Diamond has announced new premium forged pistons with tool steel piston pins for turbocharged small-block Chevrolet engines. Especially suitable for drag racing applications, this new piston is produced in 2618 aluminum and is designed to fit most 23-degree cylinder heads. Accepting up to 25lb of boost the piston features a robust .260in thick crown [...]
Diamond’s new inboard billet pistons with buttons are designed for racers who regularly replace pistons in a hurry and who desire the special features of a modern inboard piston design.
For the popular 2300 Ford overhead-cam race engine, Diamond has created two new series of pistons: a low-drag two-ring design and a conventional three-ring design. Both are constructed to the specifications of Durham Racing and both are available exclusively from them. Durham Racing is headed by Johnny Durham whose engine-building shop, established in the [...]
Diamond’s new, comprehensive range of nitrous pistons comes with all the bells and whistles. Obviously, they are not designed to compete on price with entry-level conventional pistons. However, for those who need an entry-level piston today but may be considering adding nitrous or forced induction later, choosing the nitrous piston now might be the wiser [...]
DIAMOND’S TYPE 3 HARD-COAT ANODIZED PISTONS ARE CRITICAL FOR ENGINES WITH POWER ADDERS—STREET ENGINES IN PARTICULAR Imagine the surreal heat and cylinder pressure generated by a Top Fuel engine on a 1000-foot pass. Though the violence to the pistons isn’t as concentrated inside a street engine with a power adder, it is constant and [...]
ENGINE BUILDERS REJOICE! DIAMOND PISTON’S NEW COMBUSTION CHAMBER MOLD KIT—if you alter the combustion chamber, altering the piston dome to suit is simple CUSTOM CHAMBER MODELING KIT Diamond’s modeling kit provides all materials needed to make your own custom chamber model. This allows Diamond to design and make custom-dome pistons to precisely fit [...]
Diamond Pistons has launched a new series of high-domed, high compression pistons for Ford Windsor 5.0 and 351 engines equipped with Trick Flow Twisted Wedge cylinder heads. Developed for weekend warriors and budget bracket racers with either naturally aspirated oe nitrous engines, the new slugs are supplied with 4130 wrist pins and spiral locks, or [...]
CARBURETOR/FUEL PLUMBING Our big-gulp carb is Holley’s Ultra Dominator (P/N 0-80673), an 1,150 cfm race carb that features billet metering blocks, three-circuit metering, mechanical secondaries and oversized sight windows for easy float adjustment. Recommended fuel pressure is 5-7.5 psi. The anodized billet metering blocks feature changeable idle feed restrictors for easier tuning of the idle [...]
Custom pistons are available in any configuration, but knowing what’s needed to order them requires careful measurement and sound decisions. Once the data sheet is accurately completed, your order begins to forge blank slugs. Initial machining begins with pin bore placement. Here the rod small end passage is machined, based on your reported small end [...]
MAKE A MOLD Simone also told me that Diamond Racing now offers a very cool epoxy chamber mold kit that can absolutely save the day in terms of what your application demands. The kit (an A-B pair of epoxy cans, a mixing stick, nitrile gloves and a spark plug hole plug) it sells for a [...]
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