Dual Plane Mid-Rise Intake Manifold for GM LS1 LS2 LS6 Cathedral Port 300-130

Dual Plane Mid-Rise Intake Manifold for GM LS1 LS2 LS6 Cathedral Port 300-130

This dual plane mid-rise intake manifold for GM fits LS1, LS2, and LS6 cathedral port engines and delivers a broad torque curve for street and strip builds. Its 300-130 style cast aluminum body routes air through two plenum planes to balance low-end response with upper rpm pull. It suits engine builders and enthusiasts assembling a cathedral port LS for street performance use.

Overview

This dual plane mid-rise intake manifold for GM is a cast aluminum replacement designed for cathedral port LS-series engines such as LS1, LS2, and LS6. The dual plane design splits the intake charge between two plenums to strengthen low and mid-range torque while keeping top-end airflow usable. It is made for engine builders and enthusiasts who want a durable manifold for a street-driven or mild performance LS build.

Built For Performance

• Dual plane runner design balances low-end torque with mid-range and upper rpm power
• Mid-rise profile offers a compromise between low-profile and tall single plane manifolds
• Cathedral port bolt pattern and port shape match GM LS1, LS2, and LS6 cylinder heads
• Cast aluminum construction provides strength and heat resistance for demanding engine bays
• 300-130 style reference number for easy cross-checking against existing part listings

Fits These Machines

• for GM LS1 cathedral port engines
• for GM LS2 cathedral port engines
• for GM LS6 cathedral port engines
• for GM cathedral port cylinder head builds

On-The-Job Use

• Street performance engines seeking strong part-throttle and mid-range response
• Pump-gas LS builds where low-end torque matters more than peak horsepower
• Engine swaps and rebuilds using cathedral port LS heads
• Weekend track and drag builds needing a broad, usable powerband

Specs At A Glance

Good To Know

Q: Will this manifold work with stock LS1 cathedral port heads? A: Yes, it is designed for cathedral port LS1, LS2, and LS6 style heads, though you should confirm port alignment and throttle body compatibility before ordering.

Q: Do I need tuning after installing this intake manifold? A: Most builds benefit from a tune, since airflow changes can shift fuel trims and idle quality on cathedral port LS engines.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.