What Shaker do I have?

The highly desirable shaker option was available on Mustangs for only 2 years, 1969 and 1970. Boss 302 Mustangs only had the shaker available for the 1970-year. Shakers were available for the following engines, 351W, 351C, 390HP, 428 Cobra Jet, and the Boss 302. Mustangs that came with the shaker option used the same hoods. The difference in dimension and location was "adjusted" by using different shaker bases for the different engines, locating the scoop in the same location in relation to the hood. Descriptions for the various shakers are as follows:

428: A 428 shaker assembly is 18.83" in diameter and 5.50" tall. It has 3 "L" brackets welded to the outside edge with a stud sticking up from each that the shaker intermediate plate attached to. Click here for a picture.

390CI: A 390 shaker assembly is 18.83" in diameter and 5.82" tall. The Ford part number is C9OZ-9600-J and the casting number is C9ZF-9600-J. Click here for a picture.

351C: a 351C shaker assembly is 18.83" in diameter and 6.25" tall. It has a lip that runs around the entire base and has 3 studs sticking up from the lid. The 351C has a provision for a breather filter to attach to the inside of the air cleaner base. A hose runs from this breather to the oil cap. It may have the number 4 70071 on it.

351W: A 351W shaker assembly is 18.83" in diameter and 6.14" tall. It has a lip that runs around the entire base and has 3 studs sticking up from the lid. The 351W has a metal or plastic elbow sticking out the front of the air cleaner base. A hose runs from this breather to the oil cap. Click here for a picture.

Boss 302: A Boss 302 shaker assembly is 18.83" in diameter and 5.50" tall. It has a lip that sticks out the front edge about 1 1/4" and tapers down to no lip on the sides. The Boss 302 has a plastic elbow sticking out the front of the air cleaner base. A hose runs from this breather to the oil cap. Click here for a picture.

Note:  The measurements noted above are direct from Ford company information are are for the entire shaker unit, not the base.

The shaker hood scoop is adjustable by three pan head screws that attach the scoop to the intermediate plate. This will allow adjustment of the scoop. Note that other shaker bases will work (although not as well) on the Boss 302. A 351W shaker assembly and an assembly from a Torino will work on the Boss 302.


Currently, GT Ford Performance is reproducing shaker bases. They run about $85 plus shipping and handling in US dollars. A complete shaker assembly runs $359 (US dollars) and includes delivery.  They carry other shaker items as well.


Last update - This page: May 8, 2006

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