11/32 Intake Valve - BBC 2.300

The DART 11/32 Intake Valve for BBC 2.300 (part number 21342300) is a precision-engineered stainless steel intake valve designed for big-block Chevy engine builds. With a 2.300-inch head diameter and 11/32-inch valve stem, this component delivers the dimensional consistency required for high-performance engine assembly, race applications, and serious machine work. The 0.250-inch oversize length accommodates specific valve guide specifications and port geometry found in performance BBC cylinder heads.

Manufactured from stainless steel, this valve resists corrosion and thermal degradation under sustained high RPM operation and elevated cylinder temperatures. The 11/32-inch stem diameter is a critical dimension for proper valve guide fit and oil control; improper stem sizing leads to binding, leakage, or catastrophic guide wear. The 2.300-inch head provides the sealing surface area calibrated for the port dimensions of modern and classic BBC cylinder head designs. Each unit ships individually, allowing builders to source exact quantities for complete engine assembly or staged rebuild work.

This valve is intended for engine builders, machine shops, performance enthusiasts, and restoration specialists working with big-block Chevy platforms. Whether rebuilding a 427, 454, or other BBC displacement, matching OEM or upgrade cylinder head specs demands exact valve geometry. The stainless construction and precision tolerances support both stock restoration and modified engine builds targeting increased displacement, ported heads, or aggressive valve timing. Verify your specific head requirements and port diameter before ordering to ensure compatibility with your cylinder head casting and valve guide bore.