ATK High Performance GM 350 345 HP Stage 1 Long Block Crate Engines

ATK High Performance GM 350 345 hp/400 lbs.-ft. Stage 1 long block crate engines are classics with great street manners, and vacuum to power all your accessories. These Stage 1 or base engines are designed for those that may have their own component parts already, and who also are interested in completing out the build themselves.

Typically ATK GM 350 345 hp base long block engines consist of:

* Seasoned OE short block with 4-bolt mains
* OE cast crankshaft
* OE 5.7 in. powder metal connecting rods
* Hypereutectic pistons
* Moly piston rings
* Hydraulic roller camshaft
* 220/224 at .050 in.
* .495 in./502 in. lift 110 LSA
* ATK cast iron cylinder heads
* 76cc combustion chambers
* 165cc intake runners
* 1.94 in./1.5 in. valves
* Stamped steel 1.5 ratio rocker arms
* Valve covers
* Timing set and cover
* Oil pan, high volume oil pump with pick-up tube
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