Teflon valve seals and roller rockers

[Jeff Dodson]

I am going to put the Teflon positive seal valve seals on my 87 5.7, I did it on my 85(87 motor). Can't remember, the guide size (7/16 ?) anyway, I am going to order the 1.6 roller tip rockers at the same time.... Just need to make sure to order for the right size studs and seals

 

[Driver4r]

LOL, i just got rid of the positive seals and converted my vortecs to umbrellas.

Pretty sure your studs should be 3/8ths.

Unsure of your valve diameter tho.

 

[Jeff Dodson]

Why did you get rid of the positive seals

 

[Driver4r]

I went with umbrellas cause of what my machines had for cutters. His seat cutter was slightly bigger than my valve guides, so we when with them to expand over the slightly larger diameter.