73-87chevytrucks.com

General Site Info => General Discussion => Topic started by: RichmondNick on November 07, 2017, 08:11:38 pm

Title: Which heads do i have? 1986 GMC Sierra 2500 bad valve guide
Post by: RichmondNick on November 07, 2017, 08:11:38 pm

Hello,

Can anyone guide me to know which heads i have?

Here is a vid of the valve guide
https://m.youtube.com/watch?v=XRn_v241ulk

Title: Re: Which heads do i have? 1986 GMC Sierra 2500 bad valve guide
Post by: VileZambonie on November 08, 2017, 11:38:55 am

You need to get the casting numbers off of the head.  You already have the valve cover off so just clean the gunk and match it up http://outintheshop.com/faq/casting/heads.html

Title: Re: Which heads do i have? 1986 GMC Sierra 2500 bad valve guide
Post by: RichmondNick on November 16, 2017, 04:56:18 pm

Thank you zombie.

Going to look at a set from Craigslist tonight.