BBC Front Main Cap Steel

The DART BBC Front Main Cap Steel (Part Number 32763020H) is a precision-engineered engine component designed for Big Block Chevy applications requiring a hone-ready front main cap. This four-bolt steel construction features a standard journal configuration and arrives ready for final machining to exact OEM specifications. Built to factory tolerances, it's the foundation piece for any serious big-block rebuild or restoration requiring OEM-spec accuracy.

The hone-ready condition means the main bore is pre-machined to within tight tolerances but requires final honing to match your specific crankshaft and bearing clearance specifications. Steel construction provides the durability and thermal stability critical for high-performance or long-duration engine operation. The four-bolt design is the industry standard for big-block Chevy platforms, offering maximum clamping force and bearing support under load. At 3.57 lbs, the cap weight is consistent with OEM specifications for proper bearing preload and engine balance.

This front main cap is essential for engine builders, restoration shops, and enthusiasts rebuilding Big Block Chevy 427, 454, 502, or 572 cu. in. engines. Whether you're assembling a street engine, marine application, or race-ready powerplant, a quality front main cap ensures proper crankshaft support and bearing longevity. The hone-ready specification allows custom machining to match your exact bearing clearances and crank specifications, making it ideal for precision builds where factory tolerances are non-negotiable.