Features:

• 356 aluminum, HEMIspherical chamber cylinder heads
• 376 ci cast-iron block with 4-bolt powder-metal caps
• Forged-steel crank material
• Diamond-like coated connecting rods and floating pins
• Forged piston material
• Nodular iron camshaft
• 103.900 mm bore
• 90.900 mm stroke
• Valve/lift duration @ 0.15 mm
  • Intake: 14.500 mm (0.561 in.) – 278 deg.
  • Exhaust: 14 mm (0.551 in.) – 292 deg.
• 54.300 mm intake valves
• 42 mm exhaust valves

Notes:

• Premium fuel recommended
• Not intended for Marine applications
• Electronics NOT included
• Recommended use with FEAD Basic Kit 293-77072492 for engine operation

Emissions: Not legal on pollution-controlled vehicles or vehicles registered for highway use.

68303089AB supersedes 68303089AA and 68166440AD