In 1955, Chevrolet changed everything. For the first time, new car buyers could walk into a showroom and purchase a great looking car with decent handling and a powerful overhead valve V8. “Tri-five” Chevys have become icons of hot rod culture, but their power and handling no longer hold up in comparison to modern muscle machines. Now Hotchkis Performance has a great way to improve the handling and road feel of your 1955-57 Chevrolet without resorting to expensive and complicated Mustang II based systems, the all-new Hotchkis Sport Sway Bar Package for Tri-Five Chevys.

Rather than replacing all the factory suspension with a totally different system that may not have been designed to support a heavy full-size Chevy, the Hotchkis Sport Sway Bar Package works with factory A-arms and other hardware to dramatically improve cornering performance and traction. The package offers fine tunable rear roll stiffness previously unavailable for the classic Chevy Tri-Fives. Cars with wider rear tires and high horsepower engines will greatly benefit from vastly improved stability.

RHS™ Pro Action™ 24-Degree Big Block Chevrolet Cylinder Heads are the right choice for serious performance applications such as street rods, muscle cars, drag racing, oval track racing and marine. Available in aluminum or cast iron, these cylinder heads are offered with 320cc or 360cc intake port runner volumes and a 119cc combustion chamber size - yielding exceptional out-of-the-box performance gains over other performance heads.

RHS™ Pro Action™ Big Block Chevy Heads outflow competitive aftermarket heads by up to five percent and offer superior “as cast” port and chamber finish quality, a great benefit regardless of whether or not you intend to further modify your heads. Important design features include extra thick deck surfaces, a highly efficient water-jacket design, radiused exhaust valve seats and hardened valve seats. In addition, the unique multi-angle inlet and radius exhaust valve seats outflow the competition by up to five percent. The improved valve guide design delivers tighter tolerance and extended durability.

PML announces an aftermarket differential cover for the Chevrolet SSR. The cover features extra capacity, sand cast aluminum construction, and a drain hole with a magnetic drain plug. PML designed this cover for the Torsen 10 bolt rear axle found in 2003-06 SSR with automatic transmission and other GM vehicles such as Trailblazer, Envoy, Colorado, Canyon, Olds Bravada, and Buick Renier.

This differential cover increases fluid capacity by 0.5 quarts over stock. The increased capacity reduces temperatures, lessening wear and tear on the differential. On the outside of the cover, raised fins help keep oil cool and add a custom look.

The sand cast aluminum construction adds 3/16-inch thick wall construction to add strength to the differential housing and 3/8-inch thick gasket flange that will not bend when bolts are tightened. The gasket flange is machined for a secure seal with RTV or factory reusable gasket.

Proform’s two-piece valve covers for Chevy small-block engines are so revolutionary they have been awarded a patent! The Bow-Tie and Chevrolet emblems are displayed in relief within a machined looking background panel. The diagonal angle of the top section ensures no oil mess while adjusting your valves or inspecting your valve train with the engine running. The 2-piece separation gaskets provide a leak tight seal, and there is no need to risk damaging your cork valve cover gasket. Proform/Specialty Auto Parts, U.S.A., Inc. uses these GM Trademarks under license, manufacturing the parts with quality that is worthy of the brand, and they have just been awarded a 14-year U.S. Patent (#D543,998 S) on these unique valve covers.

Answering the demand for bolder sound outside the vehicle - while still maintaining a comfortable tone inside - CORSA(r) Performance has developed the new Xtreme exhaust system for 2005-2007 Corvettes. 

The Corvette C6 Xtreme Axle-Back exhaust with Four Pro-Series 3.5-inch tips features CORSA’s patented Reflective Sound Cancellation(tm) (RSC(tm)) technology, which allows for a full-bodied aggressive sound during acceleration and a mellow, comfortable interior note at cruising speeds. 

“The Corvette community has been asking for a deeper, more aggressive sound, but still with the interior sound quality that our RSC technology provides,” said Jim Browning Sr., founder and president, CORSA Performance Exhausts.  “Our innovative Xtreme exhaust flows and performs just like our traditional Sport exhaust, but it’s bolder, badder, a little louder...and perfect for Corvettes.  The system is a full 3 decibels louder outside the vehicle but still sounds good inside the car for comfortable cruising!”

Belltech now offers their low profile Transmission Cross-member for all 2004+ Colorado’s / Canyon’s. A gain of 2.25” of clearance is achieved using the Belltech’s Cross-member. Belltech’s low profile design reduces the risk of bottoming out on extremely lowered trucks. Belltech cross-members are designed to exceed OEM load specifications and are direct replacement of the factory unit. All cross-members are heliarc welded and powder coated for a lasting finish.

Part # 6963 MSRP $328.60

KW suspensions announces their Variant 3 stainless steel constructed coilover for the 2006+ Z06 Chevrolet Corvette. The KW coilovers replaces the factory transverse leaf springs and stock shocks with a complete coil-over suspension solution.

