Allen Millyard Builds a 5 Liter V-Twin

Allen Millyard 5 liter V-Twin out of two cylinders from a Pratt and Whitney 1340 radial

Wooden patterns for casting the crankcase

Allen Millyard, everyone's favorite Dr. Enginestein, has done it again, this time taking two cylinders from a Pratt and Whitney 1340 radial and making himself a 5 liter V-Twin, the "Flying Millyard."

Everything is hand made, including the crankshaft and connecting rods, then, in what seems to be the new popular skill among high level engine builders, he created some wooden patterns and cast an aluminum crankcase for the beast.

The engine runs a dry sump with twin pumps, twin SU carbs, points ignition with manual advance / retard and twin plugs per head.

Allen Millyard 5 liter V-Twin out of two cylinders from a Pratt and Whitney 1340 radial

The original P&W 1340 radial was a nine cylinder, 1,344 cubic inch, 22 liter engine. The new 5 liter engine is intended for a Flying Merkel type board track racer, a BIG board track racer I imagine. This should impress the boys down at the Ace Cafe, don't you think?

from thekneeslider. by Paul Crowe