CP Pistons Bullet Race Series pistons are forged from premium 2618 aluminum alloy, giving high-horsepower and forced-induction big block Chevy builds the strength to survive serious cylinder pressure. This open-chamber set uses a flat-top design with a 3.4cc valve pocket volume, a 1.245 in. compression height, and a 9.7:1 compression ratio with 118cc heads. Each set ships complete with a 1/16 in., 1/16 in., 3/16 in. ductile moly ring pack and wrist pins, and is proudly made in the USA.
Specifications
| Type | Forged Piston Set |
| Material | 2618 Forged Aluminum |
| Application | Big Block Chevy, Open Chamber |
| Bore | 4.500 in. |
| Stroke | 4.500 in. |
| Rod Length | 6.700 in. |
| Compression Height | 1.245 in. |
| Compression Ratio | 9.7:1 (with 118cc heads) |
| Dome | Flat Top, -3.4cc |
| Ring Pack | 1/16 in., 1/16 in., 3/16 in. |
| Quantity | Set of 8 |
| Part Number | BBC5205-STD |
| Origin | Made in the USA |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
