Spindles/Pushrods/Studs/ Head Bolt


Rocker Spindles

Part #3327

Direct replacement for stock rocker spindles.  9310 aircraft steel.  56 C Rockwell.  Strongest spindles made.  Set of 4.

Pushrod Set
Part #3328E 


Chrome-moly, adjustable replacement for stock pushrods for all Evo Big Twin engines.  Guaranteed unbreakable.


Heavy Duty Cylinder Studs
Part #4603B 

Cylinder studs for Evo Big Twins are made of heat-treated B7-4140 Chrome-moly steel and are approximately 70% stronger than stock H-D studs.  The studs have rolled threads for maximum strength and ground waisted shanks to prevent stress concentration on the threads.  A superior thread finish allows more accurate torquing.  Set of 8.

Extreme Applications Cylinder Studs
Part #4603C 

Cylinder studs have 7/16 threads into the case for maximum strength.  Ideal for Supercharged NOx and can be used to repair crankcases with damaged stud holes.  Set of 8.


Head Bolt Set – Chrome
Part #4612 

Fits 1986 to present Big Twins & Sportsters.


Order By Phone Or Email 

E-Mail: sputhe@hotmail.com 

Tel: +1 (530) 268-0887 

PO BOX 2553

Grass Valley CA 95945

Sputhe name, design and related marks are trademarks of Sputhe.com 
Sputhe.com ©1997-2019.  All Rights Reserved.