ROSS RACING PISTONS-NEW

Brand:
Ross Pistons
Manufacturer’s Part Number:
99625
Part Type:
Pistons
Product Line:
Ross Racing Forged Pistons
Summit Racing Part Number:
ROS-99625

Bore (in):
4.070 in.
Bore (mm):
103.378mm
Piston Style:
Flat top, with two valve reliefs
Piston Material:
Forged aluminum
Compression Distance (in):
1.804 in.
Piston Head Volume (cc):
+5.50cc
Wrist Pin Style:
Press-fit or floating
Wrist Pin Included:
Yes
Pin Diameter (in):
0.984 in.
Piston Ring Thickness:
1/16 in. x 1/16 in. x 3/16 in.

Tool
Stroker Combinations
Ross Racing pistons are forged from 2618-T61 aluminum alloy and come standard with a ton of great features, including:

* Forced piston-pin oilers
* Double Spirolox pin retainers
* Valve pockets engineered for oversized valves and modern high-lift cams
* Fully CNC-machined skirts to deal with high heat and side loadings
* Radiused domes (on most applications)
* Balanced to +/- 2.5 grams
* Aircraft-quality pins