300-129 Dual Plane Mid-Rise Intake Manifold GM LS3/L92 Rectangle Port

Name: 300-129 Dual Plane Mid-Rise Intake Manifold GM LS3/L92 Rectangle Port
Brand: HOLLEY
SKU: 510-300-129
Price: 478.95 USD
Availability: InStock

^$478⁹⁵

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Carbureted Intake Manifolds

GM LS3 / L92 Rectangle Port

GM LS3/L92 Rectangle Port
Square Bore Carb Flange
1500-6500 RPM
Natural Finish

Specifications
RPM Range: 1,500-6,500
Weight: 14.56 lbs
Front Height: 5.07" from front lifter valley cover to carb mounting flange
Rear Height: 6.14" from rear lifter valley cover to carb mounting flange
Port Size: 1.09" W x 2.454" H
Carb Flange Angle: 0°
Carb Flange: Standard Holley 4150, accepts up to 1.75" diameter throttle bores
Vacuum Port Thread: 3/8" NPT
MAP Sensor Port Thread: 1/8" NPT
Parts Supplied with Each Intake:
Zinc-plated hex head cap mounting bolts and washers
3/8" NPT hex socket pipe plug (to block the manifold vacuum port if necessary)
1/8" NPT hex socket pipe plug (to block the MAP sensor port if necessary)
(8) Viton® O-ring cylinder head mounting flange gaskets
Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Hit the Street FAST with Holley's Dual Plane Intake Manifold

A dual plane design makes this manifold perfect for low-end torque while still reaching up to 6500 RPM. The cast aluminum construction is light and efficient with consistent wall thicknesses and improved casting quality. O-ring cylinder head mounting flange gaskets provide an OE-style seal that makes installation a snap! Minimum carb flange height means the manifold clears the hood with little to no modification.

Features

Great for carbureted or throttle body EFI street applications
1500-6500 RPM range
4150 square bore carb flange
O-ring mounting flange gasket
Optimized runner layout and constant cross-sectional area create broad torque curve
Front Height: 5.07" (from front lifter valley cover to carb mounting flange)
Rear Height: 6.14" (from rear lifter valley cover to carb mounting flange)

JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need.