86590-GM ENGINE (BRAND NEW GM 5.7L)

NOTE:
Depending upon manufacturer, this engine may or may not come with certain accessories as shown in photo.

High-?ow cylinder head with straighter intake ports and a higher compression ratio delivers impressive horsepower Valvetrain features advanced design silent timing chain for added durability and positive inlet valve stem seals for reduced oil consumption Roller valve lifters for reduced friction and improved performance Composite front timing cover for noise reduction and corrosion protection New water pump: ef?ciency improved up to 12% more generating a higher pressure head, up to 20% more by using a new impeller and housing design Cylinder head gaskets have stainless steel core for corrosion resistance

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Vortec 5700