cylinder-heads

Edelbrock 618268 - Engine Cylinder Head

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$2,025.95

Discontinued

This product has been discontinued by the manufacturer.

This is a universal fit product

  1. That means this product doesn’t have fitment for any specific vehicle.
  2. If fitment is applicable for your application, be sure to check compatibility with the other components.
Authorized Dealer
white carb warning, not legal street use in California Not for sale or street use in California.

About this product

Part #: 618268

Intended for high output, large cubic inch racing engines with 4.84" bore spacing, this head is an improvement over existing 18° designs, such as the Big Chief & Big Duke. The casting is made from A-356 aluminum and is Hot Isostatic Pressing processed (HIP) for superior strength, durability, dimensional stability and exceptional finish quality. These cylinder heads feature CNC ported intake ports and a raised exhaust runner design for improved flow efficiency. Chambers are fully CNC ported and extra material is included in the deck to allow fine tuning of the combustion chamber design, if desired. Edelbrock and Pat Musi worked with Jesel to improve the valvetrain geometry, delivering Pro-Stock level technology on engines up to 10,000 rpm. Jesel's shaft-mounted system, #KPS-387154, is made from lightweight 7000 series aluminum and features a one-piece stand design that pairs the intake and exhaust stands for improved valvetrain stability. The intake features a 1.820" long fulcrum and is available in 1.60:1 - 1.95:1 rocker ratios; the exhaust features a 2.000" long fulcrum and available in 1.60:1 - 2.00:1 rocker ratios. Requires Edelbrock valve covers #4259. Match with Edelbrock Victor CNC Series manifolds #28003 and #28005. Pro-Port version available for custom porting.

More Details

Cylinder Head TypeStandard
EmissionNon-Emissions
Engine Make/SizeChevy Big Block (540-632)
FinishCast Aluminum
PreparationRequires Professional Preparation (Bare)
TypeBare
UsageRacing
Additional Documents
  1. Installation Instructionspdf

See what our community says about edelbrock products

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What made you choose this particular product?
Reliability and power delivery
What were you trying to accomplish by adding this product?
More horsepower, but not upsetting the balance of the platform
Was it easy install? Any installation tips that will help others?
I had it professionally installed.
Once you’ve had a chance to use the product, did it meet your expectations?
Exceeded my expectations, was afraid the balance of the platform would be upset but I'm glad I was wrong!
View on Tyler's build
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What made you choose this particular product?
It fit the price range I was willing to pay, vs the $600+ quote I was offered to have the original intake repaired. Also, I intend to reuse the original Carter-built M4MC Quadrajet carburetor, which this intake will accept.
What were you trying to accomplish by adding this product?
Replace the original intake manifold that was cracked during removal
View on Kenny's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
More power baby!
What were you trying to accomplish by adding this product?
Horsepower!
Was it easy install? Any installation tips that will help others?
Professional done
Once you’ve had a chance to use the product, did it meet your expectations?
Better than expected
Any additional comments?
Have someone do it.
View on Cody's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
The completeness of the kit, the quality of the product, and it was something different from other blowers
What were you trying to accomplish by adding this product?
more horse power and torque
Was it easy install? Any installation tips that will help others?
About as bolt on as a super charger could get
Once you’ve had a chance to use the product, did it meet your expectations?
There has been ups and downs. The install went smoothly but had some belt issues early on. A note on this is to make sure you have a serpentine belt laser alignment tool. Do everything you can to ensure all your pulleys are as spot on as possible. The belt is super finicky. Also upgrade your tensioner and upgrade your harmonic balancer if it makes sense. With belt issues sorted... the thing eats, sounds amazing, and is great!
Any additional comments?
Buy an upgraded belt tensioner and use the opportunity to upgrade/swap your harmonic balancer. The belt tolerances, at least in my case, don't leave much room for any error.
View on Jeff's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Performance
What were you trying to accomplish by adding this product?
More horsepower
Was it easy install? Any installation tips that will help others?
Professionally installed
Once you’ve had a chance to use the product, did it meet your expectations?
Yes
View on Kris's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About Edelbrock

Founded in 1938, Torrance-based Edelbrock, LLC is recognized as one of the nation’s premier designers, manufacturers and distributor of performance replacement parts for the automotive aftermarket. Edelbrock produces their core products in the United States of America using state-of-the-art equipment in their world class manufacturing facilities. Edelbrock, LLC encompasses five locations in Southern California and one location in North Carolina totaling more than 500,000 square feet.

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we ship worldwide!

Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.

+ FREE GROUND SHIPPING ON U.S. ORDERS OVER $99
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