Detailed SHAKER Photos
The Shaker is composed of the air cleaner housing (also referred to as the shaker base) and lid, the snorkle (the "neck" that extends off the air cleaner housing that connects to the heat shield on the exhaust manifold via a tube), the intermediate plate (including the flapper door and vacuum actuator) and the scoop itself. There is also a neoprene rubber seal that is secured to the base of the scoop to drain away rain water that may enter through the opening in the hood.
The shaker base is very similar to the 351W base, however, it is unique to the Boss 302 in size and dimension. The Boss 302 base is readily identifiable by the numbers 70079 stamped on the top lip near the center mounting stud (see picture above). The Boss 302 base is dimensionally different than the 351W, but has the same basic appearance features. The air cleaner base also has the narrow bolt pattern for the snorkle mounts and measures 4 3/4 inches from hole to hole.
The elbow at the front of the base (that connects the oil breather cap on the driver's side valve cover via a rubber tube) is made of molded plastic and is secured to the base by a black rubber gromlet. There is also another hole in the base near the snorkle mounting area that has either a "star" shaped plastic plug (non-California models) or a plastic "nipple" (California models) used to connect a paper tube to the charcoal cannister located below the engine. There is also a mounting stud on the driver's side of the base for the shaker support bracket that secures the entire assembly to the intake manifold for added support.
The snorkle is the same as used on the non-shaker air cleaner assembly, however, is unique to the Boss 302 only with its offset snorkle section (see arrow above).
The shaker base lid is common to all shaker assemblies (351C/W, Boss, 428CJ, etc), however is unique to the shaker only versus a standard air cleaner housing as it is of smaller diameter and covers only the diameter of the air cleaner element itself. All three pieces (based, lid and snorkle) are painted Ford corporate blue. A good match for this is PlasticKote #224.
The intermediate plate mounts on top of the shaker base and is secured with 3 standard hexnuts. A more common means of attachment is the use of wingnuts, however, they came from the factory with hexnuts. The intermediate plate is NOT unique to the Boss 302 but rather shares it with the 351C/W, hence the inclusion of two holes in the front mounting study for either 2V or 4V carburetors.
The intermediate plate contains the "flapper" door that is actuated by a vacuum motor that is mounted to the rear of the plate and attached to the flapper door via a long, flat rod. The vacuum motor is operated by carburetor vacuum and "pops" open under WOT (wide open throttle) conditions when the vacuum drops below 5 inches. If you run a fairly wild cam, this door will operate eratically at idle due to the low vacuum pressures associated with large lift/long duration camshafts. The intermediate plate and associated flapper door are painted semi-flat black. Krylon #1613 is a very close match.
The scoop itself is not unique to the Boss and is shared with all Mustangs optioned with the shaker. There are no emblems attached to the scoop and the scoop is attached to the intermediate at three different points (see pics of intermediate plate above). The scoop and intermediate plate are jointed together with a seal made of neoprene rubber with a surrounding gutter and drainage tube to drain away water from the engine that enters from the outside. The scoop is painted semi-flat black pain with PAINTED argent fins. An alternative is to paint the scoop and then wet sand off the fins revealing the aluminum underneath, however, this is not concours correct.
The neoprene rubber "gutter" seal described previously.
The final piece to the shaker puzzle is the trim ring, a pot metal piece used to "dress" the sharp edges of the hole cut in the hood. There are 8 molded attaching studs and two re-enforcement plates mounted to the ring with the hood sandwiched in between. The trim ring, along the the re-enforcing plates, is painted semi-flat black.
FINAL NOTES: An Autolite sticker is attached to the shaker base between the front plastic elbow and the support bracket mounting stud on the driver's side. A sticker for California equipped emissions systems is attached to the top of the snorkle.