Big block Chevy Aluminum Blocks and Big Block Replica
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There was a time when all the Chevy racing engines were based on the Chevy big block engine. This culminated in the CanAm engines, which led many really good after-market components, including big block chevy aluminum blocks.These engines developed up to 600 bbhp without turbochargers.
These big block replicas were pretty robust, particularly the 454 big block replica. They were used in all forms of motor sport and in many hot street-legal autos. In those days, street-legal was easy to achieve, but not these days. They were very popular, and you can even get a chevy big block replica Liberty Classics model.
Team Chevy Introduces New Racing Engine
The motorsport scene in the United States can be said as arguably one of the most competitive in the world. Season after season, racing teams always come up with more and more improvements for their vehicles.
The NASCAR sanctioned races are the most competitive races in the United States and teams are always pursuing victories by improving their vehicles’ performance. Team Chevy is one of the teams going for the win on every race they participate in.
Recently, the team introduced the Impala SS race car at the NASCAR Nextel Cup. That development is now being followed by the announcement of a new engine that will be used on the Impala SS which comes in the form of the Chevrolet RO7 engine. The engine will make its debut at the Samsung 500 which will be held at the Texas Motor Speedway.
The RO7 is based on General Motors’ small-block V8 engines. It will be replacing the Small-Block/2nd Generation engine which the team has been using since 1998. The SB2 will be replaced completely by the RO7 eventually. For now, the RO7 is expected to provide better performance for the team’s cars.
Mark Kent, the director of GM Racing, outlined their objectives in the development of the new engine and the subsequent reaction after tests conducted on the engine in this statement: ‘The GM Racing engine development team had four key objectives in mind throughout the design and development of the Chevrolet R07 engine.
Our goal was to create an engine that produces competitive power, delivers excellent reliability, enhances safety, and reduces costs for Chevrolet teams. Based on the feedback we have received from Chevy teams after extensive dynamometer and track testing, I believe we have achieved our objectives.’
The RO7 is the first engine that GM built solely for the purpose of NASCAR racing. According to Pat Suhy, the GM Racing Group Manager for the Oval Track, ‘The Chevrolet R07 is GM Racing’s first purpose-built NASCAR racing engine. NASCAR’s parameters for the new generation of engines provide a range of choices on key dimensions and design features. Our job was to make the critical decisions and carefully balance the tradeoffs that would enable the Chevrolet R07 to continue Chevy’s success in NASCAR. In the long run, the results will show whether we made the right choices.’
The major parts for the RO7 engine like the cylinder block, the cylinder head, and the intake manifold came from GM Racing. Other components supplied by GM Racing are the water pump assembly, rocker covers, and front cover. Other components like the Chevy fenders were provided by different manufacturers. Engine components are also supplied by different independent parts manufacturers.
Meanwhile, Jim Covey, the NASCAR engine development manager for GM Racing, has this to say how GM was able to create the newest engine for the Impala SS: ‘New manufacturers coming into NASCAR pushed the envelope with engines that had no links to production powerplants, while GM engines were based on the architecture of the first small-block V.
NASCAR Nextel Cup Series director John Darby addressed this issue by developing a list of parameters that define the envelope for all manufacturers, thus giving Chevrolet an opportunity to develop the R07 engine. Now with the introduction of the Chevrolet R07, Chevy teams have an optimized engine design that reflects the advances in racing technology that have been made over the last 50 years.’
Major differences between the SB2 and the RO7 include the increased cylinder bore centers in the RO7 which improves coolant flow keeping the engine at its normal operating temperature. Another improvement of the RO7 over the SB2 is the time needed to assemble the engines. The RO7′s cast camshaft tunnel, integral piston squirter galleries and overhead oil feed galleries makes it faster to assemble than its predecessor. As far as safety is concerned, the designers of the new engine moved the fuel pump which eliminates external oil and coolant lines.
Team Chevy is no doubt counting on the combination of the Impala SS and the new RO7 engine achieve more wins. According to Mark Kent: ‘The introduction of the Chevrolet R07 this weekend marks the beginning of a new era for the GM small-block V-8 engine.
The Chevrolet R07 is the heir to the winning tradition of GM production-based engines that have powered Chevy to more than 600 victories in NASCAR Cup competition. As we look to the future, we are confident that the Chevrolet R07 engine and the Impala SS race car will continue Team Chevy’s winning ways in NASCAR.’
Author: Katie Jones
Katie Jones writes for a local newspaper and her beat involves the latest updates in the automotive industry. She is also working on her book on cars during her spare time. Please visit Chevy fenders for more information.
Article Source: http://EzineArticles.com/?expert=Katie_Jones
1970 Camaro Z28 Replica Big Block 427
1970 Camaro Z28 Replica Big Block 427 4 speed, SLICK!!! for sale.
Liberty Classics 1967 Chevy Camaro V-8 Engine
Chevys most enduring engine design Collect a piece of auto history with the 1967 Chevy Camaro Small Block V-8 Engine Replica by Liberty Classics. This is a 16th scale model of Chevrolets most enduring engines. This collectible engine replica is hand assembled with impeccable attention to detail.
The Chevrolet small-block V-8 has been one of the most successful and durable engines in the history of the automobile. Since its introduction in 1955 Chevrolets more than 60 million small-block V-8 Engines have been produced to power Chevrolets passenger cars trucks and vans as well as some of the most successful circle track and drag racing cars.
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Posted on: Thursday, February 26, 2009 at 2:20 am 
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Yeah there is nothing like the sound of a big block. I’m a big 454 mark.
February 15th, 2010 at 11:33 pm