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Engine Help => Briggs OHV & Vanguard => Topic started by: mod 76 on May 15, 2019, 08:59:01 AM

Title: Vanguard head bolts
Post by: mod 76 on May 15, 2019, 08:59:01 AM
So I'm looking into either using ARP head bolts or ARP head studs .. but I can't seem to find the head bolt dia and thread pitch .. it's a 35ci block with 38 heads. Just thought I'd ask now so I can order them while I'm at work .
Title: Re: Vanguard head bolts
Post by: birdman_express on May 15, 2019, 11:00:08 AM
It is a metric pattern, I had a link on my old computer
for the fastener sizes. After lunch I will see if I can find
something out.
Title: Re: Vanguard head bolts
Post by: mod 76 on May 15, 2019, 11:46:50 AM
That's be great , thanks ...

Once I find that out , I'm hoping ARP  will have something I could use...

I'm surprised that with all the after market parts available for the vanguard , that there isn't anyone offering them on thier web sites.
Title: Re: Vanguard head bolts
Post by: mod 76 on May 15, 2019, 11:02:48 PM
So I did find the size ..  M8x1.25 x 85.7

So ARP didn't offer a stud , but do have a five pack of 8x1.25x85mm bolts for $37.00 .  Part # 661-1013

This will fit my 35ci vanguard with 38ci heads ..
Title: Re: Vanguard head bolts
Post by: mod 76 on May 16, 2019, 09:45:25 AM
 Wrong part # .. that was for 80mm long bolts ..

For the 85mm long bolts , it's 771-1018 ( ARP )
Title: Re: Vanguard head bolts
Post by: Dackgo on July 09, 2019, 12:55:39 AM
Thanks for the info
Title: Re: Vanguard head bolts
Post by: notsofast on August 07, 2019, 06:07:52 AM
661-1018 are the ARP M8 x 1.25 x 85 hex black oxide bolts