Have Questions?
Holley 300-631 BILLET ALUMINUM LID, ULTRA LO-RAM
Guaranteed Fitment
Always the correct part
Added Value
Performance matched parts
In-House Experts
We know our products
Nationwide Delivery
Economy shipping
Body, Exterior & Accessories ❯
Brakes ❯
Tools, Hardware & Consumables ❯
Towing, Trailer & Truck Accessories ❯
Always the correct part
Performance matched parts
We know our products
Economy shipping
The P/N 300-631 & 300-631BK Ultra Lo-Ram billet aluminum plenum tops are designed as part of the Holley LS Ultra Lo-Ram EFI intake manifold kits. It is commonly known billet is the best. The strength and rigidity of these components is impervious to cracking and further resists any vibration and harmonics. These 3D CNC machined pieces are cut from a solid block of billet and then anodized. Take your Ultra Lo-Ram to another lever with Holley billet components.
Description_DEF | Engine Air Intake Housing |
Description_DES | BILLET ALUMINUM LID, ULTRA LO-RAM |
Description_EXT | Holley EFI Ultra Lo-Ram Lid; Fits w/ PN[300-602/300-603]; Billet Aluminum; Silver Finish; w/Burst Panel Recess; |
Description_MKT | The P/N 300-631 & 300-631BK Ultra Lo-Ram billet aluminum plenum tops are designed as part of the Holley LS Ultra Lo-Ram EFI intake manifold kits. It is commonly known billet is the best. The strength and rigidity of these components is impervious to cracking and further resists any vibration and harmonics. These 3D CNC machined pieces are cut from a solid block of billet and then anodized. Take your Ultra Lo-Ram to another lever with Holley billet components. |
Description_FAB | Machined billet construction |
Description_FAB | Clear/black anodized for long-term protection from elements and fuels |
Description_FAB | Works with all Ultra Lo-Ram bases (300-602, 300-602BK, 300-603, 300-603BK) |
Description_FAB | Modular Lo-Ram design allows user customization for your induction system |
Description_FAB | Flange seal o-ring cord and the mounting fasteners are included in the kit |
Description_FAB | Includes hardware |
Description_INV | LTS BILLET LID, LO-RAM |
Description_SHO | Air Intake Plenum |
Brand | Holley EFI |
Burst Panel Compatible | Yes |
Clearance Category | Engine |
Construction | Billet Aluminum |
Emission Code | 3 |
Engine | GM LS1/LS2/LS6 |
Finish | Silver |
Fuel System Type | EFI |
WARNING CA Proposition 65 | No |
Manifold Type | Ultra Lo-Ram |
Product Type | Intake Manifold Top |
Recommended Use | Forced Induction |
Warranty | Limited 90 Day |
Length | 2.1000 |
Width | 9.9000 |
Height | 18.3000 |
Weight | 3.9500 |
Adding product to your cart
Ship To Your Home or Pick Up In Store
Cash, Debit, Credit, PayPal, and Financing
Shop With Confidence
Get the Help You Need
Solid hitch with serious strength and clean powder coat, heavy to lift, but installs easy and tows perfectly!!
Shipping was quick and on time - exactly what I needed for my small-block build - would buy again for sure
Weatherbeater mats fit my work truck perfectly. Dropped them in and nothing moves. Truly a great upgrade
Window visors look incredible and feel durable, install was simple. Zero wind noise on the highway!
Leveling kit components were well packed. Instructions lacking, but online videos helped. Rides level now and feels planted.
Found single lifter pairs in stock here when others required full sets, fast shipping got me racing again, hell yeah!!
Rear bumper upgrade looks better than factory plastic. Install was easy, and functionality is miles ahead. Highly recommended.
Tonneau cover fit is excellent. Clear instructions and a smooth install. Delivery to my door was super convenient
Turbo arrived next morning and matched description. Bolted up cleanly and truck is back to full power.
Husband’s birthday grille guard is rock solid, looks sharp he loves it so much!!! Thanks again
Customer service handled a damaged shipment immediately. Refund was painless. I’ll shop here again.
Exhaust system installed in two hours on my first try. Perfect fit and the sound is pure joy.
Need help? We're available at (877) 743-7862 or email us at: sales@shdp.ca
Ship To Your Home or Pick Up In Store
Cash, Debit, Credit, PayPal, and Financing
Shop With Confidence
Get the Help You Need