3/8-24 x 2.250 hex black oxide bolts

3/8-24 x 2.250 hex black oxide boltsMaterial: 8740 Chrome Moly Finish: Black Material 2: Finish 2: Origin: USA

And there’s more

The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating

ARP Pro Series head bolt kits are application specific and designed to deliver superior strength typically associated with competition engines

Many professional engine builders prefer to use studs because of their ability to properly position the gasket and guide the cover into position

Any increases in combustion pressure can lead to problems like blown head gaskets or catastrophic engine failure

L19 is a very high strength material compared to 8740 and ARP2000 and is capable of delivering a clamp load at 260

Most applications have undercut short bolts that can help eliminate head gasket failures through providing more “stretch” to compensate for the additional compression of gaskets

Made from ARP2000 and heat-treated to 220

Our kits come in 8470 or polished ARP Stainless and cover spacers up to 3

super-alloy field

Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place

Ford GM 10- & 12-bolt rear ends to the beefy Strange differentials found in Top Fuel and Funny Car applications