Made entirely from steel for unmatched durability, Comes complete with studs, washers, and stainless acorn nuts, Has a 7/16-14 thread pitch on one end and a 7/16-20 thread pitch on the other, This head stud kit is specially designed for the 1949-53 Flathead Ford with Offenhauser Heads. These ARP head stud kits are designed specially for 1949-53 Flathead Ford engines with Offenhauser cylinder heads. Trust the strength and quality of ARP studs for your Flathead engine. Complete with studs, washers, and stainless acorn nuts. For use with Offenhauser cylinder heads. 48 stainless acorn nuts. 48 stainless flat washers. Includes (48) washers and acorn nuts, (28) 3.35″ studs (8) 2.60″ studs, and (12) 2.62 studs. Worked perfectly with Navarro Heads. By BlownFlathead on May 20, 2014. This should be included in the Description. We ordered them hoping they would work with these heads. Stud Lengths would also be helpful in selection. Worked with navarro heads. Yes, I recommend this product. Related Items / Suggested Parts. Offenhauser 1069-400 1949-53 Ford Flathead Finned Aluminum Heads. Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 71 years.