Discount prices on quality New & Reconditioned Automotive Replacement Part



This is a GM .020" over sized GEN IV LS Series 5.3L / 4.8L Bare Block.


* block casting # : 12576177

* Description : GM standard sized 4.8L / 5.3L LS Series GEN IV bare block w/ new cam bearings

* Specs - Material          : Iron
                Displacement  : 5.3L / 4.8L 325 c.i.d.
                Bore Dia          : 3.800 in
                Stroke              : 3.622 / 3.627 in
                Deck Height    : 9.230-9.240 in
                Main Cap        : 6-Bolt  
               


 * information : block has been prepped (honed). Block is ready for assembly. 
          
 
 

 

             

     





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