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Butler Performance Drop Base Shaker Hood Assembly for use with Edelbrock RPM Performer Intake for '77 to '79 (400) Trans Am WFO-1


Drop Base Shaker Hood Assembly for use with Edelbrock RPM Performer Intake for '77 to '79(400) Trans Am to Locate Shaker Hood Scoop back to Stock Height **WILL NOT WORK w/ 403(1979) or 301(1980-81) Shakers** For use with Q-Jet OR Holley carbs (manual or electric choke), **Will Work With Edelbrock Carbs w/Manual Chokes Only, Not Electric

Pricing: $198.95



Includes air filter

Overall Height: 4 ½”
Diameter: 17”
Filter Diameter: 13”
Carb Flange to Top:3 1/8”

Can be used with EFI Systems- FAST EZ 1.0, 2.0, Holley Sniper, FiTech are all carb height which is close to 3.225". Modification of the drop base may be necessary at the fuel inlet fitting. 90 degree or banjo fitting may also be needed

For some XP carbs the radius inside the drop base may need to be "massaged" to clear the float bowl

Must cut shaker for air inlet

Shaker ring may need to be inverted to due to rounded lip on the base

To use a shaker scoop from an Oldsmobile engine you will need to locate another shaker from a Pontiac application. (See pictures to identify) The bottom portion of the shaker unit is metal and is riveted to the fiberglass shaker. The Olds and Pontiac fiberglass portion of the unit are the same. The rivets will need to be drilled and the metal portion removed to be attached to the corresponding application.

Oldsmobile Shaker

Pontiac Shaker

Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W18.0000” x H18.0000” x L4.0000”
  • This item ships in its own box.

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