Head Bolts

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MechMan

Master Mechanic
Sep 13, 2018
337
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Kingsport, TN
I am planning on building and LS3 and I think I have most of the big parts speced out. I am now turning mu attentio to the bolts and fasteners I will need. What head bolt or studs does everyone recomend for the LS3? I was lookinf at ARP but I can't find any for the 6.2 other than the LS9 and LS7. The LS7 should work on the LS3 right?
 

Turbolq4

Royal Smart Person
Sep 25, 2017
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Stock bolt work very well. I saw a breakdown of the clamping force generated by stock, arp, and some random studs. Not enough difference to warrant the trouble.

Pretty sure those blocks use the same head bolts.
 
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MechMan

Master Mechanic
Sep 13, 2018
337
139
43
Kingsport, TN
Ok, Good to know. People were saying the studs were better than the bolts and I knew ARP is a good company. Not a big fan of TTY but I dont expect to be pulling the heads off very often so it really doesnt matter.
 

TURNA

Rocket Powered Basset Hound
Jul 24, 2009
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Factory GM
 
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Streetbu

Know it all, that doesn't
Supporting Member
May 22, 2011
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Factory, matter of fact, reuse the old TTY bolts. Torque to 72lb and you're good to go. Matt Happel, aka, Sloppy Mechanics reused his old bolts several times and made 1,092hp at the rear tires with used TTY bolts!
 

Turbolq4

Royal Smart Person
Sep 25, 2017
1,732
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Nampa Idaho
I'm sure someone won't like this bit of advice either but that's ok.

I have reused the same LS7 head gaskets and two different sets of head bolts on four different engines, being apart and reassembled no less that ten times. 15 pounds of boost+rev limiter has to be really hard on them but I've had no issues. Factory head bolts.

I had some chinesium studs and had one of the small bolts stretch and refuse to torque.
 
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Northernregal

Sloppy McRodbender
Oct 24, 2017
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Even a new set of stock TTY bolts is dirt cheap. 55ft/lbs is about what the TTY spec ends up being. A quick google search with show lots of info on that. Matt Happel also proved it with a really fancy snap-on torque wrench.

That being said I went with ARP studs because.... well the 12 points look cool on instagram pics.
 
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TURNA

Rocket Powered Basset Hound
Jul 24, 2009
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Hope you removed the heaterA/C box cause there aint no way you are going to be able the get the head on or off with studs
 
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