Overview
ATK High Performance GM 489 Stroker 565 HP Stage 3 Long Block Crate Engines
ATK High Performance GM 489 Stroker 565 hp Stage 3 long block crate engines are new versions based off the later model Gen V and require an electric fuel pump. ATK Stage 3 or complete dressed engines are designed 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 489 Stroker 565 hp complete dressed engines consist of:
* Seasoned OE block with 4-bolt mains
* Nodular iron crankshaft
* 4340 forged I-beam connecting rods
* Forged pistons
* Chromoly piston rings
* Hydraulic roller camshaft
* Performance aluminum cylinder heads
* Billet aluminum rocker arms
* Valve covers
* Timing set and cover
* Oil pan, oil pump and pick-up tube
* Performance intake manifold
* Distributor
* Long water pump
* Front damper
* Flexplate
* 780cfm carburetor
* Spark plugs and wires