Heavy Duty Cylinder Studs

All APE STUDS FEATURE ROLLED THREADS AFTER HEAT TREAT FOR MAXIMUM STRENGTH.

GSXR 1000:

Heavy duty cylinder studs are necessary to prevent head gasket leakage in high compression and turbocharged engines. Stock studs are made from poor material that will stretch and allow gasket leakage.

APE studs are made from heat treated chrome moly, centerless ground, and have rolled threads after heat treat for maximum strength.

APE originated heavy duty studs for performance motorcycles and today is recognized as the industry's leading manufacturer. We supply studs to all of the top engine builders.

No matter whose parts you have in your engine, join the top names in racing and insist on APE studs to hold it all together.

Hayabusa:

The Hayabusa engine uses head bolts instead of the preferred stud arrangement. When engines are subjected to bigger bores, higher compression ratios, nitrous oxide, turbo, etc. the stock head bolts are not up to the task. Blown head gaskets are the result.

APE is the leading manufacturer of heavy duty cylinder studs for motorcycles. The Hayabusa studs are made from ultra high heat treated premium 8740 steel and feature rolled threads for maximum strength. Torque to 60 lbs. APE head nuts are machined from billet stock and heat treated to prevent threads from stretching. This set up is a must for all serious go fast motors. Extra thread on the nut end allows them to also be used with no plate when using APE CHN10125-10 cylinder head nuts.

Please note that the cylinder head can not be removed with engine bolted in place when using studs.

Heavy duty main bearing studs.

Must use in conjunction with part#CHN10125-10

HAYABUSA LONG CYLINDER STUDS

Shortly after we started making Hayabusa cylinder studs, people started using spacers for strokers, etc so we increased the length 6mm for a total length of 8.00" (203.2mm)

Now with 9 and 10+ strokers, we have been getting request for even longer ones. We have just finished a new production run of Busa studs and we made a limited number at 8.30" ( 210.8mm)

The same legendary quality and strength of our other 10mm Pro Mod Busa studs. There is no extra charge for the longer length, but quantities are limited. First come first serve.