Engine
There are many reasons why the icon cars have achieved the lofty status they now enjoy, but one of the more obvious reasons is the simple fact that they were finished. Their existence and subsequent high-level exposure have inspired many a young lad to undertake similar projects, and for every famous car built in the early years, probably two others were started in an attempt to either copy or outdo it, but they never saw the light of day.
With the advent of the old-time roadster popularity rearing its head again, and with the ever-increasing price of gasoline, we suspect that you will be seeing more and more of these little engines in creatively altered hot rods. We know of a few being done right now, and we will be bringing those to you just as soon as they hit the road. But in the meantime, here’s a piece that took a lot of time to assemble and research, so we thought that those of you looking for alternative powerplants would enjoy this neat solution for the right, light car.
If you attend car events in California, such as NHRA’s California Hot Rod Reunion in Bakersfield, the West Coast Kustoms show in Paso Robles or the L.A. Roadster Show in Pomona, you will notice that rat rods are a growing segment of the hot rod hobby. Years ago, when they started becoming a common sight at many of the shows, the mechanical aspects of most of the cars were scary at best. You could see cars with no springs, some without floorboards, and many constructed with less-than-desirable stick welding. It is this type of construction that created the name “rat rod.” Fortunately, over the past few years there has been an attempt to upgrade the construction of rat rods, even though the enthusiasts want to use as many original parts as possible.
When it comes to performance, the devil really is in the details. Ever wonder why one engine makes more power than another, when both are seemingly identical? The answer to this very common performance question lies in the attention to detail. Basic performance elements such as engine tuning, spark timing curves, and, yes, even oil selection all come into play when you attempt to extract the maximum amount of power from your existing combination.
Time and time again, our advice to those interested in learning about stout-running engines is that it’s the total combination that makes it all happen—considering, of course, that components are prepped, cleaned and assembled as if in a “clean room.”
We first wrote about this 565-cubic-inch Dart “Big M” engine, equipped with Dart Big Chief II Pro Stock-type aluminum heads, back in our October ’04 issue. The engine builder was Quarter Mile Performance in Chatsworth, California, and at the time, we called it “possibly the world’s most powerful four-barrel big-block.” It produced 1037 horsepower at 7200 rpm and 806 lb-ft of torque at 5500 rpm–plenty stout by anyone’s standards.
The small-block Chevy has enjoyed a long, happy life. Sure, the current LS1/LS6 version is quite far removed from the original, but thousands upon thousands of little mouse motors continue to provide the sole means of motivation to everything from stationary irrigation pumps to Le Mans-winning C5R Corvettes. Naturally, this list also includes all manner of boulevard bruisers, street stompers and resto rockets. Heck, we’ve even seen little Chevys under the hood of “Brand X” machinery. The continued popularity of the small-block Chevy is not surprising. Take a look at the combination of power potential and parts availability and multiply that by the cost quotient, and you have the makings of a real success story. Add to this equation the millions of project motors just sitting around junkyards throughout the world, and it is easy to see why enthusiasts continue to embrace the mighty mouse motor as the performance powerplant of choice.