cam button vs thrust plate

[lenc23]

are there any advantages to using the thrust plate on a 109 block or are they for stage blocks?

 

[charlief1]

A cam thrust plate is used on billet roller cams with an odd fire nose. It won't work with the regular cam.

 

[lenc23]

ok thanks for the info, i saw it in the T/A catalog and was curious.

 

[yullose]

Here's a good visual example.

http://www.turbobuick.com/forums/parts-sale/277750-erson-solid-billet-roller-cam.html