• Granatelli MEGAZILLA Black Billet LS Manifold – Twin 103mm Inlets
  • Granatelli MEGAZILLA Black Billet LS Manifold – Twin 103mm Inlets
  • Granatelli MEGAZILLA Black Billet LS Manifold – Twin 103mm Inlets
  • Granatelli MEGAZILLA Black Billet LS Manifold – Twin 103mm Inlets
  • Granatelli MEGAZILLA Black Billet LS Manifold – Twin 103mm Inlets
  • Granatelli MEGAZILLA Black Billet LS Manifold – Twin 103mm Inlets
  • Granatelli MEGAZILLA Black Billet LS Manifold – Twin 103mm Inlets
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Granatelli Motorsports

Granatelli MEGAZILLA Black Billet LS Manifold – Twin 103mm Inlets

Granatelli MEGAZILLA Black Billet LS Manifold – Twin 103mm Inlets

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Specifications

Product details shared across all variants.

Product type
Engine Intake Manifold
Category
Motor Vehicle Engine Parts
Item condition
New
Manufacturer type
Aftermarket
Shipping weight
20.0 lb

Billable shipping weight; may include dimensional weight.

MEGAZILLA

LS Billet Intake Manifold w/ Twin 103mm Opening

Key Features:

  • Fitment: Compatible with GM “LS-based” small-block V8 engines using **cathedral-port heads**
  • Precision-machined from high-grade billet aluminum
  • Precision-machined from high-grade billet aluminum
  • Dual 103mm throttle body inlets for maximum airflow
  • Optimized runner design for superior power and throttle response
  • Engineered for high-horsepower LS builds (NA or boosted)
  • Durable black anodized finish for a clean, aggressive look
  • Built for stability under extreme boost and high RPM

Granatelli Motor Sports MEGAZILLA

Twin 103mm LS Billet Intake Manifold – Billet Black- Part # 980103

Description:

The Granatelli Motor Sports MEGAZILLA is engineered for builders who demand serious airflow, unwavering strength, and top-tier performance from their LS platform. Machined from a solid block of premium billet aluminum, this intake manifold delivers exceptional rigidity and precise airflow control—perfect for high-horsepower street and race applications.

Featuring dual 103mm throttle body inlets, the MEGAZILLA is designed to move massive amounts of air with maximum efficiency, supporting extreme naturally aspirated builds as well as high-boost turbo and supercharged setups. Its optimized runner layout and large plenum volume promote superior cylinder filling, improved throttle response, and exceptional mid-to-high RPM power gains.

Finished in a sleek and durable black anodized coating, this manifold brings both performance and style to any engine bay. Whether you're building a competitive race car or a top-tier street machine, the MEGAZILLA provides the airflow capacity and billet-strength reliability needed to push LS engines far beyond factory limits.

Key Features:

  • Billet aluminum construction for maximum strength and heat stability
  • Twin 103mm throttle body inlets for extreme airflow potential
  • High-flow plenum and optimized runners for improved power across the RPM range
  • Designed for high-boost and high-horsepower LS applications
  • Black anodized finish for a stealth, premium appearance
  • Ideal for extreme NA builds, turbo setups, and supercharged systems
  • Precision fitment for a clean, professional installation
  • 980103
  • 980103
  • 802735047899
  • Granatelli Motor Sports
  • COMING SOON 2026!
  • New

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Vehicle fitment