Holley 300-129 Dual Plane Carbureted Intake GM LS3/L92 All GM LS Gen III or IV Engines Equipped with LS3/LS92 Style Rectangular
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Got an Ls engine to get running? Nothing is easier than bolting on a carburetor.
Holley's dual plane carbureted intake for Gm's Ls engines will help you get on the streets quick! Its dual plane design makes it perfect for low end torque, yet it still pulls all the way to 6,500 RPM!
Our O-ring cylinder head mounting flange gaskets provide an OEM style seal and make installation a snap. Bolt one on today!
Features and Benefits:
- Mounting flange gasket type - O-ring Optimized runner layout and constant cross sectional area provide a broad torque curve Port size - 2.454 inch height x 1.09 inch wide 1500-6500 RPM power band Includes Viton O-rings - Viton is a registered trademark of DuPont Performance Elastomers Weighs 14.56 lbs
- Height (front) - 5.07 inch from front lifter valley cover to carb mounting flange 4150 square bore carb mounting flange Minimum carb flange height means it fits in vehicles with minimal or no hood modifications Height (rear) - 6.14 inch from rear lifter valley cover to carb mounting flange Great for carbureted or throttle body EFI street applications Cast aluminum construction and efficient casting design for light weight, consistent wall thicknesses and improved casting quality
Associated Comments:
- Fits all Gm Ls Gen Iii or Iv engines equipped with LS3/LS92 style rectangular port cylinder heads. Includes mounting bolts & washers.
- Note: These Dual-Plane Intake Manifolds are Not legal for sale or use on engines with pollution controlled equipment.
Details:
- Basic Operating RPM Range: 1500-6500 RPM
- Cnc Ported: No
- Carburetor Flange: Square/4150
- Carburetor Quantity: 1.0
- Carburetor Studs Included: No
- Color: Natural
- Construction: Cast
- Cylinder Head Port Shape: Rectangle
- Deck Height: 9.24 Inch
- Egr Port: No
- Engine: Gm LS3/L92
- Flange Style: 4150 Square Bore
- Front Maximum Height: 5.07 Inch
- Fuel Injectors Included: No
- Fuel Rail(s) Included: No
- Fuel System Type: Carb
- Gasket Or Seal Included: No
- Grade Type: Performance
- Intake Port Gasket(s) Included: No
- Manifold Type: Dual Plane
- Material: Aluminum
- Nitrous Bung(s) Included: No
- Plenum Finish: Natural
- Rear Maximum Height: 6.14 Inch
- Removable Runners: No
- Removable Top/Lid: No
- Single Or Dual Plane Type: Single Plane
- Throttle Body Bore Diameter: 3.6
- Throttle Body Gasket Included: No
- Throttle Body Included: No
- Vacuum Ports: Yes
Installation Guide: Download PDF
Installation / Product Video: Watch on YouTube
β οΈ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.
Warranty: Manufacturer's Limited 90 Day Warranty
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
Shipping Information
Free shipping is available for eligible orders.
Shipping: For USA - Up to 50lbs.
Orders are processed during normal business days. Delivery dates may vary by carrier and destination.
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