Diamond Pistons Race Series Pistons 21557-RS-8

Overview

Brand:
Diamond Pistons
Manufacturer’s Part Number:
21557-RS-8
Part Type:
Pistons
Product Line:
Diamond Pistons Race Series Pistons
Summit Racing Part Number:
DPP-21557-RS-8
UPC:
686162209316
Piston Rings Included:
Yes
Bore (in.):
4.125 in.
Bore (mm):
104.775mm
Stroke:
4.000 in.
Engine Stroke Type:
Stroked
Rod Length:
6.125 in.
Piston Style:
Dish, with two valve reliefs
Piston Material:
Forged aluminum
Compression Height (in.):
1.115 in.
Piston Head Volume (cc):
-20.00cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Retainers Included:
Yes
Wrist Pin Included:
Yes
Pin Diameter (in.):
0.927 in.
Piston Ring Thickness:
1.50mm x 1.50mm x 3.00mm
File Fit:
No
Gapless:
No
Quantity:
Sold as a set of 8.
Notes:
For use on LSX race engines only.

Diamond Pistons Race Series Pistons

Diamond Pistons Race Series pistons will withstand some serious horsepower for your high performance engine. These 2618 aluminum pistons are not only significantly lighter than the factory pistons but also superior in strength. The 2618 alloy is specifically for high-horsepower, nitrous, and boosted engines making up to 2,000 hp.

Diamond Pistons Race Series pistons feature:

* 3D milling on piston crowns for “ready to install” finish
* Inside design forging with fully machined underskirts for maximum strength
* Valve pockets designed to work with most aftermarket cylinder heads
* Side gas ports for better ring seal
* Moly skirt coating for friction-loss and skirt-wear protection
* Premium H-13 wrist pins included; chamfered for round wire locks