V-Spec04 wrote:

Where can I order these and how much?

http://www.carshopinc.com/product_info. … 1/251-4701

Here ya' go......Have fun!

mjeffries wrote:

hmmm, how much better are these than the AJUSA head bolts?  I ordered those on accident 

The question is always asked, which is better, cylinder head studs or bolts? The answer, invariably, depends on the installation. On many street driven vehicles, where master cylinders and other items protrude into the engine compartment, its probably necessary to use head bolts so that the cylinder heads can be removed with the engine in the car.

For most applications, however, studs are recommended. And for good reason. Using studs will make it much easier to assembled an engine (especially a racing powerplant which must be services frequently and quickly!) with the cylinder head and gasket assured of proper alignment.

Studs also provide more accurate and consistent torque loading. Here's why. When you use bolts to secure the head, the fastener is actually being "twisted" while its being torqued tot he proper reading. Accordingly, the bolt is reacting to two different forces simultaneously. A stud should be installed in a relaxed mode - never crank it in tightly using a jammed nut. if everything is right, the stud should be installed finger tight. Then, when applying torque to the nut, the stud will stretch only in the vertical axis. Remember, an undercut shorter stud will have a rate similar to a longer, standard shank stud. This provides a more even clamping force on the head. Because the head gasket will compress upon initial torquing, make sure studs and bolts are re-torqud after the engine has been ran.

Last edited by darkguyver82 (2008-10-22 01:46:24)