Stronger headbolts? 3.8l
#1
Stronger headbolts? 3.8l
Hi guys have a 3.8l wrangler unlimited blew my head gasket. Does someone make some stronger head bolts? Cannot find anything! Looked high and low other shops did too. Anyone have luck? Thanks
#4
#5
JK Jedi Master
The OEM head bolts seem to be holding up fine.
#6
Too much boost.... Lol it's supercharged 10--13 psi is too much for my 3.8l weather I find stronger bolts or not once I fix it I'm strictly sticking to wheeling the heck out of it and not raping it on the streets anymore.
#7
JK Jedi Master
A stronger head bolt may require a differently designed head gasket.
And then you have to ask...will the threads in the block take the load of a stronger bolt. (thermal expansion load, that is.)
Last edited by ronjenx; 02-18-2016 at 06:05 PM.
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#8
I have no idea one bandaide to another lol can't believe no one else ran into this problem
#9
With boosted applications Cometic head gaskets and ARP studs are your best friends. Oh, and tighter valve springs also LOL.
Here is a page from Cometic's site. Cometic Custom Gaskets Says they make custom gaskets. I don't see the 3.8 on their site, but maybe they would make you a set. If so, run those with ARP studs and you'll be golden. Also, with that much boost you may run into valve float problems. You may need to find valve springs that will support that much boost. Maybe the stock one will, I'm not sure.
Here is a page from Cometic's site. Cometic Custom Gaskets Says they make custom gaskets. I don't see the 3.8 on their site, but maybe they would make you a set. If so, run those with ARP studs and you'll be golden. Also, with that much boost you may run into valve float problems. You may need to find valve springs that will support that much boost. Maybe the stock one will, I'm not sure.