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RHS® LS Aluminum Race Block
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Airflow technology leader introduces a high performance GM LS engine block for radical street & all-out racing applications
GM LS engines have truly set a new standard for V8 performance and durability. However, there are limitations for the aftermarket shopper when it comes to finding a high performance replacement for the factory block. Aware of this dilemma, the research and development team at RHS® went to work designing and testing several different versions of GM LS engine blocks until they found the optimal solution for performance engine builders and racing enthusiasts.
The LS Race Block is designed for added clearance and mass customization. Available in both standard (9.240”) and tall (9.750”) deck heights with an extra-thick deck surface (.750”), this RHS® block features a raised cam centerline and priority main oiling via an oil galley that is shifted outboard to allow rod clearance for a much larger stroke (4.600”) while also minimizing windage in the crankcase. Using computer-aided design, the cylinder walls are Siamese cast with press-in spun cast iron liners. Cylinder liners are available in both standard deck (5.67”/5.87” – same as the LS7) and tall deck (5.94”/6.38”) lengths. Also featured is a 6-bolt head design with a full water jacket around each cylinder (based on the LS7 design).
For quality control assurance, RHS® performs a CT scan on each block (similar to a medical CAT scan) to maintain maximum casting precision and consistency. Combine all of these features with a superior finish quality, thanks to the RHS® patented Clean Cast Technology™, ultra-precise computer aided design and extra surface material to allow custom machining, and you’ve got a GM block that sets a new benchmark for LS horsepower, torque and durability.
For more information about the RHS® LS Race Block or any other RHS® product, call us at 1-877-776-4323, or visit us online at www.racingheadservice.com.
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RHS® Pro Elite™ SBC 23-Degree CNC-Ported Iron Cylinder Heads
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Airflow technology leader extends Pro Elite™ series with new CNC-ported cylinder heads designed to maximize the performance of 360-434c.i. engines
Engineers at RHS® have recently designed the only Small Block Chevy 23-degree cast iron head for 360-434c.i. engines that is CNC-ported from the factory. The precision accuracy and durability of the RHS® Pro Elite™ SBC 23-Degree CNC-Ported Iron Cylinder Heads are derived not only from the CNC-porting of the intake and exhaust runners but the CNC-ported combustion chamber, as well.
The CNC-ported 240cc intake and 85cc exhaust runners optimize airflow volume and velocity while the 53cc combustion chambers are also CNC-machined to relieve the valve shrouding that occurs when the edge of a valve is in close proximity to the combustion chamber wall. Overall, the full CNC-porting process provides more consistent runners and smoother port-to-chamber transitions, thereby increasing both airflow efficiency and horsepower. In addition, these new heads from RHS® are designed to use offset rockers in order to maximize the intake window at the pushrod opening for increased airflow.
As with the rest of the Pro Elite™ family, these SBC iron heads come with a host of unique features, including premium bronze valve guides and a multi-angle valve job. Also, ductile iron valve seats are inserted to better prevent seat and guide wear with alcohol and other racing fuel applications. The ductile iron 2.100`` multi-angle intake and 1.625`` radiused exhaust valve seats allow for superior airflow and improved atomization with racing fuels. In addition, the heads feature a refined water jacket for more even water flow to reduce hot spots in the engine. For racing classes that mandate the use of cast iron cylinder heads, RHS® has designed the ultimate advantage by utilizing the latest in airflow technology.
For more information about the RHS® Pro Elite™ SBC 23-Degree CNC-Ported Cylinder Heads or any other RHS® product, call 1-877-776-4323, or go to www.racingheadservice.com.
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RHS® Pro Action™ SBC 23-Degree Style Raised Runner Cylinder Heads
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rhsproactionsbc23-degreestyleraisedrunnercylinderheads.pdf
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New cylinder head styles from RHS® feature 220cc runner volumes and are available in either “as cast” or P-Port configurations
Finding a top performing cylinder head and still staying within the rules of class competition may be one of the biggest challenges engine builders face today. The RHS® Pro Action™ Small Block Chevrolet 23-Degree Style Raised Runner Cylinder Heads incorporating the “as cast” 220cc runner volume were originally designed for circle track competition, but these are also the “winning ticket” for Nostalgia Drags Junior Class B Fuel competition.
