This is a GM .030″ Cylinder Over Bore size GEN IV LS Series 5.3L Engine Short Block.

* block casting # : 12576177
* Description : GM .030″ over bore sized 5.3L LS Series LY5 / LMG / LMF GEN IV Short block w/ new cam bearings
* Specs – Material          : Iron                Displacement  : 5.3L / 325 c.i.d.                Bore Dia          : 3.810 in                Stroke              : 3.622 in                Deck Height    : 9.230-9.240 in                Main Cap        : 6-Bolt                Piston               : Flat Top; Hypereutectic; Floating Pin; Coated Skirt                 Cam Bearings : Durabond                Crankshaft / Rod : Reground @ a .010 or .020 with King Bearings

* information : CAMSHAFT NOT INCLUDED.             

**FREE SHIPPING does NOT Include Alaska , Hawaii, and or US Protectorates, American Samoa, Guam, Mariana Islands, Marshall Islands, Micronesia, Palau, Puerto Rico, U.S. Virgin Islands**