The Iron Dome: Iron Cylinder Heads’ Relevance In The 21st Century
Cast-iron cylinder heads aren't as flashy as their aluminum counterparts, but they still work very well. Iron's exceptional strength and low cost has kept it around in a market full of aluminum heads.
View ArticleAFR’s Enforcer Cylinder Heads Raise The Bar For Budget Performance
When it comes to performance, Air Flow Research has always been at the top of the list. Now, AFR is applying its knowledge to a line of budget-friendly cylinder heads.
View ArticleVideo: Head Stud Installation Tips With Engine Pro And ARP
Head studs are very important when it comes to making sure cylinder heads are sealed to an engine block. Mike Cunningham and Jamie Hamm discuss head stud installation in this video from Engine Pro.
View ArticleVideo: Looking At The Interesting History Of Endyn’s Larry Widmer
This short documentary highlights the background and history of Endyn's Larry Widmer. Widmer is one of the industry's most insightful and pioneering minds in cylinder head development.
View ArticleBavarian Respiratory Therapy: Boosting The BMW S54 Cylinder Head
This BMW S54 inline-six-cylinder head gets prepared for boost before hitting the drift circuit. Some well-engineered and executed airflow improvements result in big horsepower gains.
View ArticleAwesome Airflow: Project Number Cruncher’s Dart Pro1 LS7 Top End
Project Number Cruncher's naturally-aspirated engine needed some serious airflow. To make that happen we selected Dart's Pro1 LS7 cylinder heads and intake.
View ArticleBudget Friendly Power: The LS1 Enforcer Cylinder Heads From AFR
AFR's new Enforcer cylinder head for the LS1 engine packs plenty of power for a small price. The Enforcer provides plenty of flow for NA applications looking for more power.
View ArticleVideo: On The Dyno With Edelbrock’s Gen-III Hemi Cylinder Heads
The Gen-III Hemi is an impressive powerplant, but even the mighty Hemi can benefit from a set of aftermarket cylinder heads. Prestige Motorsports dyno tests Edelbrock's RPM Hemi heads to see what they...
View Article2020 Product Showcase: World’s CNC-Ported Merlin Big-Block Heads
World Products' Merlin cast-iron cylinder heads have been a staple in the aftermarket. Now they are getting even better with an advanced CNC machining program from HVH.
View ArticleTech Time: 10 Tips For Buying Cylinder Heads
Selecting the right set of cylinder heads goes beyond just bolting on a pair that fits. We cover 10 tips you need to know when buying heads.
View ArticleQuick Tech: Clay Intake Radius On A Flow Bench; What’s It Worth?
When testing a cylinder head on a flowbench, sharp edges and blunt transitions can cause turbulence. Smoothing those out for more real-world conditions is a critical part of proper testing.
View ArticleMaking Power: Project Number Cruncher’s SAM Tech-Built Top End
Project Number Cruncher's 427 cubic-inch LS engine, built by Sam Tech, is one stout mill. Join us for a tour of the engine's top end, valvetrain, fuel injectors, and the final dyno output.
View Article24 Year-Old Facelift: Refreshing GT40 Cylinder Heads With Engine Pro
With some parts from Engine Pro and a little elbow grease, we take these old small-block Ford heads and give them a new lease on life. You can do the same at home with just a little effort.
View Article1,000HP LSX376-B15 Part 1: Building The Long Block At Chevy Perf.
We’re going after big numbers to help our new 2014 Camaro "True SStreet" get down the quarter-mile in the 8-second range. So, thus begins the build of our 1,000+ horsepower, Whipple supercharged behemoth.
View ArticleWhy Cylinder Head Low And Mid-Lift Flow Numbers Are Important
Low and mid-lift flow numbers are what help a set of heads make power. We look at what these numbers mean and why they're so important.
View ArticleImproving The Best: Testing MPR-Built Gen-3 Coyote Cylinder Heads
The Gen-3 Coyote cylinder head is one of the best OEM cylinder heads to ever come out of the Blue Oval. MPR makes them even better with CNC port work and a host of aftermarket parts.
View Article“What I Learned Today” With Jeff Smith — Blind Bolt Hole Blunders
When moving to a block with blind bolt holes after using ones where the fasteners extend into the water jackets, there are some new things to consider.
View Article“What I Learned Today” With Jeff Smith — Keeping Water And Oil Apart
Keeping water and oil separate is the job of the head gasket. However, the head gasket isn't the only component that keeps the two apart.
View ArticleSEMA 2021: Air Flow Research Debuts Its CNC Gen-III Hemi Head
AFR has released its entry into the Gen-III Hemi world, with all-new, fully CNC-machined castings. The AFR cylinder heads will also be available as-cast, but still with big flow numbers.
View ArticlePRI 2021: Brodix Now Offers Direct Fit 5.3 LS Cylinder Heads
The LS engine continues to be one of the most popular mills around. Brodix's new 5.3 LS cylinder heads are a direct replacement for the OEM heads.
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