FAQ: Engine Specs

FAQ: Engine Specs

The first-generation 4.7L engine was released in 1999, followed by two updates, released in 2002 and 2008, respectively.

• Type 90 deg. V-8, 16 Valve
• Country of Origin: USA
• Hp, SAE Net: 235hp @4800 rpm
• Torque SAE net: 295 ft-lbs @3200 rpm
• Fuel Required: 87 octanes unleaded gasoline
• Bore x stroke: 3.66″ x 3.40″
• Compression Ratio: 9.5:1
• Weight (complete): 438 lb
• Valve Actuation: Chain driven overhead cams
• Block Material: Cast Iron
• Block Design: Removable bedplate
• Head Material: Cast Aluminum
• 64cc Combustion Chambers
• Intake valves 1.89″ / Exhausts valves 1.46
• Intake Manifold: Glass-filled nylon, single plenum, ram’s horn runners
• Fuel Supply: head-mounted multipoint injectors
• Crankshaft: Cast iron, cross-drilled, radiused, fully counterbalanced,
  5 main bearings
• Connecting Rods: Powdered metal, cracked caps
• Bore/Stroke ratio: 1.08
• Rod/Stroke Ratio: 1.80

BASE CAM SPECS:

• Duration advertised 244*/254*
• Valve lift I/E: 0.443″/0.429″
• Valve overlap: 18*
• Centerline: 115*

High Output “HO” CAMSHAFT SPECS:

• Duration advertised: 236*/250*
• Valve lift I/E: 0.472″/0.429″
• Valve overlap: 18*
• Centerline: 111*
• LSA: 112.5*, ICA: 115*, ECA: 110*
• IVO: 3*BTDC (seat to seat)
• IVC: 53*ABDC
• EVO: 55*BBDC
• EVC: 15*ATDC

2008-2013 CAMS

• 53021984AB and 53021983AB
• Intake 202°/.510”
• Exhaust 212°/.478”
• 114.5 Lobe Separation.

• Displacement (cc): 5654
• Bore (mm): 99.5
• Stroke (mm): 90.9
• Bore/Stroke Ratio: 1.09
• Compression Ratio: 9.6: 1
• Bore Spacing (mm): 113.3
• Bank Offset (mm): 22.4
• Block Length (mm): 532.0
• Block Deck Height (mm): 235.0
• Connecting Rod Length (mm): 158.5
• Piston Compression Height (mm): 31.0
• Rod Length/Crank Radius: 3.49
• Intake Valve Diameter: (mm): 50.8
• Exhaust Valve Diameter (mm): 39.4
• Included Valve Angle (deg.): 34.5
• Combustion Chamber Volume (cc): 84.9
• Intake Valve Lift (mm): 12.0
• Exhaust Valve Lift (mm): 11.7
• Mass (kg): 242

• Displacement: 226 cu. in. (3701 cu. cm)
• Bore x Stroke: 3.66 x 3.57 (93.0 x 90.8)
• Valve System: Chain-driven SOHC, 12 valves, hydraulic end-pivot roller rockers
• Fuel Injection: Sequential, multi-port, electronic, returnless
• Construction: Cast-iron block and bedplate, aluminum alloy heads, balance shaft. 90 degree V6.
• Compression Ratio: 9.7:1
• Power (estimated SAE net): 210 bhp (157 kW) @ 5200 rpm
• Torque (estimated SAE net): 235 lb.-ft. (319 N•m) @ 3600 rpm
• Max. Engine Speed: 6000 rpm (electronically limited)
• Fuel Requirement: Unleaded regular, 87 octane (R + M)/2
• Emission Controls: Dual three-way catalytic converters, heated oxygen sensors, and internal engine features
• EPA mpg (City/Hwy):
• – 2WD: 16/22 — manual trans., 17/22 — auto. trans.
• – 4WD: 16/20 — manual trans., 15/19 — auto. trans.