Home | Tag Archives: Cylinder Heads

Tag Archives: Cylinder Heads

RHS® Pro Action™ Rectangle Port Aluminum Cylinder Heads for GM LS3 Applications

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  Memphis, TN – RHS® introduces its new Pro Action™ Rectangle Port Aluminum Cylinder Heads as a premium LS3 replacement head, ensuring great power on any performance or stock engine build. Available bare or assembled with premium COMP Cams® valve train components, these LS3 heads are engineered with the same architecture as the factory head, and all stock components will ... Read More »

Speed Secrets: Cathedral vs Rectangular Port Cam For Your 408 Stroker Engine Cam Swap

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What happens when you upgrade from a factory camshaft to an aftermarket cam when you do the swap on a 408 stroker engine? Digging even deeper, what happens when you upgrade to an LS3 rectangular port style camshaft, on a stroker that’s equipped with cathedral-port cylinder heads? Let’s find out if this combination will work! When you look at the ... Read More »

Speed Secrets: Making Easy 350 SBC Power with Vortec Heads!

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Richard Holdener with Speed Secrets has paired up with Comp Cams to showcase some very wild builds over the years. A good portion of which required a fair amount of funding to accomplish, but a decent amount of horsepower gains doesn’t have to break the bank or leave your wallet empty. Starting off with a 350 cubic inch crate engine ... Read More »

Speed Secrets: L82 Small Block Chevy Heads/Cam/Intake Upgrades!

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When picking out cylinder heads to upgrade an engine, in general most people think in terms of flow. However there are many more considerations to be made about such a big decision that can make or “brake” a good engine build. To demonstrate the importance of choosing the right cylinder heads, Richard Holdener teamed up with Comp Cams and RHS ... Read More »

More Than Cams

Think of this stock, rebuilt 302 Ford as a blank canvas, with nothing but power potential!

Words and Photos: Richard Holdener By now, everyone should realize that COMP Cams offers an impressive array of cam grinds for most performance applications. You would be hard-pressed to find an application where they didn’t offer an off-the-shelf cam grind to suit your needs, but they also offer custom grinds for those wanting something special. After the factory adopted them, hydraulic-roller ... Read More »

GM High-Tech Performance – Room To Grow

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In the April issue of GM High-Tech Performance, the editorial team dyno’s its 376c.i. Camaro engine featuring a variety of COMP Performance Group™ components. The goal is to learn exactly what the power gains are with the aftermarket goodies. The power plant features RHS Pro Elite™ LS7 Cylinder Heads, a FAST™ LSXR™ 102mm Intake Manifold and Big Mouth™ Throttle Body, along ... Read More »

GM High-Tech Performance – LS7UP

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In their July 2012 issue, the editorial staff at GM High-Tech Performance makes a serious LS upgrade. Read about how they dig into the Racing Head Service Pro Elite™ Aluminum LS7 Cylinder Heads and install them on a 2010 LS3 Camaro. The project also features a FAST™ LSXR™ 102mm intake manifold and the COMP Cams LS Trunion Kit. Click on the link ... Read More »

Chevy High Performance – LQ = HP

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In the February 2012 issue, the Chevy High Performance staff drops a 6.0L LQ9 GM Gen III truck engine, originally found in a variety of mid 2000s General Motors trucks and SUVs, into a ’66 Chevelle. The engine package features an XR281HR camshaft from COMP Cams, along with RHS Pro Action Cylinder Heads with Clean Cast Technology™ and a 168-tooth internal ... Read More »

GM High-Tech Performance – Clean Cast And Fast

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In the January 2012 issue, the team at GM High-Tech Performance bolts a set of aluminum RHS Pro Action™ Cylinder Heads featuring Clean Cast Technology™ to an LS1 engine in an attempt to create true budget performance. The package is finished off with a custom grind hydraulic roller cam, along with a set of pushrods a new adjustable timing set, ... Read More »

Super Chevy – Swap Til Ya Drop

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Richard Holdener and Super Chevy magazine net a 43 horsepower gain without losing bottom-end power by swapping in RHS LS1 Cylinder Heads. Click on the attachment below to read the full article. We also encourage you to pick up the August 2011 issue of Super Chevy magazine. Click on the link to see the Super Chevy PDF. Read More »