Vehicle Fitment
- Fits Following Engines: 427 CID GM (LS) Small Block Generation IV.
Main Cap Short Stud (549301-1) by RHS®. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance and reliability. Designed to provide a perfect fit for a hassle free installation, this reliable product can help you get you vehicle back on the road faster and easier.
Racing Head Service™ the legendary innovator of airflow technology offers the ultimate in cylinder head, engine block and intake manifold performance. Utilizing the resources of the industry leading COMP Performance Group™ engineering and development team and the most sophisticated engine technology in the performance aftermarket, RHS® has re-established itself as a leader in airflow design.