Company: Diamond Pistons
Click on a thumbnail to see the full-size image
Affordable Billet Piston Design Allows Quick Changes
Buttons Instead of Pin Locks Let Racers Change Pistons Quickly
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.
with the removal of the secure yet unwieldy spiral locks or round wire
locks, changing buttons is a huge convenience. In addition, on pistons
where the pin bores intercept the oil control ring groove, the buttons
prevent the expander in the oil control ring from distorting around the
half moon openings in the back of the groove, a deficiency more
prevalent in power adder engines.
billet pistons, on the other hand, present virtually unlimited design
potential, allowing for last-minute changes to bore sizes, cylinder head
shapes, valve sizes, valve pocket depths, pin boss dimensions, load
paths, and so on. For teams embarking on new engine development
programs, billet pistons are often the intelligent choice. Most of the
pistons currently in use in Sprint Cup are made of billet aluminum.
cost of the billet item has always been higher than its forged
counterpart. Three years ago Diamond invested in new equipment and
tooling to accommodate the production of affordable billet pistons. They
also increased their engineering department and expanded their design
team-initiatives to further the production of the billet piston.
in a natural finish or hard anodized or with a ceramic crown coating,
or moly skirt coating, the delivery of these new inboard billet pistons
with buttons is promised in three to four weeks.
For more information, contact Diamond Pistons at (877) 552-2112 or visit www.diamondracing.net.