These brand new Chevrolet Performance 7.0L LS7 are manufactured from 319-T5 aluminum alloy with pressed-in sleeves, a production oiling system, 6-bolt dowel-located steel main bearing caps, and a 4.125 in. finished cylinder bore that will accept any LS...
The Dart Big M big block Chevy cast iron bare blocks no-compromise design solves the problems that have plagued big blocks for the years. The Dart Big M features extra-thick cylinder walls, and are available with a choice of different deck heights and...
Big Block Chevy Big M Engine Block
9.800'' Deck Height
Ductile Iron Main Caps
Rear Main Seal Style
Cam Bearings Included
Cylinder Bore as Shipped (in.)
Cylinder Bore Diameter (in.)
LS Steel Main Stud Girdle
Designed to strengthen pan rails and main webbing area of the aluminum LS7/LSX block to help prevent main bearing ware and failures. Made from chromolly steel and cut out using a precision laser jet.
Only fits LS7 and LSX...