The Edelbrock 2101 and the Edelbrock 2701 are both carbureted, dual-plane intake manifolds that are part of the popular Edelbrock Performer product line.
Both of these Edelbrock intake manifolds share several similarities, and both are capable, proven options for street performance and mild racing applications.
This article aims to highlight the differences between the Edelbrock 2101 and 2701 intake manifolds to help you choose the best Edelbrock Performer dual-plane intake for your vehicle.
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There are three basic steps to choosing the right intake manifold:
- Choose your style.
- Find the right fit.
- Fine-tune your choice.
Single-plane manifolds, dual-plane manifolds, and tunnel ram manifolds are three common, popular styles.
Both the Edelbrock 2101 and 2701 are dual-plane manifolds, which means they both have two separate plenums. Each plenum feeds just four cylinders on your V8 engine.
Dual-plane manifolds have longer intake runners than a single-plane design and are ideal for low- to mid-range power production in the 1,500-5,500 rpm range, which results in good idle quality.
If you’re shopping for an intake for a high-horsepower engine or race car, you might want to consider a single-plane intake manifold. You can learn more about the differences between them by watching this short Edelbrock explainer video:
Regarding fitment, a little more than two tenths of an inch (0.220″, to be exact) separate the heights of these two manifolds. (The 2701 is taller.) Your hood clearance will depend on your specific application and setup, but it’s an important consideration in the event of any space issues you might run into.
Furthermore, Edelbrock 2101 and 2701 intake manifolds are machined specifically to mate to a Gen. I small block Chevy engine (1955-1986). Port-style matching and alignment are important when choosing an intake manifold. If you do not own a first-gen small block Chevy, there’s a good chance you should be shopping for intake manifolds other than these two.
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Edelbrock 2101
The Edelbrock 2101‘s primary differentiating trait from its 2701 cousin is its flange design at the top center of the intake manifold.
It is designed, machine-finished, and bored in such a way that it can mate with either a spread bore or square bore carburetor. The Edelbrock 2101 carries a higher price tag as a result.
A less obvious difference is its height. At 4.050″, it is slightly shorter than the 2701, which matters most for vehicles with limited hood clearance. For example, the Edelbrock 2101 can fit under a stock Chevy Corvette hood. The Edelbrock 2701 cannot.
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Edelbrock 2701
The Edelbrock 2701 mates with square bore carburetors only (unless you use a carb adapter). The 2701 costs less than the 2101 and is part of Edelbrock’s line of EPS Performer intake manifolds which feature a newer intake runner design. This runner design is tuned for peak torque at 3500 rpm on small block Chevy engines.
The 2701 makes an extra five horsepower and nine foot-pounds of torque over the Edelbrock 2101, according to the company’s own dyno testing.
The 2701’s 4.270″ height can create space problems under the hood in certain applications, and notably in Corvettes. That problem is exacerbated when a carb adapter is used by people who want to use a spread bore carburetor. An Edelbrock carb adapter will add an extra 0.85″ to your carb height.
For street applications, hood clearance is a major consideration.
If you want to retain the use of your hood, you should measure the height of your stock manifold and try to remain close to that dimension when choosing your performance intake manifold. You can accommodate higher intake manifolds by using a hood scoop, low-profile air cleaner assembly, or other means. But remember, this will result in added time and cost.
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2101 vs. 2701 Head to Head
| EDL-2101 | EDL-2701 | |
|---|---|---|
| Product Line | Edelbrock Performer Intake Manifold | Edelbrock Performer EPS Intake Manifold |
| Manifold Flange Style | Square/Spread Bore | Square Bore |
| Price (*as of 09/2019 on SummitRacing.com) | $188.95 | $124.17 |
| Engine Application | Gen. I Small Block Chevy (1955-1986) | Gen. I Small Block Chevy (1955-1986) |
| Basic Operating RPM Range | Idle-5,500 | Idle-5,500 |
| Carb Quantity | 1 | 1 |
| Intake Finish | Natural | Natural |
| Intake Manifold Height | 4.050 in. | 4.270 in. |
| Intake Material | Aluminum | Aluminum |
| Intake Style | Dual Plane | Dual Plane |
| Notes | Has un-machined boss for oil-fill tube. Accepts late model choke, water neck, air conditioning, alternator, and HEI. When using a Holley Double-Pumper series carburetor a low profile vacuum fitting EDL-8096 must be used. | Intake will not fit under stock Corvette hood. |
The factory Corvette L79 small-block manifold carburetor height is 4.19″ vs the EPS at 4.27″ The EPS will fit under the stock Corvette hoods from 1963-1979. The 0.080″ additional height is not a problem when using the recessed factory Corvette 1967 or LT1 style air cleaner.
Will the 2701 fit under a stock 1961 Corvette hood without modifications?
i have a 2701 Edelebrock Intake under the hood of my 76 C3 Corvette, and a spacer in between the carb, and intake. It is tight I admit, but it fits.
Will a 1406 edelbrock 600cfm carburetor fit on the 2701
i installed the 1905,avs2 on a eps intake with no issues.it has the same base pattern as the 1805 or 1405. these are the carbs without electric choke.
Can I put this 2701 intake on an LT1 motor with out porting holes into the intake
I have a box 80s model Chevy caprice will a 2701 intake manifold have enuff hood clearance for it.
I have a 1979 L82 C3 Corvette with the stock aluminum intake manifold and a .500″ thick nitrous plate between the intake manifold and the QuadraJet carburetor and it fits under the stock hood. I had to modify the stock air cleaner assy. by replacing the air filter element and the air cleaner lid with parts used on a 1980 buick with a 301 c.i. Pontiac engine (lid is lower). Lately, I removed the Buick air cleaner lid and replaced the air filter element with a slightly smaller K&N air filter element and a modified K&N air filter element/lid that also draws air from the top, total cfm intake is about the same as the stock air cleaner and looks good, no full size lid for the air cleaner assy.
I have a question about the difference in height between the stock L82 aluminum intake manifold and the Edelbrock 2101, does anyone out there know what it is if any? The Edelbrock 2101 intake is 4.050″, the stock L82 aluminum intake is ???? I hate to have to take the manifold off of the car just to check the height but if no one knows the answer to this question I may just have to do this myself…your help is needed! Thank you.
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