12-gauge steel construction is strong, durable, and lasts unlike foam/plastic versions Patent pending SoloSwap available in short block and long block mock up engine configuration Short block SoloSwap version weighs 31 pounds and accepts OE cylinder heads Long block SoloSwap version weighs 46 pounds and includes steel fabricated mock up head Long block accepts all 6BT 12-valve bolt-on parts (intake, oil pan, etc.) to confirm engine fit Short block can mount production 12-valve or 24-valve cylinder head for mock up needs Easily lifted and set into place by hand without engine hoist Can be used to mock up any '89-'02 6BT 12-valve Cummins block Ships and can be stored flat with simple assembly/disassembly steps All hardware included for assembly of short or long block versions Customer supplied head bolts and accessory bolts required to add parts to mock up Make Your Cummins 12-Valve Swap Easy by Using Our SoloSwap Mock Up Block There's nothing wrong with taking the easy road with an LS swap or repowering your ride with a factory engine that was simply not offered in your ride when it was originally produced. That said, engine swaps of a unique nature of have really grown in the last few years. One such swap we've seen on the SEMA show floor and slowly make its way to both drag racing and in building something different to cruise in has been the famed Cummins engine swap. This 5.9L inline-six engine has been found in the first and second gen Compatible with Dodge Compatible with Ram pickups from 1989-1993 and 1994-1998, respectively. The deep skirt block and beefy internals means this engine can take a ton of boost. We've seen the early 12-valve 6BT Cummins under the hood of everything from muscle cars and pickups to dragster chassis. It may sound strange to consider an inline-six truck engine for your next build, but we have to say, the aftermarket support for these 6BT 12-valve engines is quite large and still strong to this day