Pontiac Drop Base Shaker Assembly w/ 3" Cone Shaped Washable Element- for use with Edelbrock RPM Intake for '73 to '79 (326-455) Trans Am
**WILL NOT WORK w/ 403(1979) or 301(1980-81) or 305/350 GM engine Shakers**
Description
WILL ONLY WORK ON PONTIAC ENGINE WITH PONTIAC 400/455 SHAKER
**NOT 301**.
***WILL NOT WORK ON 350 ROCKET, 403, 455 OLDS or 305/350 SBC- EVEN IF IT CAME IN THE CAR FACTORY. THOSE SHAKERS HAVE DIFFERENT HEIGHTS, OFFSETS, and BASE PLATES***
1973-79 TA 326-455 Pontiac Drop Base Shaker Assembly w/ 3" Cone Shaped Washable Element Included
Must use Pontiac 400/455 Shaker and not Oldsmobile
**Must cut shaker for air inlet
It can be made to fit with an air cleaner spacer if used with a stock height manifold.
Can work with the Torker II but it is a slightly different angle
Can work with shorter intakes with spacers
*May not work on the early 1977 shaker that was only 2"*
*Will not work on a 74 GTO*
*Will not work on a 70-72 Trans AM with electric actuator flapper doors. To use on 70-72, must change base plate (OER Part# F10193) on shaker to a 73-76 and add a retaining ring.
Not for High Port Heads
Dimensions
Overall Height: 4 3/4"
Diameter: 16 5/8”
Filter Diameter: 10 1/4" top 13 3/4” bottom
Carb Flange to Top:2 3/4”
*Variances in Frame, aftermarket engine mounts, or Body mounts may change shaker height in relation to hood. Shaker height can be effect with aftermarket subframe.
For use w/ Edel Perf RPM or Northwind NW-4150 Intakes and the following carbs/efi:
EFI Systems:
FAST EZ 1.0, 2.0
Holley Sniper
Holley Sniper2
FiTech
Modification of the drop base may be necessary at the fuel inlet fitting. 1/4", 1/2", 45/90 degree hose fitting or banjo fitting may also be needed
We have found the -6AN to o ring 3/8 steel 45 degree fitting works great to provide extra clearance instead of bending the pan to clearance the fitting on Sniper and Sniper 2 EFI systems.
Holley Carbs:
Non-Electric Choke Carbs- Will work
Electric Choke Carbs- Will work
QJET Carbs:
Non-Electric Choke Carbs- Will work
Electric Choke Carbs- Will work
***For other EFI systems and Holley XP style carbs with large extended float bowls, the radius inside the drop base may need to be "massaged" to clear. Drop base is not returnable if modified in any way.***
Edelbrock Carbs:
Non-Electric Choke Carbs- Will work with a Banjo Fitting from Russell (Part #640273).
Electric Choke Carbs- Will not work
Filter cleaning- gentle soap and hot water wash, no high pressure hose or air hose drying, air dry only, these filters are oil free
Want more info on shakers and shaker differences? Click here for our Shaker Tech Article
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.
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Oldsmobile Shaker
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Pontiac Shaker
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Details
- PTF-EP-401
- PTF-EP-401
- Butler Performance
- New
Shipping Information
- Item Requires Shipping
- 6.0 lbs.
- W18.0000” x H18.0000” x L6.0000”
- This item ships in its own box.
Customer Reviews
Total Reviews (3)
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Reviewed by: Dave06/04/2017 10:05PM
Product ownership: Less than 1 month
Purchased from: Butler Performance Inc.
Comments:
Great fit for my application. I have a Pro Plus intake and Holley 750 DP and want to have the option of a functional flap in the shaker. The intake was designed to keep stock shaker location, so different than the RPM, but it fits perfect and looks clean.
Reviewed by: Robert W.12/16/2018 05:33PM
Product ownership: Less than 1 month
Purchased from: Butler Performance Inc.
Comments:
Unit works and looks just fine. On top of an Edelbrock Performer intake and a Holley 4150 carb, I use a half inch adaptor which clears the float bowls, seals the shaker to the hood and allows it to shake as it should. The only drawback I encountered is the somewhat difficult attachment of the shaker to the base with my OEM ring clamp. A very close fit slows down the time required to put the shaker on. It's a factor to me because I only place the shaker on the base if I get caught in the rain. The engine is tuned with an open element in mind which is the normal operating mode.
Reviewed by: Bill11/29/2023 11:43PM
Product ownership: Less than 1 week
Purchased from: Butler Performance Inc.
Comments:
I bought a 77 Trans AM with an Edelbrock Performer RPM and a Holly Street Avenger carb. The former owned raced the car and had a 14" air cleaner sticking out of the hood. Ugly as hell! One option was to install a stock intake and spend around $750 for the missing shaker components or spend $249 for this unit and keep the intake and carb the way it was. I'm really glad I went with the drop base. Installation was a snap, with no issues. The only modification needed was to shorten the air cleaner stud 2".