Carrillo BCRE1221-005 Bullet Race Elite Chevy 402ci ASCS Forged Piston Set 4.130 Bore 8cc Dome

The CP-Carrillo BCRE1221-005 is a Bullet Race Elite Series forged piston set engineered specifically for the ASCS (American Sprint Car Series) Sprint Car series.

Manufactured at CP-Carrillo's Irvine, California facility, these pistons are made in the USA from 2618 hollow dome aluminum forgings — the preferred alloy for high-output, high-RPM racing engines due to its superior strength and thermal tolerance. The 8cc dome design and 1.125" compression height are optimized for the specific combustion chamber geometry of ASCS-spec sprint car cylinder heads.

Key Specifications:

• Engine Application: Small Block Chevy 402ci
• Bore: 4.130" (+0.005" oversize)
• Stroke: 3.750"
• Rod Length: 6.000"
• Compression Height: 1.125"
• Dome Volume: 8cc dome
• Pin Diameter: .927" x 2.250"
• Ring Package: 1.0mm steel top ring, 1.0mm Napier second ring, 2.0mm oil ring
• Application: Normally Aspirated, ASCS Sprint Car Series

Key Features:

• Made in the USA from 2618 hollow dome forgings
• Vertical gas ports for improved ring seal
• .335" deep intake pockets
• Pistons balanced to ±1 gram for precision rotating assembly balance
• Dual forced pin oilers
• Contact reduction grooves and accumulator groove
• FEA-designed forging with tight tolerances
• Chromoly wrist pins with wire locks included
• ISO 9000 certified manufacturing process

The BCRE1221-005 is a made-to-order, non-cancelable item. Not CARB legal — not for sale or use in California. Designed for normally aspirated sprint car competition, this set delivers the same manufacturing standards as CP's custom billet pistons at an accessible price point for serious racers.