Why does it have a Strat neck?
Per Wiki: ( I realize you just asked about the headstock, but it's all relevant..)
History
The popularity of
heavy rock in the late 1960s led Fender to re-think its strategy of exclusively using
single-coil pickups, as they were not perceived as being suitable for the thick sound and extended
sustain favored by heavy rock guitarists using double-coil
humbucking pickups. Consequently, Fender hired former
Gibson employee
Seth Lover, the inventor of the humbucker himself, to design a humbucking pickup for use in a number of Fender guitars. The result was a pickup known as the
Wide Range humbucker, and it was used in a variety of different Fender models including the Deluxe, Custom, and Thinline Telecasters as well as a semi-hollowbody design called the
Starcaster. The Deluxe, originally conceived as the top-of-the-line model in the Telecaster series, was the last of these to be released, in late 1972.
The "humbucker" Telecasters failed to draw potential customers away from competition like Gibson's
Les Paul model, and the Telecaster Deluxe was discontinued in 1981. However, in 2004 Fender decided to re-issue the Deluxe, probably in response to the belated popularity of the original 1970s version.
Features
The Deluxe is unique amongst Telecasters in that the neck has an enlarged headstock – a very similar 21-fret neck was used by Fender
Stratocaster models manufactured in the late 1960s and throughout the 1970s. The main difference between the Telecaster Deluxe and Stratocaster necks from this period is that the Telecaster Deluxe neck used medium jumbo frets while the Stratocaster necks featured narrower fretwire. The Telecaster's neck also features the "Micro-Tilt" angle adjustment device located in the heel of the neck, similar to other Fender models of the period.
The body shape was similar to other Telecaster models of the era, with one minor difference – a "belly cut" contour similar to that featured on all Stratocasters was added to the back of the guitar. The Deluxe also had the same "glitch" in its shape as the other Telecasters – a slightly less-pronounced curve where the upper bout meets the neck joint, compared to earlier (and later) Telecasters. This was attributed to more modern routing machines installed in the production line at the time. The 2004 re-issue differs from the original in that it does not have the 1970s "notchless" body style.