Comp Cams Pro Magnum Hydraulic Lifters, Ford V8 Aluminum Our core size is 21

Our core size is 21

but gaskets and bolts aren't confirmed in the assembly

12v/21w reverse light bulbs are included

Do these use the factory fog light holes

Standard automotive primer and paint will adhere — sand lightly before applying primer

Comp Cams Pro Magnum Hydraulic Lifters, Ford V8 Aluminum Our core size is 21Pro Magnum Hydraulic Lifters, Ford V8 PRO MAGNUMT? Hydraulic Flat Tappet Lifters Specifically designed to perform at higher engine speeds Proper position of internal piston at higher RPM prevents lifters from harmful "pumping up" Unique design yields significant power increase over standard hydraulic lifters Adjustable valve train required Pre load . 002" . 004" w engine warm APPLICATIONS (Ford) Small Block V8 289 302 351W Small Block V8 351C 351M