ZZ454/440 454ci TECH SPECS:

• Engine Type: Big-Block V-8
• Displacement: 454ci
• Bore x Stroke: 4.250' x 4.000'
• Block: Cast-iron with four-bolt main caps
• Crankshaft: Forged steel
• Connecting Rods: Forged steel
• Pistons: Forged aluminum
• Camshaft Type: Hydraulic roller
• Camshaft Lift: .510' intake / .540' exhaust
• Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
• Cylinder Heads: Aluminum oval port w/ 110cc combustion chambers
• Valve Size: 2.19' intake / 1.88' exhaust
• Compression Ratio: 9.6:1
• Rocker Arms: Stamped steel
• Rocker Arm Ratio: 1.7:1
• Recommended Fuel: Premium pump
• Maximum Recommended rpm: 5500
• Balanced: External
• Intake Manifold: Dual plane

Installation Notes:

• Requires addition of carburetor, starter, fuel pump, distributor and ignition system (not included)
• Clutch linkage bosses are drilled and tapped. When using cast-iron exhaust manifolds, lower head bolts may need to be replaced with bolts with shorter heads for clearance
• Comes with an externally balanced 14' automatic transmission flexplate
• Designed for pre-1976 street vehicles or any off-road vehicle
• Not intended for marine applications