The RHS® Pro Action™ SBC 23-Degree Style Raised Runner Heads are cast iron heads that have been angle milled from the factory to 21-degrees, which significantly improves the performance potential of the head. This cost saving modification is acceptable by most race sanctioning bodies and allows a two-degree plus or minus valve angle change from the stock Small Block Chevy placement. In addition, these heads are available in P-Port versions, which feature added material in all the critical areas so that customers can port the heads to meet their specific requirements. The RHS® Pro Action™ 23-Degree Style Raised Runner Heads are available in three configurations, including the standard “as cast” version with 220cc intake runner port volumes, raised runner P-Ports with seats and guide holes machined and raised runner P-Ports without machined seats or guide holes.
For more information about the RHS® Pro Action™ SBC 23-Degree Style Raised Runner Cylinder Heads or any other RHS® product, call us at 1-877-776-4323, or visit us online at www.racingheadservice.com.
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RHS® Offers Premium Valve Train Kits & Components
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rhsofferspremiumvalvetrainkitscomponents.pdf
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With joint R&D efforts, RHS® & COMP Cams® offer the ideal “one-two punch” of advanced cylinder head technology with premium valve train components
Many performance experts will tell you that cylinder heads are only as good as the supporting valve train components matched to them. But what if the cylinder heads and valve train parts were designed together, with each maximizing the horsepower potential of the other? Airflow engineers at RHS® have joined forces with valve train technology leader, COMP Cams®, to discover the optimal cylinder head/valve train combination for each performance application that RHS® serves.
By combining R&D efforts, each product innovation from RHS® is designed with an ideal valve train combination to match. In doing so, racers and street enthusiasts alike will be given maximum horsepower and torque for each specific application – tested rigorously through advanced dyno and Spintron® testing techniques in the COMP Performance Group™ R&D center in Memphis, TN. And in addition to the cylinder head assemblies, RHS® now offers a turn-key solution for replacing valve train components via race-proven “Cylinder Head Assembly Kits.” Both the assemblies and kits are available on the RHS® website at www.racingheadservice.com.
For more information about the RHS® cylinder head assemblies with premium valve train components from COMP Cams® or any other RHS® product, call us toll free at 1-877-776-4323, or visit us online at www.racingheadservice.com.
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RHS® Releases New Master Catalog
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Airflow technology leader introduces a comprehensive product catalog that includes informative technical information & a cylinder head reference guide
Featuring 48 full color pages of the latest RHS® products with images and application/part number listings, the new RHS® product catalog features the latest in cylinder head and engine block technology coupled with an 8-page cylinder head reference guide insert. The catalog is broken down into distinct sections that cover application-specific products, including engine blocks, cylinder heads, intake manifolds, gaskets, valve train components and much, much more.
In addition to new product innovations, RHS® also introduces a new line of cylinder head “Parts Kits” that include everything needed to assemble a set of RHS® cylinder heads for your engine block. Along with the new parts kits, the catalog features a highly-informative Frequently Asked Questions (FAQ) section, as well as several other resource sections. Whether you’re a novice performance enthusiast or a cylinder head expert, the new RHS® catalog will give you the most comprehensive guide to cylinder head technology in the industry.
This master guide to RHS® products and supporting information is available in both printed format and as a downloadable PDF on the RHS® website. For more information about the RHS® Product Catalog or any other RHS® product, call us at 1-877-776-4323, or visit us online at www.racingheadservice.com.
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USCS Modified Series Adds RHS® To Sponsor Lineup
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rhs2009uscssponsorship.pdf
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Legendary manufacturer of cylinder head technology enters into sponsorship agreement with increasingly popular Modified racing series
A company founded by competitive performance enthusiasts, RHS® is constantly seeking new ways to meet the needs of racers and performance engine builders alike, which makes the company a perfect match for the USCS Modified Series. Under the recent sponsorship agreement, RHS® will give a $50 product gift certificate to the winner of each weekly second heat race during the 2009 USCS Modified Series racing season.
Along with the RHS® Second Heat Race Award, the cylinder head manufacturer will also provide year-end banquet awards in the form of product gift certificates to the top three finishers (1st - $500, 2nd - $250, 3rd - $125) in the 2009 USCS Modified Series point standings. The top ten finishers of the new USCS Weekly Series will also receive awards at the year-end banquet.
The agreement also states that RHS® will be named as the “Official Cylinder Heads” that power the 600+ horsepower racing engines of the USCS Modified Series cars for 2009. Only USCS Modified Series competitors that display the approved RHS® decal on their race cars will be eligible to reap the benefits of the 2009 contingency sponsorship awards.
A member of the COMP Performance Group™, RHS® designs and manufactures high performance cylinder heads and engine blocks. For more information about RHS® events or products, call us toll-free at 1-877-776-4323, or visit us online at www.racingheadservice.com.
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