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Description
19433409 HO 454 Chevrolet Performance 454 Replaces 12568774
438 HP Iron Head 454 HO
Big torque on a budget
Chevrolet Performance’s 454 HO crate engine is a Big-Block bargain – an affordable engine with performance specs that will make you think it’s 1970 all over again.
454 HO Tech Specs
- 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 four-bolt main caps
- Crankshaft (P/N 14096983): Forged steel
- Connecting Rods (P/N 19170198): Forged steel
- Pistons (P/N 10215228): Forged aluminum
- Camshaft Type (P/N 24502611): Hydraulic roller
- Camshaft Lift (in.): .510 intake / .540 exhaust
- Camshaft Duration (@.050 in.): 211° intake / 230° exhaust
- Cylinder Heads (P/N 12562920): Iron rectangular port; 118-cc chambers
- Valve Size (in.): 2.190 intake / 1.880 exhaust
- Compression Ratio: 8.75:1
- Rocker Arms (P/N 12523976): Stamped steel
- Rocker Arm Ratio: 1.7:1
- Water Pump (P/N 19168606): Cast-iron, long-style
- Flexplate (P/N 10185034): 14"
- Recommended Fuel: Premium pump
- Ignition Timing: 36° Total @ 4,000 rpm
- Maximum Recommended rpm: 5500
- Balanced: External
- UPC 195491406575
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 bots with shorter heads, for clearance
Comes with an externally balanced 14" automatic transmission flexplate: use flywheel PN 14096987 and 11" clutch assembly for manual transmission applications
Not inteneded for marine applications
Link to information Sheet
More Details
Mark V and VI Oil Pan set:
Milodon Bigblock Oil Pan # 30956
LOW PROFILE
This pan is equally suited for use on the street or the race track. Fits all Chevy chassis, including 1966 & 67 Chevelles, except 1962-67 Nova. Oil control baffles are used to provide consistent oil pressure and subdue any unwanted, power robbing oil movement. Pans have notched rails for up to a 41/2" stroke with most aluminum rods without modification.
Mark V & Gen VI Engine, has cutout to allow filter to exit straight down for close fitting headers
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