Editing Shaker scoop

[[File:Boss302engine.jpg|thumb|A Ford [[Ford Boss 302 engine|Boss 302 engine]] with the optional factory shaker scoop]]

A '''shaker scoop''' (sometimes called a '''shaker hood scoop''' or a '''shaker hood''') is an [[automobile]] term for an [[hood scoop|air intake]] for combustion air that is mounted directly on top of the [[internal combustion engine|engine's]] [[air cleaner]] and protrudes through a hole in the [[hood (vehicle)|hood]].  Since it is fastened directly to the engine, it moves with the engine's movement and vibration on its mountings, thus the 'shaker' name.

==Design==
Like all such scoops, its purpose is to increase performance by a '[[ram-air intake|ram air]]' effect, taking advantage of the vehicle's speed to deliver high pressure, cool air to the engine over a shorter, less restrictive flow path.<ref name=CT-shaker>{{cite web |url=https://www.carthrottle.com/post/what-is-a-shaker-hood-and-how-do-they-work/ |title=What is a shaker hood and how do they work? |author=Fernie, Michael |date=2016 |website=Car Throttle |access-date=27 October 2022}}</ref> However, because engines draw air in hundreds of cubic feet per minute, scoops do not raise intake pressures significantly.<ref name=AW-shaker>{{cite news |url=https://www.autoweek.com/drives/a1907321/2014-dodge-challenger-r-t-shaker-review-notes/ |title=2014 Dodge Challenger R/T Shaker review notes |author1=Raynal, Wes |author2=Kozak, Graham |author3=Lingeman, Jake |date=October 6, 2014 |work=Autoweek |access-date=27 October 2022 |quote=What's the point of the Shaker hood? I dunno -- what has the point of a Shaker hood ''ever'' been? The performance advantages are debatable, so I guess you buy one because you think it looks cool.}}</ref> Additional claimed benefits of a shaker hood include elevation to prevent water from being drawn on flooded terrain, being a source of cooler, denser air, and having a more direct path to the engine's throttle plate.<ref name=CT-shaker/>

===Origins===
[[File:1967-pontiac-firebird-sprint-turismo-front.png|thumb|Pontiac Firebird Sprint Turismo prototype, with visible shaker hood scoop]]
The earliest major example of a shaker hood scoop was seen on the Pontiac Firebird Sprint Turismo prototype. The Pontiac Firebird Sprint Turismo, often referred to as the PFST for short, would eventually lead to the development of the [[Pontiac Firebird Trans Am]].<ref name=HR-Pontiac>{{cite web |url=https://www.hotrod.com/news/how-the-pontiac-trans-am-was-born-part-1 |title=How the Pontiac Trans Am Was Born - Part 1 |date=2013 |website=Hot Rod |access-date=29 May 2025}}</ref>. With the project directed by [[John DeLorean]], the PFST inadvertently harbored the first major use of the shaker hood, entirely out of necessity. Due to the length of a [[Straight-six engine|straight-6]], multiple [[carburetor|carburetors]] are required to evenly distribute fuel and air, of which the PFST would opt for a triple-carb setup. A large, steel air cleaner was installed on top of the setup. However, the air cleaner didn't fit under the hood of the Pontiac, so the engineers would turn to cutting a hole, fully exposing the air cleaner. An article on [[Hot Rod Magazine|Hot Rod]] attributes the PFST's featuring in an issue of [[MotorTrend]] with Ford getting the idea to put the shaker hood to production.<ref name=HR-Pontiac/>

