Choosing Valvetrain Components: Lifters, Pushrods, Springs & Rockers
The type of parts you ultimately choose will depend on the application (street performance, circle track, drag, marine, etc.) and any rules that restrict the type of camshaft, lifters or other valvetrain components that are allowed. But don’t overlook your customer’s budget. Affordability often limits your choices if a customer just doesn’t have the bucks
Cleaning Engine Parts: Can You? Should You?
Here’s the kicker – those shops who feel that proper cleaning is too difficult, too time consuming or too expensive are actually leaving money on table when it comes to their engine parts. “At one point in my career, cleaning seemed like it was really difficult,” says Dave Arce of Arce Enterprises, El Cajon, CA.
Stock Car Engines and Sanctioning Bodies: Different Groups, Different Rules
But for engine builders, keeping up with these groups, and the many sets of rules, can be quite a task. How do you stay on top of what’s legal AND competitive? We will take a closer look at a number of groups that are off NASCAR’s beaten path and see what they have for rules.
The Nitty Gritty of Abrasive Safety
Conventional abrasives have kind of taken a back seat to PCD and CBN cutters in the automotive world in the last few years. Since most engines being rebuilt these days are made from multi-alloy components they are more easily machined with PCD or CBN. But PCD and CBN can’t do everything, so abrasives are still
Smoothing Out The Stress
We’ve all heard (and probably used) the term “harmonic balancer.” I always get a chuckle when I hear this term used so freely by educated gear heads. Because you see, there really is no such animal as a harmonic balancer on the internal combustion engine. The correct term is “harmonic damper.” The damper is often
Rebuilding GM’s 4.8, 5.3 and 6.0L Gen IV Engine
Shortly after GM introduced the LS1 in the ’97 Corvette, they created a whole new family of small block truck engines based on the LS1, including the 4.8L, 5.3L, 6.0L and the 6.2L that each came with a number of variations over the years. GM built nearly 30 different versions of these truck engines during
Today’s Performance Connecting Rods
The crank and rods handle all the stresses of converting up and down motion to reciprocal motion. And when you are building a performance engine, those stresses are much higher and consequences of a failure are much greater. Therefore, selecting the right parts for your build is critical to the success of your engine and
Building Ford Strokers Engines: Make Most of a Windsor Block
Nijssen, the Apple Valley, CA-based engine builder, operates strokerengine.com and builds domestic V8 engines for the U.S. and international (primarily Australian) enthusiast markets. He says he doesn’t try to push his desire onto the customer. “I don’t sell you what I like, but rather you and I figure out what you really need for power
Late Model Performance Cylinder Heads
As the economy continues to come out of its slump, cylinder head manufacturers are seeing a growing demand for new cylinder heads that can deliver race-winning performance. Whether the heads are upgraded aftermarket heads for traditional small block/big block Chevy and Ford applications, or hot heads for the latest generation of Chevy LS and
ZDDP: When, Where, What, Why, How?
Government regulations and demands for lower emissions levels become more important than power and performance. Proven components are no longer acceptable and the inevitable changes occur – not always for the best. Things seemed to be much simpler in the 1930s. Engine bearings were made from a soft tin/copper/antimony alloy, commonly referred to as babbit.
Recent Advancements in Racing Oils
The racing oil community has been very busy this past year. This is much more satisfying to an old “oilhead” who has seen years where there were no new racing oil developments. Racers and engine builders traditionally focus more on improvements in hard parts, because that’s what they understand best. However, recent successes in racing
Cummins Injector Leak Diagnosis Can Be Tricky
Certainly, there’s some common repairs needed on specific engines that are easy to do but doesn’t mean that it makes everything else easy to diagnose. Owners often think that because diesel engines are now electronic the technician should be able to hook up a scan tool and immediately see what is going on. The good