Holding The Load For The Long Haul, Choosing The Right Studs
Upgrading head studs has become the norm for most of us. The issue that comes into play is which studs to use? At what point is it better to run the best stud vs a good stud. We reached out to ARP to...
View ArticleA Guide To Mopar V8 Cylinder Head And Block Casting Numbers
We've collected casting numbers covering small-block and big-block Mopars from 1958-1993. Both Wedge and Hemi cylinder heads are included, along with A-, LA-, R-, and RB-series engine blocks.
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 ArticleVideo: LME Dyno Tests Cathedral Port Versus Rectangle Port Heads
Late Model Engines recently tested two nearly-identical 427 cubic-inch LS engines on the dyno. One had cathedral-port heads, the other had rectangular-port heads, and the dyno shows a clear difference.
View ArticleSEMA 2018: Mongoose 12-Degree 260cc LS3 Heads From Air Flow Research
Air Flow Research has combined killer performance with emissions-legality in its new LS3 cylinder-head design. LS7 valve angles, coupled with the usual durability upgrades are hard to beat.
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 ArticleRaising The Roof: The New Kaase SR-71 Heads For 429-460 Fords
Jon Kaase managed to one-up himself with his new line of big-block Ford cylinder heads, dubbed the SR-71. Like their namesake, they are incredible performers flying high above the competition.
View ArticleBudget Big-Block Cylinder Heads You Need For Your Engine
There is no arguing that big-block cylinder heads can get pricey. To make sure you spend your cash wisely, here are some great budget-friendly options.
View ArticleBoosted Coyote Pt. 3 – Livernois Race Series Top End Comes Together
The third installment of Boosted Coyote's engine build, we look at the Livernois Race Series top end and valvetrain. With the completion of this, the engine can head back home to get ready for the dyno.
View ArticleQuench: Unlocking Performance Squished Between the Piston and Head
Get quench wrong and it could spell catastrophe; Get it right and you will unlock performance. We hit up Cometic Gaskets to give us some insight into optimizing quench area.
View ArticleThe Direct Injection Flow Path – Porting Factory LT1 DI Heads
West Coast Racing Cylinder Heads is working-over direct-injection Gen v heads in the quest to improve flow. With GM's amazing ports from the factory, these heads don't have a lot of room for improvement.
View ArticleVideo: A Low-Buck Cylinder Head Rebuild You Can Do In Your Garage
Refreshing a cylinder head can be done on the cheap in your home garage or shop. You really don't need much in the way of specialized, expensive tools, if you take your time and pay attention to details.
View ArticleHeads, Cam, And Valvetrain Make Up The Soul Of Project Evil’s SBF
KBX tackles the top-end of Project Evil's small-block Ford build with canted-valve heads and a valvetrain fit for a king. With almost an inch of lift and open pressure over 1,000 pounds, this is...
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 ArticleSEMA 2019: LS, Small-, and Big-Block ‘Econoline Heads’ From AFR
During the 2019 SEMA Show held in Las Vegas, Air Flow Research (AFR) debuted its Econoline heads, a budget, entry-level cylinder head for the street guy with a big-block or small-block Chevy.
View ArticleSEMA 2019: Chevrolet Performance’s New LSX-SC Cylinder Heads
If you plan on running big boost, you need a cylinder head that can handle the pressure. Chevrolet Performance's LSX-SC head is up to the challenge.
View ArticlePro-Filer Heads Gets Exclusive With PBM Performance Products
Pro-Filer Performance Products has named PBM Products as exclusive distributor in order to streamline operations. This move will allow Pro-Filer to dedicate more resources to research and development.
View ArticlePRI 2019: Brodix IK-Series Heads Combine Performance And Price
Brodix's new IK-Series has the features you want in an aluminum head at the price of an iron head. Ranging from as-cast 180cc heads to CNC-ported 210cc heads, the IK-series covers all the bases.
View ArticlePRI 2019: AFR Introduces Budget Friendly Aftermarket LS Heads
Air Flow Research just introduced a new aftermarket LS head at PRI 2019. The new product will bridge the gap between stock and costly high-performance cylinder heads.
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