The Fel-Pro 1133 SD-4 Severe Duty Engine Cylinder Head Gasket is engineered for demanding repair environments, providing a reliable seal on even the most challenging applications. Designed specifically for Ford V8 Small Block engines including 260, 289, 302 (excluding Boss), and 351W models, this gasket is built to withstand the rigors of high-performance and long-term use. Crafted from proprietary materials, it is capable of accommodating imperfect sealing surfaces and engine movement caused by dissimilar materials like aluminum heads on cast iron blocks. This ensures consistent sealing integrity under significant engine stresses, reducing the likelihood of leaks and improving overall engine reliability. The gasket features strategically located sealing beads that surround critical areas such as the combustion chamber and coolant passages, which help concentrate clamp load and prevent leakage during high-pressure operation. The latest innovation incorporated into this gasket is the PermaTorqueMLS (multi-layer steel) series, offering enhanced durability and sealing performance. The design also aims to simplify installation, saving time and reducing the complexity of engine repairs, while addressing original equipment design issues and customer complaints. Note that this gasket is not intended for use in emission-controlled vehicles. Whether you're performing a rebuild or addressing persistent sealing issues, the Fel-Pro 1133 SD-4 gasket provides a proven solution for maintaining engine integrity and performance over the long haul.
Features:
- Designed for Ford V8 Small Block engines including 260, 289, 302 (excluding Boss), and 351W models
- Engineered with proprietary materials for reliable sealing on imperfect surfaces
- s strategically placed sealing beads around combustion chambers and coolant passages
- Incorporates the advanced PermaTorqueMLS (multi-layer steel) technology for durability
- Optimized for high cylinder pressures and significant engine movement
- Simplifies installation, reduces repair time, and enhances engine longevity
- Not suitable for use in emission-controlled vehicles
