Hi-Perf 8740 Complete Rod Bolt Kit for Toyota 1.6L (4AGE) DOHC & 1.6L (4ALC) SOHC M9

Hi-Perf 8740 Complete Rod Bolt Kit for Toyota 1.6L (4AGE) DOHC & 1.6L (4ALC) SOHC M9Because 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. A premium grade 8740 alloy

As the crankshaft flexes and twists

Studs and bolts come either black oxide chrome moly or polished ARP Stainless

Higher Performance Series: Made of 8740 chrome moly forgings and heat-treated to180

Kits come with hardened parallel-ground washers

The stainless has the added advantage of being rust and corrosion resistant

A true high performance washer from ARP

Not to be used with OEM-style

J-form thread rolling after heat-treat and a special profile

Simply stated

each stud is placed verticallyinto special racks and precisely heat-treated to 190

000 psi and High Performance Series that are rated at 180

Special connecting rod washers are available