Carrillo BBCRE5321-105 Bullet Race Series Big Block Chevy 533ci Forged Piston Set

The CP-Carrillo BBCRE5321-105 is a Bullet Race Series (BRS) forged piston set engineered for high-displacement, high-compression Big Block Chevy applications. Designed for 533ci BBC builds running the popular Brodix BB3 Xtra and Head Hunter 24° cylinder heads, these pistons are built to handle aggressive nitrous and power adder combinations.

Key Specifications:

• Engine: Big Block Chevrolet (BBC) 533ci
• Bore: 4.605 in.
• Stroke: 4.000 in.
• Rod Length: 6.535 in.
• Compression Height (CH): 1.245 in.
• Compression Ratio: 13.7:1
• Dome Volume: 46.9cc
• Cylinder Count: 8 (complete set)
• Power Adder: Yes — designed for nitrous oxide applications
• Ring Package: .043 steel top ring, .043 Napier second ring, 3mm oil ring
• Wrist Pins: .990 x 2.930 in. with .200 wall (standard)

Key Features:

• Forged from 2618 aluminum for superior strength and thermal fatigue resistance
• Designed for Brodix BB3 Xtra and Head Hunter 24° cylinder heads
• .310 deep intake pockets and +.100 exhaust pockets for valve clearance
• Vertical gas ports to reduce ring flutter and improve ring seal under high-load conditions
• Accumulator groove to collect combustion gases past the top ring, improving ring seal and maximizing downward force
• Dual pin oilers deliver increased lubrication to the wrist pin bore
• Radiused valve reliefs and pin-fitting final hone on wrist pin bore
• Manufactured in the USA at CP-Carrillo's Irvine, California facility
• Each kit includes a piston spec sheet with piston-to-wall clearance recommendations

The CP-Carrillo Bullet Race Series delivers proven forged piston performance for serious BBC engine builds. Whether the application calls for nitrous-assisted street use or dedicated drag racing duty, the BBCRE5321-105 provides the strength, precision, and power-adder capability that demanding builders require. Note: These pistons are made to order (MTO) — please allow additional lead time for production and delivery.