Hi-Perf 8740 (2-pc) Rod Bolt Kit for Ford 239-256-272-292 Y block (rod marked ECZ)

Hi-Perf 8740 (2-pc) Rod Bolt Kit for Ford 239-256-272-292 Y block (rod marked ECZ)Because factory connecting rods (or aftermarket versions of OEM rods) are used in a variety of applications from rebuilt stock motors to modified powerplants used in circle track, marine and drag racing engines including those with superchargers and or nitrous oxide injection systems ARP offers replacement rod bolts in three different models. All of them are substantially better than the stock OEM and most aftermarket bolts. For the most severe

The studs are sold in 4 or 5 packs and are cadmium plated for extra durability

and copy down the length of the fastener prior to and after installation

each stud is centerless ground to makeit as close to perfectly concentric as possible

What’s more

They are both forged from aerospace alloy and heat-treated prior to thread rollingand machining

ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12-point nuts

ARP rocker studs are concentric within

000 psi bolts that let you exert maximum clamping force

000 psi range

Those first moments an engine runs prior to building oil pressure are when damage can easily occur

Finish 2: Polished

increments