RHS

Speed Secrets: How Much Power Do You Get From Heads/Cam/Intake on an LS1?

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Speed Secrets, COMP Cams, FAST, and RHS team up on this test to see how much horsepower you can get out of 5.7-liter LS1 when you upgrade the heads, camshaft, and intake manifold. Truth be told, this combination of upgrades can be applied to an LS engine to get similar results you will soon see from the test. From the ... Read More »

Speed Secrets: Boosted 5.3 Upgrades = BIG POWER!

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The 5.3-liter GM Gen III engine came from humble beginnings as an easy to find engine at any given junkyard (due to its widespread use in GM trucks) as an alternative to an LS1, and now it’s becoming an engine prefer instead of the LSs, especially when it comes to boost. These engines seem to love to be force fed! ... 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 »

The 1,000-HP Cam: Turbo LS Power

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By Richard Holdener/Photos by Author We will skip right past the notion of whether you really need 1,000 hp, and jump right into how to get 1,000 hp. The reality is that most race cars have trouble putting four-digit power levels to the ground, let alone street cars, but since 1,000 hp seems to be the new 500 hp, let’s ... Read More »

Starting Over: RHS block foundation for Corvette LS7 Build

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When Chad Reese downshifted his 2006 Z06 and planted his foot to the floor, his intention was to show the guy in the Cadillac CTS-V his taillights. Instead, he found himself rolling to the side of the road in an embarrassing cloud of smoke. His engine wasn’t cooperating and had decided to grenade itself instead. Apparently, this is a bit ... Read More »

RHS Pro Elite LS7 heads offer HP gains with bolt-in simplicity

RHS offers its Pro Elite LS7 cylinder heads in 291cc and 307cc configurations to suit a wide range of street and race applications. They’re available fully CNC-ported or as raw castings. For older 3.900-inch-bore LS motors, RHS offers a 266cc small-bore variant as well. All Pro Elite LS7 heads are compatible with both stock and aftermarket intake manifolds.

Improving upon a set of mediocre OE cylinder heads is easy. Simply open up the bowls and back-cut the valves on a set of Gen I small-block Chevy heads, and — bam — an extra 20-30 horsepower is yours. Up the ante to a set of GM LS7 castings, however, and wringing out any additional airflow proves much more difficult. ... Read More »

Product Spotlight Video: RHS Pro Elite LS7 Aluminum Cylinder Heads

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Memphis, TN – The latest video from RHS covers all of the ins and outs of the brand’s revolutionary aluminum cylinder heads for LS7 applications. As LS engines have evolved and grown ever more popular, the airflow specialists at RHS have kept pace by developing a new line of heads specifically for the LS7 power plant. In this video, COMP Performance Group ... Read More »

Product Spotlight Video: RHS 23° SBC Intake Manifold

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Memphis, TN – In this video, COMP Performance Group™ VP of Engineering, Brian Reese, discusses the features and state-of-the-art engineering techniques that went into the creation of the RHS® 23° SBC Intake Manifold. There are a lot of Small Block Chevy intake manifolds on the market, but many were designed years ago. The RHS® 23° SBC Intake Manifold stands out ... 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 »