Advantages of cost and packaging
Single camshaft overhead-valve (OHV) engine limited to dual equal phasing only

Gen 5 LT1

Dual phasers are available for concentric camshafts (Photo: Mechadyne International)
Advantages of cost and packaging
Single camshaft overhead-valve (OHV) engine limited to dual equal phasing only
Gen 5 LT1
Dual phasers are available for concentric camshafts (Photo: Mechadyne International)