Part# CC-4133-16 : Crow Cams FORGED extra strong heavy duty valve locks to suit performance valve spring retainers will suit the 253, 308 Holden V8 engines and small block Chevy engines. Made from forged steel. 7 degree angle. Single Groove to match a single groove valve stem with a diameter of 0.343" inch. Standard Height location.

ALSO suits Ford 289, 302 and 351 Windsor Engines

They will also suit Ford Cleveland engine when aftermarket performance single grove valves are fitted. NOTE: normally the cleveland engine has a multi-grove valve stem for the valve collets

16 Pack for 8 cylinder engine. [picture is generic photo]

IMPORTANT NOTE: Please ensure you select the right components for your engine. We have structured our web site to allow you to make an informed decision on what you are buying, so we encourage you to be thorough. KustomBitz will change over components if you order the wrong ones and they are not used in anyway, however it will cost you a 35% restocking fee plus the additional cost in shipping.