Diamond R-Series Pistons
Thread Starter
Joined: Aug 2004
Posts: 11,258
Likes: 146
From: Pace, FL
Diamond R-Series Pistons I saw these from a few places pop up over the last couple of months, but of course, Diamond's webpage has squat on them. But their Facebook page provided a link to the 2017 Catalog a few weeks back and now the R-Series appears there.
Apparently, they include the piston rings now (1.2/1.5/3mm or 1.2/1.2/3mm rings that are Total Seal AP Stainless Top Rings in some applications), moly coated side skirts, .250" ringland depth, and decent .185" wrist pins. Also, have the option of going to H13 Tool Steel Wrist Pins as an upgrade.
The pricing is also very good on these.
I'm now looking at the 11503-R1 for my build and the pricing is under $900 for the set with the H13 wrist pins.
Just thought I'd share for anyone looking for another piston option.
From Diamond:
3D milling on piston crowns for ready to install finish
Valve pockets designed to work with most aftermarket cylinder heads
Offset pins for quiet operation
Moly skirt coating for friction loss and skirt wear protection
Top ring down dimension: .250"
Premium 1.2mm x 1.2mm x 3.0mm ring package included
Premium 1.2mm x 1.5mm x 3.0mm ring package on all 3.905 bore piston sets included
Premium 8620 .185W wrist pins included
Valve pocket depth: 0.176" intake and .105" exhaust
2618 material for High HP-NOS-Boost applications
Apparently, they include the piston rings now (1.2/1.5/3mm or 1.2/1.2/3mm rings that are Total Seal AP Stainless Top Rings in some applications), moly coated side skirts, .250" ringland depth, and decent .185" wrist pins. Also, have the option of going to H13 Tool Steel Wrist Pins as an upgrade.
The pricing is also very good on these.
I'm now looking at the 11503-R1 for my build and the pricing is under $900 for the set with the H13 wrist pins.
Just thought I'd share for anyone looking for another piston option.
From Diamond:
3D milling on piston crowns for ready to install finish
Valve pockets designed to work with most aftermarket cylinder heads
Offset pins for quiet operation
Moly skirt coating for friction loss and skirt wear protection
Top ring down dimension: .250"
Premium 1.2mm x 1.2mm x 3.0mm ring package included
Premium 1.2mm x 1.5mm x 3.0mm ring package on all 3.905 bore piston sets included
Premium 8620 .185W wrist pins included
Valve pocket depth: 0.176" intake and .105" exhaust
2618 material for High HP-NOS-Boost applications
Bumping this back up because this is the piston I just decided to go with in my dart 388 build. Surprised I don’t see more people using them. They’re a very nice piston for a great price. They’re basically the same price as other standard forged pistons after you add the price of an upgraded pin to them.
my builder told me they come standard with the coating and .250 wall H13 pin.
These are are also known as the LS2K pistons because diamond rates then to 2,000 hp.
my builder told me they come standard with the coating and .250 wall H13 pin.
These are are also known as the LS2K pistons because diamond rates then to 2,000 hp.
