CP Pistons Bullet Race Series Forged Pistons - Chevy LS7 4.130 Bore (+0.005 in)

Bullet Race Series is CP-Carrillo's 2618 forged aluminum piston for LS builds that see boost or nitrous, and this set is machined to a 4.130 in bore, 0.005 in over the LS7's standard 4.125, for a 4.000 in stroke on a 6.125 in rod. The crowns are 4.6cc flat tops at 1.120 in compression height, which works out near 11.2:1 against 70cc chambers, and they run a 0.927 in pin with a 1.2mm, 1.2mm and 3.0mm ring pack. Wrist pins and rings are included. These are cut for 12 degree and 13 degree cylinder heads rather than stock LS7 castings, and they are sold as a set of eight.

Specifications

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