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.
| 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, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
