Engine Mockup Block Duramax pigtail Also can connect to our

Also can connect to our long tube header system for a full 3" system

there are many shown in the photos

uses very little torque and allows for perfect seal

HSP0786OM- 68' AMC AMX

CBK0489SS - 1969 Pontiac Firebird

Engine Mockup Block Duramax pigtail Also can connect to ourOur patent pending tab and slot version of the mock up block provides accurate mounting positions of engine accessories and bolt ons. This unique design is lightweight and comes disassembled for ease of shipping and storage. Precision formed returns on all weight bearing components and tight tolerance slots create a rigid and accurate representation of the Duramax engine block. One tool accomplishes accurate placement of a LML engine into the chassis