===Factory-installed===
[[Larry Shinoda]] of [[Ford Motor Company|Ford]] is credited with introducing the shaker hood scoop as a factory-fitted option and campaigning to make it functional, first available exclusively for the 1969 [[model year]] [[Ford Mustang (first generation)#1969–1970|Mustang]] equipped with the [[Ford FE engine#428 Cobra Jet|428 Cobra Jet engine]];<ref>{{cite news |url=https://www.motortrend.com/how-to/1610-show-quality-shaker-hood-scoop-detailing/ |title=Show-Quality Shaker Hood Scoop Detailing |author=Shaw, Tom |date=September 21, 2016 |work=Motor Trend |access-date=27 October 2022}}</ref> the option was expanded to other Ford Mustang engines for 1970 and imitated quickly by competitors Chrysler (1970 [[Plymouth Barracuda#Third generation (1970–1974)|Plymouth 'cuda]] and [[Dodge Challenger (1969)|Dodge Challenger]]) and [[Pontiac (automobile)|Pontiac]] (1970{{frac|2}} [[Pontiac Firebird (second generation)|Firebird Trans Am]], which used a backwards-facing scoop to draw air from the high-pressure area at the base of the windshield).<ref name=Hemmings18>{{cite news |url=https://www.hemmings.com/stories/article/shaker-style-hood-scoops |title=Shaker-Style Hood Scoops |author=O'Clair, Jim |date=September 24, 2018 |work=Hemmings |access-date=27 October 2022}}</ref> Some official [[Chrysler]] literature referred to this popular hood style as the "Incredible Quivering Exposed Cold Air Grabber".<ref>{{cite web |url=http://www.stockmopar.com/_images/brochures/1970-plymouth-barracuda-brochure/1970-plymouth-barracuda-brochure-10.jpg |title=1970 Dodge Charger (brochure) |publisher=Chrysler Motor Corporation |date=1970}}</ref> This lengthy title has since been shortened by enthusiasts and collectors to the less tongue-twisting "shaker hood".

