum Oil Pressure 5 psi (35 kPa) 5 psi (35 kPa) 5 psi (35 kPa)
at Idle at Idle at Idle
Spark Plug P/N R030010 R030010 R030011
Spark Plug Gap 0.060 in. 0.060 in. 0.040 in.
Firing Order 1-8-4-3-6-5-7-2 (LH) 1-8-4-3-6-5-7-2 (LH) 1-8-7-2-6-5-4-3 (LH)
1-2-7-5-6-3-4-8 (RH) 1-2-7-5-6-3-4-8 (RH) NA
Thermostat RWC 160˚F (61.7˚C) RWC 160˚F (61.7˚C) NA
FWC 170˚F (76.7˚C) FWC 170˚F (76.7˚C) FWC 160˚F (61.7˚C)
Over- Temperature 200° F (93.3° C) 200° F (93.3° C) 200° F (93.3° C)
Electrical System 12 Volt Negative (-) 12 Volt Negative (-) 12 Volt Negative (-)
Ground Ground Ground
Alternator Rating 100 Amps 100 Amps 100 Amps
Ignition Timing Not Adjustable Not Adjustable Not Adjustable
CAM Retard 15 + / - 2 degrees 15 + / - 2 degrees Not Adjustable
Battery Rating 650 CCA (Minimum) 650 CCA (Minimum) 650 CCA (Minimum)
120 Ah 120 Ah 120 Ah
PCM MASTER ENGINE SPECIFICATIONS - 2011
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