On The Dyno
|w/650 Demon||w/850 Demon||Difference
From a business that literally began in a two-car garage, Dart Machinery has come a long, long way in thirty years, yet has remained loyal to its Detroit-area roots. Like many in the automotive aftermarket, Dart founder Richard Maskin is a racer and mechanical wizard who began engineering and building hardware for his own drag race programs.
Other racers soon took notice of his on-track success, the orders started piling in, and Dart Machinery evolved into a Motor City success story that now spans two huge facilities encompassing the company’s R&D, administrative, warehousing, and ultra-modern machining operations. For the enthusiast, engine blocks and cylinder heads—and now assembled short-blocks—are the primary focus, but we wouldn’t be surprised to see Dart branching out into other components and products as time goes by.
Speaking of cranks, the stroke is 3.400 inches (same as a typical 347’s), and Dart offers
Likewise, you can choose between H-beam or I-beam (Eagle 5.400-inch) steel rods when order
Desired compression will dictate your choice of flat-top or (16cc) dished pistons. Both ar
After a couple pulls, Jeff Lake verified that lash was adjusted within the cam manufacture
As with our earlier 427 project, we’re topping this 363 short-block testbed engine with Da
The heart-shaped chambers are normally whittled out to 62 cc, but since Dart does all mach
Soon the build got underway using Dart’s newly introduced high-performance assembly lube.
With high rpm on the horizon, Comp Cams (www.compcams.com) Ultra Pro Magnum roller rockers
Which brings us to the all-important choice of bumpsticks. With the idea being to get a bi
Ever seen a CNC-automated vertical line-honing mill before? Neither had we until we encoun
Flow benches are of course essential in researching, developing, and verifying cylinder he
Dart doesn’t cast its blocks or heads—these are poured to the company’s specs by a special
Tony also used Dart’s two-piece, adjustable pushrod guideplates that fit together like puz
As with the Dart 427 build, an affordable Professional Products Hurricane single-plane man
Also shared with the previous Dart 427 project are the Kooks headers with their generous p