Speedmaster Fuel Injector 0.400" Billet Aluminum Extension Spacer Set LS3 to LS1 Truck PCE599.1002

The Speedmaster Fuel Injector 0.400" Billet Aluminum Extension Spacer Set (PCE599.1002) is a precision-engineered adapter component designed to extend fuel injectors from LS3 to LS1 truck engine applications. This spacer set accommodates the 0.400" height requirement when swapping injector configurations between LS engine generations, enabling proper fitment and fuel system compatibility in engine conversions and upgrades.

Constructed from billet aluminum, this extension spacer delivers durability and reliable performance in high-heat engine bay environments. The set is engineered specifically for LS platform engines, making it an essential component for builders and enthusiasts performing fuel injector modifications or engine swaps. This spacer maintains fuel injector positioning and clearance while preserving OEM-style sealing and function, ensuring consistent fuel delivery and system integrity across your LS engine platform.

Key Features & Benefits

• Billet Aluminum Construction: Precision-machined billet aluminum ensures strength and durability in demanding engine bay conditions.
• 0.400" Height Specification: Exact 0.400" extension dimension designed for LS3 to LS1 truck fuel injector compatibility.
• LS Engine Platform: Purpose-built for LS3 and LS1 truck engine applications and fuel system configurations.
• Engine Swap Ready: Ideal for engine conversions and fuel injector upgrades requiring precise height adjustment.

Specifications

Ideal Applications

• LS3 to LS1 engine swaps requiring fuel injector height adjustment
• Fuel injector upgrades on LS1 truck platforms
• Engine platform conversions maintaining OEM fuel delivery systems
• Custom engine builds with mixed-generation LS component compatibility