Overview
ATK High Performance GM 454 525 HP Stage 3 Long Block Crate Engines
ATK High Performance GM 454 525 hp Stage 3 long block crate engines are updated versions utilizing later model blocks. They offer better street-ability with power, and they require an electric fuel pump. ATK Stage 3 or complete dressed engines are engineered for those wanting to drop the engine into their project and fire it up. They have outfitted the engines as completely as possible to save you time and headaches.
Typically ATK GM 454 525 hp complete engines consist of:
* OE Gen V block with 4-bolt mains
* OE reground crankshaft
* OE powder metal connecting rods
* Hypereutectic pistons
* Chromoly piston rings
* Hydraulic roller camshaft
* Aluminum cylinder heads
* Billet aluminum rocker arms
* Double roller timing chain and cover
* Oil pan, oil pump and pick-up tube
* Valve covers
* Flexplate
* Performance intake manifold
* Distributor
* Long water pump
* Front damper
* 780cfm carburetor
* Spark plugs and wires