In the 2000s, factory-fitted shaker scoops were reintroduced with the [[Ford Mustang Mach 1#2003|2003 Ford Mustang Mach 1]]<ref>{{cite web |url=https://performance.ford.com/enthusiasts/collector-vehicles/mustang/mach-1/2003.html |title=2003 Ford Mustang Mach 1 |publisher=Ford Performance |access-date=27 October 2022}}</ref><ref>{{cite web |url=https://performance.ford.com/enthusiasts/collector-vehicles/mustang/mach-1/2004.html |title=2004 Ford Mustang Mach 1 |publisher=Ford Performance |access-date=4 December 2024}}</ref> and [[Dodge Challenger (2008)|2014 Dodge Challenger]] ("Shaker" and "Mopar" models).<ref name="AW-shaker" /><ref>{{cite news |url=https://www.caranddriver.com/news/a15367124/dodge-declares-2014-the-year-of-the-challenger-introduces-shaker-and-mopar-14-models-2013-sema-show/ |title=Dodge Declares 2014 the Year of the Challenger, Introduces Shaker and Mopar '14 Models [2013 SEMA Show] |first=Alexander |last=Stoklosa |date=November 5, 2013 |work=Car and Driver |access-date=4 December 2024}}</ref> The 2003–04 Mustang Mach 1 was equipped with a model-specific [[Ford Modular engine#InTech|32-valve 4.6&nbsp;L V-8 engine]],<ref>{{cite news |url=https://www.hemmings.com/stories/2003-2004-ford-mustang-mach-1/ |title=It's Almost a Classic: 2003-'04 Ford Mustang Mach 1 |first=Terry |last=Shea |date=March 22, 2024 |work=Hemmings |access-date=4 December 2024}}</ref> to fill the performance gap between the less-powerful Mustang GT and the flagship [[Ford Mustang SVT Cobra#2003|Mustang SVT Cobra]].<ref>{{cite news |url=https://www.motortrend.com/reviews/2003-ford-mustang-mach-1-2/ |title=2003 Ford Mustang Mach 1 |first1=Jack |last1=Keebler |first2=David (photographer) |last2=Freers |date=January 17, 2003 |work=Motor Trend |access-date=4 December 2024}}</ref> For the 2014 model year, Dodge announced the shaker scoop Challengers as limited-production models at the [[Specialty Equipment Market Association|SEMA]] show in November 2013;<ref>{{cite press release |url=https://media.stellantisnorthamerica.com/newsrelease.do?id=15054 |title=HEMI 'Shaker' Returns — 2014 Challenger R/T and Mopar '14 Challenger Models Deliver Power, Performance and Even More Heritage-inspired Style For Hardcore Dodge and Mopar Enthusiasts |date=November 5, 2013 |work=Stellantis North America Media |access-date=4 December 2024}}</ref> shaker scoop availability was extended in 2015.<ref>{{cite news |url=https://www.caranddriver.com/news/a15357606/whats-shakin-dodge-announces-and-prices-new-shaker-challengers/ |title=What's Shakin'? Dodge Announces and Prices New Shaker Challengers |first=Rusty |last=Blackwell |date=February 17, 2015 |work=Car and Driver |access-date=4 December 2024}}</ref> The shaker package was available through the 2023 model year,<ref>{{cite web |url=https://cdn.dealereprocess.org/cdn/brochures/dodge/ca/2023-challenger.pdf |title=2023 Dodge Challenger (brochure |publisher=Fiat Chrysler Automobiles US, LLC |access-date=4 December 2024}}</ref> when the Challenger was discontinued.<ref>{{cite news |url=https://www.caranddriver.com/news/a46236136/2023-dodge-challenger-charger-last-built/ |title=The Last 2023 Dodge Challenger and Charger Have Been Built |first=Caleb |last=Miller |date=December 27, 2023 |work=Car and Driver |access-date=4 December 2024}}</ref>
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==Examples==
<gallery mode=packed heights=120px widths=200px>
File:1971 Plymouth Cuda 440-6 Hardtop (24452748914).jpg|1971 'cuda with [[Chrysler B engine#440|440 6-BBL]] and shaker scoop
File:CudaShaker6pack.jpg|alt=1970 Dodge 440 Six Pack Shaker Scoop|440 Six Pack Shaker Scoop in factory Argent Silver
File:429Shaker.jpg|alt=429 Super Cobra Jet 1970 Torino Shaker Scoop and Intake|Shaker Scoop and Intake on 1970 [[Ford Torino]] with [[Ford 385 engine#Super Cobra Jet|429 Super Cobra Jet]] engine
File:1969 Ford Mustang Mach 1 428CJ (22865677869).jpg|1969 [[Ford Mustang (first generation)#1969–1970|Ford Mustang Mach 1]] [[Ford FE engine#428|428&nbsp;CJ]]
File:1970 Ford Mustang Boss 302 (14376335324).jpg|1970 [[Boss 302 Mustang]]
File:'70 Plymouth Barracuda Hemi (Auto classique).JPG|1970 [[Plymouth Barracuda#Third generation (1970–1974)|Plymouth 'cuda]]
File:1970 Dodge Challenger RT (14922593932).jpg|1970 [[Dodge Challenger]]
File:1970 Ford Torino GT (27755459004).jpg|1970 [[Ford Torino#Second generation (1970–1971)|Ford Torino GT]]
File:1970 Pontiac Firebird Transam (17736059759).jpg|1970 [[Pontiac Firebird (second generation)|Pontiac Firebird Trans Am]]
File:1971 Ford XY Falcon GTHO Phase 3 Sedan (9956968536).jpg|1971 [[Ford Falcon (Australia)#XY|Ford Falcon XY]] [[GTHO Phase III]]
File:1974 Pontiac Ventura with GTO option - factory original condition 2of6.jpg|1974 [[Pontiac Ventura#1971–1977|Pontiac Ventura]] [[Pontiac GTO#Fourth generation|(GTO)]]
File:1977 Pontiac Can Am with TA 6.6 at 2015 Macungie show 1of3.jpg|1977 [[Pontiac Can Am]]
File:2003 Ford Mustang Mach 1 Coupe (14370242858).jpg|2003 [[Ford Mustang (fourth generation)#Special editions|Ford Mustang Mach 1]]
File:2020 Dodge Challenger RT 50th Anniversary Edition (cropped).jpg|2020 [[Dodge Challenger#Third generation (2008–present)|Dodge Challenger R/T 5]]
</gallery>

Cars available with factory-installed shaker scoops included:
* [[1969 Ford Mustang]] [[Ford FE engine|Cobra Jet]]
* [[Boss 302 Mustang#First generation (1970)|1970 Boss 302 Mustang]]
* [[Plymouth Barracuda|1970 Plymouth Barracuda]]
* [[Dodge Challenger]]
* [[Ford Torino]]
* [[Pontiac GTO]]
* [[Pontiac Firebird]] Trans Am
* [[Pontiac Can Am]] Grand Am
* [[GTHO Phase III|Ford Falcon XY GT Phase III]]
* [[Ford Mustang Mach 1|2004 Ford Mustang Mach 1]]

== References ==
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[[Category:Automotive accessories]]
[[Category:Automotive styling features]]