19433375 454 HO Partial Engine

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Item #: 19433375
Reg. Price: $7,027.80
Our Price: $5,481.69
Quantity:
 

 

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Description 

19433375 454 HO Partial Engine, Replaces 12498778

For those who want the strength and convenience of our 454 bottom end, including its updated block design and modern roller camshaft, but want to add your own heads and induction system, start with our 454 Partial Engine assembly. It's a strong foundation for Big-Block performance.

454 HO Partial Engine(short block) Used as the basis for GM's 454/425hp and 454/440hp Crate engines.

Notes:This engine is configured for a mechanical fuel pump. Fuel pump pushrod is not included.
The timing cover that comes with this engine will only accommodate a late model single roller timing chain. If a old style double roller timing chain is used, a Gen V sheetmetal timing cover must be used .If this timing cover is used, only half of the bolt holes are drilled and tapped in the block (this is how the Gen VI timing cover is set up)
The extra bolt holes will need to be located by using the Gen V timing cover as a template and drilling and tapping the holes accordingly.

This block will accommodate a factory Gen VI roller camshaft or an old style MarkIV flat tappet camshaft. This engine is drilled and tapped for a mechanical "Z" bar clutch linkage ball stud. Accessory Bolt holes in front of block are in the same standard locations as the old Mark IV block, but are drilled and tapped for 7/16-14 threads instead of 3/8-16" some mounting holes on accessories may need to be modified.

This engine comes equipped with a 14" Automatic flexplate. If using a 4L80E transmission, only three torque converter bolts will line up. This engine comes equipped with a 6 quart truck style oil pan. This pan will not fit Chevelle, Camaro, Nova, Impala. It will however fit most 2and 4WD pickup trucks and 63'-82' Corvettes without power steering.


This brand new partial engine includes forged premium quality reciprocating components as well as the balancer, oil pan, flexplate and front cover. This partial engine does not include a camshaft, lifters, timing chain, or cam sprocket. Just add all the parts to complete this engine from Chevrolet Performance Parts such as cylinder heads, camshaft and valvetrain, intake, carburetor and ignition system. Use an externally balanced flywheel for manual transmission applications.

454 High Performance Engine Specifications: Displacement:...................454 cubic inches
Bore x Stroke:.................................................................................4.25 inch x 4.00 inch Deck Height:...........................................................................................9.800” from C/S centerline Block:.............................................................................................Cast iron, four-bolt main caps
Crankshaft: ....................................................................................Forged steel, one piece rear seal
Connecting Rods:.............................................................................Forged steel, 7/16" bolts Pistons:...........................................................................................Forged aluminum
Rings: ............................................................................................Chrome Moly Oil Pan:................................................................................................6 – quart Recommended Oil:................................................................................................ 5W30 synthetic oil (after break-in)
Oil Pressure (Minimum):...................................................................6 psig @ 1000 RPM .....................................................................................................18 psig @ 2000 RPM .....................................................................................................24 psig @ 4000 RPM
Oil Filter: .......................................................................................AC Delco part # - PF1218
Maximum Engine Speed: .................................................................5500 RPM
Firing Order: ..................................................................................1-8-4-3-6-5-7-2

Link to Specifications

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