Mr. Gasket Sure-Lock Rocker Arm Nuts - For Aluminum Rocker Arms - Fits SB Chevy 283-400 , Pontiac V-8 , Ford 289/302/351 (Except 351C) - Gold Tone Finished Nuts Have 3/8" Stud and .540" Shank O.D. Mobile Electronics Parts & Accessories It is designed for applications

It is designed for applications that only have room for a stock oil pan

Mod Bandit Helmet Replacement Shield - Clear

or wherever an NPT fitting is needed

7 in x 10 in Base

found on mid-size GM Metric frames

Mr. Gasket Sure-Lock Rocker Arm Nuts - For Aluminum Rocker Arms - Fits SB Chevy 283-400 , Pontiac V-8 , Ford 289/302/351 (Except 351C) - Gold Tone Finished Nuts Have 3/8" Stud and .540" Shank O.D. Mobile Electronics Parts & Accessories It is designed for applicationsDesigned to keep the rocker arms positively locked for precise and critical valvetrain adjustments. Manufactured from quality grade steel, then heat treated for extra strength and plated with a durable finish. Kits include 16 rocker arm nuts with socket head set screws and one hex key wrench. Fits Chevrolet 283 400 SB, Pontiac V8 & Ford 289 302 351 (ex 351C). Gold tone finish. Vehicle Applications: 1971 1971 Mercury Monterey 1961 1974 Chevrolet K10