The CP-Carrillo Bullet Series is a forged 2618 aluminum piston set built for high output Chevy LS3 engine builds running naturally aspirated, nitrous, supercharged, or turbocharged power. Each flat-top piston has a 4.065 inch standard bore, a 1.110 inch compression height, and works with a 4.000 inch stroke and 6.125 inch rod for roughly 11.5:1 compression on 66cc 15 degree LS heads. The set includes 1.5mm gas-nitride steel top rings, 1.5mm Napier second rings, 3.0mm oil rings, and 0.927 inch wrist pins. A special skirt design reduces piston noise, and every piston is machined in the USA.
Specifications
| Type | Bullet Series Forged Piston Set |
| Application | Chevy LS3 (15 degree / L92 heads) |
| Bore | 4.065 in (Standard) |
| Stroke | 4.000 in |
| Rod Length | 6.125 in |
| Compression Height | 1.110 in |
| Compression Ratio | 11.5:1 (66cc head) |
| Dome / Dish | -2.7cc flat top |
| Ring Pack | 1.5mm gas-nitride steel top, 1.5mm Napier second, 3.0mm oil |
| Wrist Pin | 0.927 in |
| Material | 2618 forged aluminum |
| Quantity | Set of 8 pistons |
| Part Number | BLS1123-STD |
Shipping: In-stock orders placed before 4 PM EST ship the same day, with standard, expedited, and overnight options available at checkout. Backordered items ship as soon as our distributor restocks — 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.
