This 1966 Jaguar 4.2-liter inline-six engine and four-speed Moss gearbox assembly, originally for a Series I XKE, features matching block and cylinder head serial numbers. Reportedly rebuilt in the 1980s with a 0. 030″ overbore, it has been in storage since and includes a starter, distributor, exhaust manifolds, and a trio of SU carburetors that require servicing.