Brand New Holley Modular Lo-Ram EFI Manifold Kit, Front-Feed Plenum, Silver Finish, Compatible with LS1, LS2 & LS 6 Gen III & IV Engines (Part #300-621)
300-621 Lo-Ram front-feed plenum entry was configured to provide a very low profile modular intake manifold suitable for turbocharged or centrifugally supercharged engines.The fuel rail kits come with 2 sets of brackets: A set for long (usually standard length) fuel injectors & set for short (such as Pico, or LS7) fuel injectors.
-
Features:
- Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
- Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on application.
- With forced-induction & short runner length the engine rpm at which peak power occurs is more likely to be coupled to the supercharger or turbocharger being used
- Modular design allowing the use of front-feed plenum entry
- Intake design facilitates custom inlet duct and throttle body placement
- Low height to fit under a stock or mildly modified hood in the front-feed config
- Front entry plenum flange allows design & fabrication of special throttle body adapters or inlet ducts for custom installs
- Clears 4th Gen Camaro & C5 Corvette cowls & hoods without modification
- High volume fuel rails & mounting hardware included with 3/4"-16 O-ring ports (8 AN)
- Lo-Ram Base Intake Manifold Plenum Top Mounting Flange Height - 5.17"
-
Specs:
- Brand: Holley EFI
- Engine: GM LS 1,2 & 6
- Finish: Silver
- Flange Style: EFI
- Front Height: 6.86" with throttle body adapter
- Fuel System Type: EFI
- Product Type: Manifold
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.