- Engines & Components
- Engine - Assembled / Ready-to-Run
- Chevrolet Performance 454 HO 454ci/438HP Crate Engine
Chevrolet Performance's 454 HO crate engine is classic in its own time, offering enthusiasts an affordable Big-Block combination with performance specs that will make you think it's 1970 all over again - with 438 horsepower and 500 asphalt-wrinkling lb-ft of torque. The foundation of the 454 HO is a brand-new, updated cylinder block, which incorporates many strength and performance design enhancements - making it a smart and economical alternative to rebuilding. We also add an all-forged reciprocating assembly for maximum durability, a roller camshaft, and a set of rectangular-port iron cylinder heads. We deliver the 454 HO with a water pump, balancer, 14-inch flexplate, and aluminum intake manifold. Add a carburetor, ignition system, and starter and your budget Big-Block will be ready to roar.
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454 HO TECH SPECS:
- Engine Type: Chevy 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: Iron rectangular port, 118cc combustion chambers
- Valve Size: 2.190'' intake / 1.880'' exhaust
- Compression Ratio: 8.75:1
- Rocker Arms: Stamped steel
- Rocker Arm Ratio: 1.7:1
- Water Pump: Cast-iron, long-style
- Flexplate: 14'' diameter
- Recommended Fuel: Premium pump (92 octane)
- Ignition Timing: 36° Total @ 4000 rpm
- Maximum Recommended RPM: 5500
- Balanced: External
- Recommended Spark Plug: AC Delco #065-MR43T or any spark plug with 14mm, .460'' reach, 5/8'' hex, tapered seat, non-projected tip
JEGS Easy Kits are designed by JEGS high performance racing professionals to help you get all the performance parts you need for your race car, hot rod or truck.