- APBA® Approved.
- Forged from Premium 2618 aluminum alloy
- CNC machined domes with radiused valve reliefs provide optimum flame travel
- Forced Pin Oiler for increased wrist pin lubrication
- Pin fitting and double spiro locks included
- 990-2930-150 wall wrist pin (150 grams) included
- CNC Machined ring grooves accept 1/16, 1/16, 3/16 rings (Rings Sold Seperately)