FiTech LS 1000 HP EFI System With Long Runner Cathedral Intake & Transmission Control

The FiTech LS 1000 HP EFI System With Long Runner Cathedral Intake & Transmission Control is a complete self-tuning EFI induction system designed for LS engines with cathedral port heads. It supports up to 1000 HP and includes a 102mm throttle body and electronic transmission control for GM automatic transmissions, delivering a seamless upgrade for LS1/LS2/LS6 and similar engines.

Key Features

Long runner cathedral intake manifold optimized for LS1/LS2/LS6 heads
102mm cable-operated throttle body angled at 7 degrees
Electronic transmission control compatible with GM 4L60, 4L65, 4L80, and 4L85 transmissions
Includes 3 BAR MAP sensor for up to 30 PSI boost support

Fitment

Fits LS1, LS2, LS6, LR4, L33, L59, LM4, LM7, LQ4, LQ9 cathedral port heads
Compatible with 4.8L to 6.0L LS-based GM V8 engines

Specifications

Intake manifold height: 9 inches
Throttle body: 102mm, high-flow, cable-operated, 7° angled
Throttle body clearance may require water pump bracket modification depending on setup

Installation Notes

Connect transmission sub-harness if using transmission control; otherwise, leave connectors disconnected
May require custom tuning for specific engine builds