400 Head Gasket WITH STEAM HOLES

The 400 Head Gasket with Steam Holes is a precision-engineered sealing component designed for small-block engines requiring reliable combustion chamber and coolant passage isolation. Built by FEL-PRO, a trusted name in OEM-quality gasket manufacturing, this head gasket serves as the critical barrier between your cylinder head and engine block. Whether you're rebuilding a classic 400 cubic-inch engine, restoring a performance vehicle, or replacing a failed gasket on an existing engine, this component is essential for restoring compression integrity and preventing costly coolant leaks into the combustion chamber.

The steam holes integrated into this gasket design allow controlled coolant circulation from the block to the head, preventing hot spots and maintaining optimal engine operating temperature during extended use or high-load conditions. FEL-PRO's multi-layer steel construction with facing materials ensures a consistent, durable seal under compression cycling and thermal stress—critical for engines subject to performance driving, towing, or sustained RPM operation. The gasket's engineered thickness and precise bore sizing guarantee proper clamp load distribution across the head surface, minimizing the risk of blow-through or gasket failure that can compromise engine reliability.

This head gasket is ideal for mechanics and enthusiasts rebuilding 400-cubic-inch small-block engines, including Chevrolet 400 applications and compatible platforms requiring this exact bore and steam-hole configuration. Proper installation requires a clean, flat machined surface on both the block and head deck, correct head bolt torque sequencing, and verification of gasket orientation. Always pair this gasket with fresh head bolts and apply manufacturer-recommended torque specifications for optimal clamping force and seal longevity. OEM-equivalent quality makes this the preferred choice for restoration work where durability and leak-free operation are non-negotiable.