GSTP 102mm Cathedral-Port LS Intake Manifold for Chevy LS1/LS2/LS6 – Silver

Overview

Meet the GSTP 102mm Cathedral-Port LS intake manifold, finished in a sleek silver. Crafted for LS engines with cathedral-port heads, this manifold suits 4.8L to 6.0L combinations and complements Gen III/IV EFI setups. The body is machined from 1/8" thick T6061 aluminum and rises to a height of about 210mm, delivering a sturdy, heat-tolerant alternative to factory plastics. The 102mm inlet provides a direct, smooth path from the throttle body to the intake runners, while maintaining a compact footprint for diverse engine bays.

Beyond the look, the metal construction is designed to resist engine bay heat and deformation, helping keep seals aligned and performance consistent under demanding conditions. The polished silver finish lends a premium appearance that stands up to routine maintenance and inspection, making it a practical upgrade for enthusiasts who value both form and function.

Key features and compatibility

• Applicable Engine: Compatible with LS1, LS2, and LS6 cathedral-port heads in 4.8L–6.0L configurations, including LS-based Gen III/IV EFI engines.
• Size & ports: 102mm/4.02" inlet, ~210mm height; 1/8" thick T6061 aluminum; includes vacuum ports (1/4NPT & 1/8NPT) with plugs; rear MAP port (M12 x 1.25); 8AN fuel rail fittings.
• Upgraded fuel rail bracket: Use LS1/LS2/LS6 injectors without spacers or extra modifications.
• Material and durability: Aluminum construction offers enhanced heat resistance and rigidity over plastic equivalents.
• Packaging Includes: intake manifold, throttle body gasket, fuel rail kit, vacuum port fittings, brackets, intake seals, and bolts with nuts or washers. Please verify against the image and contact us if items are missing.

Benefits in real-world use

• Robust aluminum design can help maintain sealing integrity under hot operating conditions.
• Broad compatibility with common LS cathedral-port configurations supports versatile builds.
• Built-in vacuum ports, MAP port, and multiple fittings enable flexible plumbing for customized EFI setups.
• Direct 102mm inlet aims to improve airflow efficiency while preserving a compact install footprint.

What’s included and installer notes

• Intake manifold
• Throttle body gasket
• Fuel rail kit
• Vacuum port fittings
• Brackets
• Intake seals
• Bolts with nuts or washers

Note: Please verify the image to confirm all items are present, and inform us promptly if anything is missing to ensure a smooth install and reliable operation.