So, what's involved in swapping a 270 or 302 GMC into an AD Chevy? 1951, if it matters. What if it's a "Military Block" GMC? Thanks.
Found this: http://www.jalopyjournal.com/forum/showthread.php?t=567340&highlight=mart3406+jimmy Wonder if the "adapter plate" for the front is still available, or if it's fairly obvious what needs done and simple to fab. Other considerations?
What are your plans for the rest of the drivetrain? Period correct trans. and rear end or something different? Motor mounts & trans. mount (depending on which trans. you use). None of which is really a big deal if you have some fab. skills and access to fab. tools.
Current plan is to keep the original trans and rear - I love the "three on the tree". If nothing else, it keeps me from getting carjacked. Also found this, for anyone else contemplating the swap: http://www.chevytrucks.org/tech/gmc302.htm What's the deal with the "military" blocks?
It's been done many times. A search of the "Inliners" site would help I'm sure. The front crossmember is different on a GMC but it's no biggie. Radiator moves to the front of the core support and the usual fabricating, linkage/exhaust/etc. The military engine was a sealed engine capable of running under water (with snorkel tube) and can be quickly identified by the cast in shelf to hold a thermite grenade for destruction in case of capture.
