MSD 2721 Atomic EFI Billet Fuel Rail Kit for LS1/LS2/LS6

The MSD 2721 Atomic EFI Billet Fuel Rail Kit is a complete fuel delivery solution designed specifically for use with MSD Atomic AirForce intake manifolds on LS1, LS2, and LS6 engines. These precision-machined billet aluminum fuel rails combine high-performance functionality with show-quality aesthetics to enhance both the performance and appearance of your engine bay.

Key Features:

• CNC-machined billet aluminum construction for maximum strength and durability
• Bright dip black anodized finish with laser-etched logos for long-lasting good looks
• 5/8" internal diameter fuel passage provides flow capacity for high-horsepower applications
• Machined to accept large -8 (3/4"-16) O-ring fittings for secure, leak-free connections
• Includes mounting brackets and all necessary hardware for installation
• Complete kit includes 6 feet of -6 AN hose, four 90-degree -6 AN fittings, and two straight -6 AN fittings
• Includes four -6 to 3/4"-16 O-ring adapters for flexible plumbing options

Compatibility:

This fuel rail kit is designed to fit MSD Atomic AirForce intake manifold part numbers 2702, 27023, and 27024 for LS1, LS2, and LS6 applications.

Installation Notes:

• 1999-2004 applications using factory supply and return fuel lines will require the addition of a fuel pressure regulator (sold separately)
• Adapter kit P/N 534-211 is required when directly connecting Atomic fuel rails to GM factory fuel line quick-connect fittings
• If using tall EV1/Bosch style injectors on LS7 or LT applications, there may be interference on low-hood applications such as Corvettes

Upgrade your fuel delivery system with MSD's engineered solution that delivers both the performance and visual impact demanded by serious enthusiasts.