Hayabusazone is the internet's leading site for high performance parts for Suzuki GSXR 1300s. You will find the most complete selection of parts and pieces for for extracting the most horsepower for your Hayabusa here at the Zone. The Zone is a part of APE, known world-wide as the manufacturer of the WORLD'S FASTEST MOTORCYCLE RACING PRODUCTS. Twenty eight years of experience guarantees you the best, most experienced service you will find anywhere. We are the source.




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HEAVY DUTY CYLINDER STUDS AND NUTS

HAYABUSA "PRO MOD" STUDS

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
CS1300STN Stud Set $89.95


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HEAVY DUTY CYLINDER HEAD NUTS

 

Super heat treated cylinder head nuts are a must for high output engines.
Help prevent blown and leaking head gaskets caused by the threads in the soft stock nuts stretching. APE nuts are machined from alloy steel and fully heat treated for maximum strength. Nuts are .150" taller than stock to prevent the nut from bottoming out on the stud when the head has been milled.

For use with part numbers CS1300STN

CHN10125-10       $56.62





1/2" DIAMETER CYLINDER STUDS WITH NUTS AND WASHERS

APE has completed the first small production run of 1/2" diameter cylinder studs for the Hayabusa.  These studs are made from heat treated chrome moly steel, fully ground with rolled threads for maximum strength.
They come with special machined twelve point nuts and washers designed to fit in the busa head with no modifications.
Who would need these studs?  The guys that have had their cases redrilled and tapped 1/2-20 and find that they are stuck with having to use allen bolts.
Studs are the perfered fastener choice for high performance engines. Unlike a bolt, a stud uses all of the threads in the case, and it doesn't have to be removed during disassembly which adds wear on the case threads. Studs don't twist like bolts when being torqued down, so torque readings are more accurate.
If you have had your cases tapped out thinking those big bolts were necessary, at least now you can use studs.

COMES WITH NUTS AND WASHERS


NOW BEING SHIPPED....Part#
CS1300-1/2   Racer $159.95

CLICK HERE TO SEE SPECIAL HEAD GASKETS WHICH FIT APE'S 1/2" HEAVY DUTY HAYABUSA STUDS....