A fastener such as a Nut and bolt, Or washer has a series of spikes or teeth on a bearing surface which is engageable with a workpiece. The spikes or teeth can grip the workpiece to lock the fastener against relative rotation with respect to the workpiece.
When putting a larger camshaft into an LS engine with an active fuel management system, sometimes the aftermarket and factory parts don’t always work well together. Al talks about putting an aftermarket camshaft into an LS engine and selecting the right VVT Delete or DOD Delete kit to make everything work together properly.
DOD Delete Kit: https://www.summitracing.com/redirect?banner=SocialYT4612
VVT Delete Kit: https://www.summitracing.com/redirect?banner=SocialYT4613