Mid-Range Diesels: Going the Distance
While it may seem that we’re constantly asking you, the reader, to give us detailed information about your business, the truth is, details are what make this business interesting. In that respect, following the February issue of Engine Builder, a cross-section of readers were asked for their opinions on a number of topics, ranging from
Choosing A Replacement Camshaft
Unless you are doing a totally stock rebuild and reusing the original camshaft, selecting a camshaft depends on what kind of engine you are building and how that engine will be used. A stock engine for a daily driver is obviously an entirely different application than an big stroker motor for a Pro Stock racer.
AMSOIL Becomes Official Oil of CORR With Three-Year Deal
Championship Off Road Racing has named AMSOIL as the Official Oil of the series through 2010. Championship Off Road Racing (CORR) brings high action, four wheel motorsports including 2-wheel drive and 4-wheel drive trucks to the closed course off road arena. The 2008 Championship Off Road Racing’s race season includes eight events at tracks located
Valve Seat & Guide Equipment Selection
Cylinder head work is one of the mainstays of any engine building operation, and these components often require valve guide and seat work to restore them for service or to improve performance. In order for a valve to seat correctly, for efficiency and power, engine builders must replace or bring back to spec all valve
V-Twin Update: What’s Up For Harleys
Last year’s Machine Shop Market Profile revealed that about 44 percent of machine shops build motorcycle engines. Accounting for just over 3 percent of the total number of engines rebuilt, it may seem that motorcycle engines are of little interest.
Ford 5.0L/302
Ford made a limited number of the Mustang Cobras with a “super-high-output” 5.0L in ’93, ’94 and ’95. They all had a unique roller cam (p/n F3ZZ-6250-A) that can be identified by the “GT” stamped on the barrel, right behind the distributor gear. This cam was designed to work with the specific combination of heads,
Valve Seat Technology For Stock and Performance Applications
Valve seats are a critical engine component because they are the foundation of the valvetrain. The seats provide a surface for the valves to seal against when they close so there’s no loss of compression or pressure from the combustion chamber. The seats also help cool the valves by conducting heat away from valves into
New Metals-New Challenges
Cast iron is like an old familiar friend to most of our readers because it’s been around forever. Vehicle manufacturers like cast iron because it’s cheap compared to most other metals, it is strong and durable, and it can be easily cast and machined to make engine blocks, cylinder heads, crankshafts, connecting rods and other
Horsepower – Building In and Bolting On
I consider myself blessed that for the last 35 years I’ve had the opportunity to hang around with some of the nation’s best engine builders and racers, and had the rare opportunity to pick their brains about engine building tips and tricks. Most of these concepts are pretty well known in the engine building community
Timing Chains & Gears
As a rule, most pushrod engines use a timing chain to drive the camshaft, though some older four and six cylinder engines use a gear set. A short chain or gear set works well in this kind of application because the camshaft is located in the block just above the crankshaft. In overhead cam (OHC)
Drag Racing Cylinder Head Selection
Experts say that the key ingredient is high velocity matched with good flow. But the high flow numbers may blind your customers from seeing the whole picture, so it is up to you to explain. Some cylinder head experts compare flow numbers to horsepower numbers on a dyno – but guess what? They’re not all
The Shermanator 347: A 530HP Gas Stroker You Can Build
A while ago Engine Builder ran a story on the popularity and basic dos and don’ts of stroker engines ( March 2007 Engine Builder). It received such great response that we are following up with a “real world” stroker engine buildup. In this case, it is an engine combination that is so popular that it
Scratching The Niche
If you have been a reader of this magazine for any length of time, you’ll know that one thing is certain: this isn’t the same industry it was even just a few years ago. Not so long ago, a car or truck that was more than six years old would have been considered a junker,
The 2006 Machine Shop of the Year
Turning 40 used to be a bad thing… On that tragic day, the black balloons, the wacky "Over The Hill" gag gifts and the general air of sympathy that your best years had all come and gone were about the only things you could hope for. That is, if you view 40 as old. But
The Ups And Downs Of Valves
It’s always good to take a fresh look at some of the many engine components we work with. Rather than being lulled into complacency, the idea is to see what’s new, what trends are in play and to get a current reading from others on the inside. In other words, it’s good to keep it
Resurfacing Cylinder Heads & Blocks? Mistakes to Avoid
Cylinder heads and blocks may need to be resurfaced to restore flatness or to improve the surface finish, or milled to change the deck height for a variety of reasons. The deck surface on the head or block may need to be resurfaced if the surface isn’t smooth or flat. A head may need to
Honing Stones & Equipment
The finish on the cylinder walls is critical for proper piston ringlubrication and sealing. The bore geometry is also important, and mustbe round, cylindrical and straight for optimum sealing and minimumblowby. The equipment used to hone cylinders has changed in recent years as thedemand for better surface finishes, faster cycle times and lowerproduction costs have
Understanding High Performance Valvetrain Technology
Parts are getting lighter, stronger and capable of producing more horsepower than ever before. One of the driving forces behind these advances has been the proliferation of aftermarket cylinder heads that require unique valvetrain components. In addition, new computer-aided design, modeling and manufacturing techniques are making it easier and faster for valvetrain component suppliers to
Over the Peaks and Into the Valleys – Hones, Diamonds and Bores
“Your mission, should you choose to accept it, is to find the recipe for perfect bores…your instructions are to produce bores that are perfectly straight and round. This message will self-destruct after five minutes. Good luck.” Although it’s not “Mission: Impossible,” good bore geometry is critical in order to achieve proper ring sealing. Bore distortion
Aluminum Cleaning & Machining
Steel may still be the big dog when it comes to the content of the world’s motor vehicles, but aluminum usage in cars and trucks continues to increase. Fueled by the desire to save weight, time and energy, aluminum is gaining ground with manufacturers of parts and components. How does the use of aluminum in