Collection: Granatelli Billet LS & LT Intake Manifolds

Granatelli Motor Sports billet intake manifolds are machined from solid billet aluminum in Oxnard, California, for GM LS and Gen V LT engines that have outgrown the factory intake. Choose the ZILLA with a 105mm or 120mm inlet, the twin-103mm MEGAZILLA for extreme LS builds, or the Gen V LT manifold for modern LT engines. Every one is built for naturally aspirated, turbocharged and supercharged combinations, and fuel rails are included.

Which Granatelli Intake Manifold Is Right for Your Build?

Quick guide: most LS3, L99 and L76 street and strip cars start with the ZILLA 105mm. Step up to the ZILLA 120mm when the engine is moving more air than a 105mm throttle body can feed. The MEGAZILLA fits the same vehicles as the ZILLA and is for extreme combinations that have outgrown a single throttle body.

ZILLA & MEGAZILLA Direct-Fit Vehicles

The ZILLA and MEGAZILLA billet LS intake manifolds fit these factory LS3, L99 and L76 vehicles (full year-by-year tables are on each product page):

• Chevrolet Corvette 2008–2013 coupe and convertible (excluding Z06 and ZR1) and 2010–2013 Grand Sport – 6.2L LS3
• Chevrolet Camaro SS 2010–2015 coupe and 2011–2015 convertible, including 2013–2015 1LE – 6.2L LS3 (manual) / L99 (automatic)
• Chevrolet SS sedan 2014–2017 – 6.2L LS3
• Pontiac G8 GT 2008–2009 – 6.0L L76 and G8 GXP 2009 – 6.2L LS3
• Chevrolet Silverado 1500 / GMC Sierra 1500 2007–2009, L76/Vortec MAX equipped (excluding Classic) – 6.0L L76
• Chevrolet Avalanche, Suburban 1500 and GMC Yukon XL 1500 2007–2009 with the optional 6.0L L76
• Australia: Holden Commodore, Ute, Calais and Caprice and HSV ClubSport, Maloo, GTS, Senator and Grange with the L76 or LS3 – see the product pages for series and build dates

Injectors, Fuel Rails and Throttle Bodies

The ZILLA uses 38mm LS3/LS7/LSA-style injectors with LS3/LS7/LSA-style O-rings, and its fuel rails come set up for all 16 ports. Run 8 injectors with the included plugs, or fill all 16 when your fuel system needs it. Size injectors to your horsepower target and fuel type.

Match the manifold to the throttle body: pair the ZILLA 105mm with a Granatelli 105mm LS drive-by-wire throttle body, and the ZILLA 120mm with the Granatelli 120mm LS throttle body. See all Granatelli throttle bodies.

Billet LS Intake Manifold FAQ

Which Granatelli intake manifold fits my Camaro SS?

The ZILLA (105mm or 120mm) and the twin-103mm MEGAZILLA fit the 2010–2015 Camaro SS with the 6.2L LS3 (manual) or L99 (automatic), including the convertible and 1LE.

Will the ZILLA fit a cathedral-port LS1, LS6 or LQ4?

The ZILLA is designed for LS3-style rectangle-port heads. Cathedral-port engines are not on its fitment list, so call us before ordering for a cathedral-port build.

Can I use a Granatelli billet intake manifold with a turbo or supercharger?

Yes. The ZILLA, MEGAZILLA and Gen V LT manifolds are built for naturally aspirated, turbocharged and supercharged combinations. The ZILLA and MEGAZILLA are rated to 45 psi of boost. The Gen V LT manifold also has a built-in burst panel for forced-induction protection.

Do I have to run all 16 injectors on the ZILLA?

No. The ZILLA's dual-injection design has 16 injector ports, and injector plugs are included so you can run 8.

Do I need a tune after installing a billet intake manifold?

Yes. A tune is required.

Are fuel rails included?

Yes, fuel rails are included with every Granatelli billet intake manifold in this collection.

Where are Granatelli intake manifolds made?

They are machined by Granatelli Motor Sports in Oxnard, California, USA.

Not sure which manifold fits your engine? Call Granatelli Motor Sports at 1-805-486-6644, Monday–Friday, 8am–5pm PST.