Jasoncinpean

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

Maertz

weld the heads on?

Riflejk

Arp... Stage 8... H1...all fastener company's. They can make anything, just may not have pre-made kits to order.

Jasoncinpean

Yeah none have pre made kits I guess I will be contacting arp for pricing

ronjenx

Have you looked into what may have caused the head gasket to fail?
The OEM head bolts seem to be holding up fine.

Jasoncinpean

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.

ronjenx

Ah yes! I figured something was up.
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.)

Jasoncinpean

I have no idea one bandaide to another lol can't believe no one else ran into this problem

T&ERun

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.

TOTL Innovations

Prodigy Turbo offered upgraded head studs for their higher boost version if I recall correctly so you probably wont need to get custom studs made.