Chevy Big-Block V-8 454 HO – with iron heads and roller cam - 19433409

Our Budget Big-Block Performer!

Chevrolet Performance’s 454 HO crate engine offers strong Big-Block torque 500 lb.-ft. to fit almost any builder’s budget. The foundation is a brandnew, updated cylinder block, which incorporates many strength and performance design enhancements to make it a smart and economical alternative to rebuilding.

We also added an all-forged reciprocating assembly for greater durability, a roller camshaft that optimizes performance and a set of deep-breathing rectangularport iron cylinder heads. The 454 HO is delivered 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. All of the necessary parts are available from Chevrolet Performance.

INSTALLATION NOTES

• Requires addition of carburetor, starter, fuel pump, distributor and ignition system (not included)
• Clutch linkage bosses are now 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; use flywheel P/N 14096987 and 11" clutch assembly for manual transmission applications
• Not intended for marine applications

Technical Specifications

Part Number: 19433409
Engine Type: Chevy Big-Block V-8
Displacement (cu in ): 454
Bore x Stroke (in ): 4.250 x 4.000
Block (P/N 19170538 ): Cast iron with 4-bolt main caps
Crankshaft (P/N 14096983 ): Forged steel
Connecting Rods (P/N 19170198 ): Forged steel
Pistons (P/N 19432034 ): Forged aluminum
Intake Manifold (P/N 19131359 ): Dual plane
Camshaft Type (P/N 24502611 ): Hydraulic roller
Valve Lift (in ): .510 intake / .540 exhaust
Camshaft Duration (@.050 in ): 211° intake / 230° exhaust
Cylinder Heads (P/N 12562920 ): Iron rectangular port; 118cc chambers
Valve Size (in ): 2.190 intake / 1.880 exhaust
Compression Ratio: 8.75:1
Rocker Arms (P/N 19260993 ): Stamped steel
Rocker Arm Ratio: 1.7:1
Water Pump (P/N 12708488 ): Cast-iron, long-style
Recommended Fuel: Premium pump
Ignition Timing: 36° Total @ 4,000 rpm
Maximum Recommended rpm: 5,500
Balanced: External
Flexplate (P/N 10185034 ): 14"

NOTE: Distributor with melonized steel gear MUST be used with long-blocks and partial engines with steel camshafts, or engine damage will occur.