2.8 ford V6 heads, drilling cooling passages

[mr.vman]

Heads are at Machine shop for porting, larger valves, valve work (shop recommended by other posts). Question on drilling coolant passages through head fire face into water jackets. Information in, "Pruett" book is still correct? Use head gasket as pattern, in my case, Felpro head gaskets. Drill 5/16 inch hole, 1 inch deep. Four places on each head. No deeper than 1 inch or? Thank you for the help.
Steve V.

 

[DanR]

Mr V man, If you have Sven Pruett's book and follow, you are OK.

If you don't have his book, Let me know if you have any further questions and I will try to help.

Go to my link below my signature for additional info on Head work

 

[Series6]

I'm told the head gaskets for the 2.8 and 4 ltr are the same. The gasket has the hole for the passage for the 4 ltr, so some have used that as a guide. Can someone confirm?

 

[phyrman]

So does the 2.8 head gaskets not sure if the same as the 4.0 tho

 

[DanR]

The '84-'85 Ranger Gaskets are what I use as a first choice. sometimes I have found some late '70's series have the correct cooling passage holes in the gaskets.

As an example The ROL set FP-9136PT pictured is labeled for '74- '86 2.8 V6's AND IT HAS THE Correct passage holes needed for the recommended modifications by Sven Pruett.

The label references VICTOR PArt Number (s) : 3778 and 3516

 

[Series6]

So does the 2.8 head gaskets not sure if the same as the 4.0 tho

My mistake. You are correct

 

[DanR]

Beware!! Not all 2.8 V6 Head Gaskets have the holes we are speaking of for the cooling passages