What’s Old Is New Again — Early Hemi Engines Deliver Big Power
While not as common or easily recognized as the 426 Hemi from the mid-'60s, the early Chrysler Hemi engines are still alive and kicking. The early Hemi engines were what originally put the Hemi on the...
View ArticleGet Into The Groove — Contain Combustion With O-Rings Or Fire Rings
When power-adders raise combustion pressures to extreme levels, engine builders look for a little help from O-rings or fire-rings. The little metal wires can make a significant difference in...
View ArticleOpen Up The Airways With Dart’s New PRO1 LS7-Compatible Heads
Give your LS7 more breathing room with Dart's new LS7-compatible heads and intake. We take a look at Darts new CNC aluminum heads and intake manifold
View ArticleWhat’s Old Is New Again — Early Hemi Engines Deliver Big Power
While not as common or easily recognized as the 426 Hemi from the mid-'60s, the early Chrysler Hemi engines are still alive and kicking. The early Hemi engines were what originally put the Hemi on the...
View ArticleGet Into The Groove — Contain Combustion With O-Rings Or Fire Rings
When power-adders raise combustion pressures to extreme levels, engine builders look for a little help from O-rings or fire-rings. The little metal wires can make a significant difference in...
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 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 ArticlePRI 2018: Frankenstein Engine Dynamics F-Series LS Heads
The Frankenstein F-Series LS heads were built to fill a gap in the market. We take a look at these heads and what sets them apart from the competition.
View ArticleGet Into The Groove — Contain Combustion With O-Rings Or Fire Rings
When power-adders raise combustion pressures to extreme levels, engine builders look for a little help from O-rings or fire-rings. The little metal wires can make a significant difference in...
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 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 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 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 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.
View ArticlePRI 2021: Chevrolet Performance Improves On COPO LS Heads
Chevrolet Performance continues to improve its products. We take a look at the redesigned COPO supercharger heads for the LS.
View Article