LS GM Complete Blower Engines 1200 HP Big M Sportsman Chevrolet Big

Big M Sportsman Chevrolet Big Block Iron Block – 4

0 L iron block fully blueprinted machined balanced rotating assembly and magnetic particle inspected components

These short blocks are rated up to 1200hp safely

LS GM Performance Block 6

Chamfered oil holes for improved oiling to bearings

LS GM Complete Blower Engines 1200 HP Big M Sportsman Chevrolet BigMBRE uses GM blocks completely balanced and blueprinted in house for the GM series complete engine packages these engines can be fully assembled and delivered as either Dyno tuned or complete with no dyno . We also have a Dart version of this package with the same conditions