Block Chevy Cylinder

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Block Chevy Cylinder
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The task of restoring the  Austin Healey sports car is not a job but more of a labor of love. These wonderful little 2 seater sports cars were only made for 20 years and the newest is now 40 years old.

The whole reason they came into existence was because the British auto manufacturers lost their way on what would be popular and desired by the general public. When the manager of the newly merged Austin Motor Company, Leonard Lord, saw what Donald Healey had done with the parts he made from British Motor Company, he knew he found the magic formula. This was the very first Healey 100 that rolled into the London auto show in 1952.

For this reason, the 20 year business contract between the Austin Motor Company and the Donald Healey Motor Company was formed to produce a car with the brand name Austin Healey.

The first line would be from the original one that was presented at the auto show, the Austin Healey 100. This car was named 100 because it would go 100 mph. These would be built from 1953 until 1959. They would be powered by the same engine that was in the Austin A40 in the first two models. This was a 4 cylinder that had a displacement of 2660 cc.

Because this engine was used in more than just one car, finding the block for your restoration project is easier than just looking for one type of car. The only difference was in the transmission that was used between the two. While the Austin Healey 100 could go 100 mph, the A40 could only obtain 77mph. This was all due to the gears that were used in the tranny. The second and third gears were overdrives which help to propel this car to this high rate of speed.

The first series was the BN1 model. When the BN2 model was introduced in 1955, a 4 speed manual transmission was used with the top two gears still being overdrives. Another distinction between the two models was that the BN2 had larger front wheel arches and a different rear axle.

When restoring a BN2 car, remember you can have two-tone paint. This was the first time this was offered in the Austin Healey. The colors used were White/Black, Reno Red/Black, Healey Blue/White, Black/Reno Red, and Florida Green/White. For the single tone bodies, the colors were Reno Red, Spruce Green, Healey Blue, Florida Green, Old English White, Primrose Yellow, Black, and nearly 50 cars were painted with Gunmetal Grey.

There were also two special cars painted for the 1955 London auto show. One was White over Red and the second was Black over Pink.

In 1956, the BN4 was introduced that had the larger 6 cylinder engine and was designated 100-six. This version also introduced a hood scope on the bonnet and the windshield became stationary from this point on.

The engine that was used was from the Austin Westminster model which was a BMC C-series that put out 102 bhp. This was increased to 117 bhp in 1957.

This production run lasted until 1959, when it was ended. The total number of Austin Healey 100's that were produced was 29,070. If your Austin Healey restoration project is of a 100 model, then you will have one of the oldest Austin Healeys that was made, and the first in this historic line of cars to enjoy when it is completed.

If you have problems finding rare parts or a scarce Austin Healey project car you will want to check out Austin Healey Restoration. Here we have articles about restoration projects and photos of the Big Healey Cars and parts sources. Have fun! Visit our website at: http://AustinHealeyRestoration.org/.

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.”

About the Author

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.

setting timing on chevy small block?

I understand that I am missing the step of lining up the notch on the camshaft, can anybody help?
I brought the #1 piston to TDC on a compression stroke and lined the notch on the harmonic balancer to 0 on the tab at the bottom of the timing cover. And at this point I understand I need to line up a notch on the camshaft before I put the distributor in with the point facing the #1 cylinder on the cap. Any help would be great
where can I find this BOOK
well I got the reapir manual and this step is not in there.

Did you buy the book to find out how to do it yet?
After you bring the #1 piston to TDC, you are NOT suppose to move it to line up with harmonic balancer notch. You are supposed to leave it at TDC.
Then you line up the cam pulley and put the belt on. That puts the crank and cam in sync.
Once you do this, then you move the harmonic balancer to the notch and put in your distributor and make sure it points to #1.
The purpose is to line up crank, cam and distributor to the same place so it is ALL in sync.

The origin of the Chevrolet Camaro
The 2011 Camaro (all photos ©GM Corp.) The common conception is that Ford introduced the Mustang in 1964 to incredible success, and the folks at arch-rival Chevrolet simply copied the concept to unveil the Camaro in 1966 for the 1967 model year.

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