The KW suspensions coilover enables the owner to lower their vehicle 0-30mm on the front axle and 0-30 mm on the rear axle and retains enough travel to handle maximum load and dynamic loads during driving. Low speed rebound and compression are independent reacting, while the high-speed set-up has been pre-set by KW engineers.

All KW coilovers pass stringent German TUV safety and quality testing standards. Each kit is sold TUV approved.
Part # 352261010

In 1955, Chevrolet changed everything. For the first time, new car buyers could walk into a showroom and purchase a great looking car with decent handling and a powerful overhead valve V8. “Tri-five” Chevys have become icons of hot rod culture, but their power and handling no longer hold up in comparison to modern muscle machines. Now Hotchkis Performance has a great way to improve the handling and road feel of your 1955-57 Chevrolet without resorting to expensive and complicated Mustang II based systems, the all-new Hotchkis Sport Sway Bar Package for Tri-Five Chevys.

Rather than replacing all the factory suspension with a totally different system that may not have been designed to support a heavy full-size Chevy, the Hotchkis Sport Sway Bar Package works with factory A-arms and other hardware to dramatically improve cornering performance and traction. The package offers fine tunable rear roll stiffness previously unavailable for the classic Chevy Tri-Fives. Cars with wider rear tires and high horsepower engines will greatly benefit from vastly improved stability.

The Chevrolet Cobalt is designed by GM with a strong, stiff platform for crisp handling and a smooth ride. It is available in a variety of distinct trim levels in either a two-door coupe or a four-door sedan.

K&N Engineering has designed a new cold air intake (69-4517TTK) in textured black for the 2006 and 2007 Chevrolet Cobalt 2.4 liter engine. Built for performance and show K&N Typhoon Air Intake Systems are proven on a rear-wheel dynamometer to increase horsepower and torque.

K&N dynamometer test shows a 15.94 horsepower gain @ 5900 RPM for this K&N air intake. The radius adapter helps provide smooth air flow into the intake tube. The 69-4517TTK uses the factory Mass Air Flow sensor and a Lifetime K&N High Flow Air Filter (RU-5147).

Centerforce is proud to introduce this New Dual Friction clutch assembly for 2002 to 2005 Chevrolet Cavalier 2.2L and 2005 to 2006 Chevrolet Cobalt 2.2L.  This new clutch assembly replaces the stock pressure plate with a more reliable assembly with a higher holding capacity that is designed as a direct bolt in for perfect fit and function.  Centerforce strives to provide the best products on the market at any performance level by using patented processes and constantly testing different materials and designs to find the best combination.  This new application is now available as a Dual Friction® clutch assembly for use in high torque street driving and racing applications and a Centerforce I for a high quality stock replacement with basic modifications . The Dual Friction part number is DF161533 (Pressure Plate, Disc, Slave Cylinder W/Release Bearing & Alignment Tool Included) the Centerforce I part number is CF331516 (Pressure Plate, Disc, Slave Cylinder W/Release Bearing & Alignment Tool Included).  Please contact any Centerforce dealer or Centerforce directly with questions at 928/771-8422 or visit them online at http://www.centerforce.com.

Hankook Tire America Corp. (http://www.hankooktireusa.com) is pleased to announce its official tire sponsorship of Chevrolet’s Rev It Up™ 2007: Where Drivers Come to Play (http://www.revitup.com). Hankook will provide more than 500 of its Ventus brand of high-performance tires for five different Chevrolet models. As the “World’s Largest Performance Driving School and National Racing Competition,” Rev It Up 2007 promises to allow amateur racers the opportunity to compete with experienced professionals in a challenge across six cities nationwide.

“Through this driving experience, Hankook Tire has the opportunity to reach 16,000+ automotive enthusiasts at one time,” said Bill Bainbridge, director of brand communication for Hankook Tire. “Not only will competitors be able to experience the vehicle’s performance, but our tire’s handling and ride characteristics as well.”

Hankook will provide Ventus S1evo K107, Ventus V4ES H105, Ventus AS RH07, and Ventus R-S2 Z212 performance tires for five Chevy models including the Impala SS, Cobalt SS Supercharged, TrailBlazer SS, Silverado Pickup and Equinox Sport.

COMP Cams® announces the release of 11 new intake and exhaust valves in a variety of diameters and stem lengths for competition-minded Small and Big Block Chevrolet engine builders. Made from 21-4N forged high-strength steel alloy with 50 HRc minimum hard tips (which eliminates the need for a lash cap), these valves are state-of-the-art, delivering tremendous performance and durability. Recommended for all hydraulic, mechanical and roller lifter applications, these valves feature hard chrome-plated 11/32-inch stems with proprietary oil retention surfacing, not thin flash plating.

For performance enthusiasts looking for improved power, COMP Cams® new Sportsman Valves are just the ticket. To increase flow without increasing the valve diameter, high flow underhead fillet relief was designed in. In addition, the spiral-polished fillets generate a higher flow rate with reduced radial crack propagation, increasing their resistance to failure. COMP Cams® Sportsman Valves include all of these high-tech advancements, yet are affordable for any budget-minded engine builder.