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Description
Base Manifold and Rail Kit for Lo-Ram - LS1/LS2/LS6 - Satin Finish with Single Injector manifold and fuel railsBase Manifold and Rail Kit for Lo Ram LS1 LS2 LS6 Holley EFI Intake Manifold 396, 402, 427, 454, 502 for 4500 Style Flange, Rectangular Port Heads Overview Holley EFI is excited to launch four new multi point fuel injection intake manifolds for the big block Chevy. These new intakes are available to fit oval or rectangular port heads, and 4150 or 4500 style throttle bodies. These Intakes are ideal for converting your big block high performance or
Base Manifold and Rail Kit for Lo-Ram - LS1/LS2/LS6Holley EFI Intake Manifold 396, 402, 427, 454, 502 for 4500 Style Flange, Rectangular Port Heads
Overview
Holley EFI is excited to launch four new multi-point fuel injection intake manifolds for the big block Chevy. These new intakes are available to fit oval or rectangular port heads, and 4150 or 4500 style throttle bodies. These Intakes are ideal for converting your big block high performance or racing engine from carburetion to fuel injection. These intake manifolds were computer designed and dyno proven to produce more horse power and torque than other EFI manifolds. Each manifold package includes anodized and laser etched fuel rails, and two sets of mounting brackets (brackets allow use of 1.48" or 2.56" O-ring to O-ring injector lengths).
Features:
- Base manifold and rail kit for Low-Ram 300-620 allows you to select your components individually as you build your intake system
- Designed for GM LS Gen III and IV engines equipped with GM LS1/2/6 (cathedral port) cylinder heads
- Low height to aid the use of a plenum mounted air-to-water intercooler in a top-feed configuration
- Designed for forced induction (supercharged or turbocharged) engine applications with peak power at 7000-8000 rpm depending on the application
- High volume fuel rails and mounting hardware included with ?????-16 o-ring ports (8 AN)
Details:
- Color: Silver
- Construction: Cast
- Engine: GM LS1/LS2/LS6
- Finish: Silver
- Fuel System Type: EFI
- Injector Quantity: Single
- Inlet Location: Top
- Manifold Type: Lo-Ram
- Recommended Use: Forced Induction
- RPM Power Band: 3500-8000 RPM
- Warranty: Limited 90 Day
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4.3 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
What you see is what you get!
Color: 01-black, Size: Large
Fits great, fabric is amazing, turtle neck fits tight, and the quality is amazing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
★★★★★ 4
A true turtleneck that retains a snug high neck.
Color: White, Size: X-Large
I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
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Reviewed in the United States on July 30, 2025
★★★★★ 5
Quality,warmth and fit
Color: Royal Blue, Size: Small
Really top quality. This is my 4th purchase of these Really great sweaters.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Nice Sweater
Color: 01-black, Size: Large
This is a very nice sweater. It’s reasonably thick and warm. Looks nice. I like it.
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Reviewed in the United States on January 18, 2026
★★★★★ 5
Nice turtle neck sweater
Color: Royal Blue, Size: Small
It was true to size a perfect fit and the color is beautiful. Nice sweater for the amount paid.
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Reviewed in the United States on January 11, 2026
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