Isky Cams Super 7 Valve Locks - For 11/32" Diameter Valve Stems DK18337411SFI Dirt Defender Mud Covers are

Dirt Defender Mud Covers are made in the USA of a high quailty plastic and fit a most 15" wheels on the market including Aero

Single pattern/overlap reduced for restricted intake classes (Late model stock) 3/8 mile track/long rod applications

This installation takes approximately 20 minutes and comes complete will all necessary hardware

As the pictures show

Isky Cams Super 7 Valve Locks - For 11/32" Diameter Valve Stems DK18337411SFI Dirt Defender Mud Covers areThe Isky Super 7 Retainer and Lock system offers a more precise fit than Isky's standard Jumbo 7 degree Lock Retainer Combo. The Super 7 degree lock is actually closer to an 8 degree taper angle and incorporates a ground finish on the O. D. to exert a greater locking force in the retainer. Valve spring heights are more consistent as a result. As the world's largest racing, performance, and economy cam manufacturer, Isky maintains a dynamometer testing