Originally Posted by LT5John
Chad, great to hear from you...yeah, some concerns about the CHE guides...I will wait a little longer then yank the heads off and check them...Call me when you get a chance, I do not have your current number...Regards, John
CHE has been manufacturing valve train components for over 30 years and manufactures precision valve guides for all applications of racing. CHE has NOT had problems with excessive valve guide wear in ANY application the guides are being properly used in.
The following situations can cause improper wear:
1. The valve manufacturers do not micro polish and coat the valve stems. Several manufacturers have had problems with their stems not being micro polished correctly, and then put a CRN coating on them. If the valve stem is rough and is then coated, the valve stem will act like a file, and it will destroy any manufactured guide in a short time.
2. If the valve train geometry is not checked when putting in a larger cam, it can cause extensive valve guide clearance in a short period of time.
3. Improper initial guide clearance from the start can also cause the guide to wear out prematurely.
Should you have any questions regarding our valve train components, we are more than happy to answer via email or phone at 805-499-8885.