How much can stock head bolts handle?

[92_talonGsXt]

How much can stock head bolts handle? I know arp studs are better but just wanted to know much stock head bolts can handle?

 

[2gawdtsi]

Usually its advised to not go much over 20 psi.
I wouldnt go over 21 or 22 psi with stock head bolts.

 

[donniekak]

Usually its advised to not go much over 20 psi.
I wouldnt go over 21 or 22 psi with stock head bolts.

On a 7 bolt. 6 bolt headbolts have been proven past 30 psi, on my, and other peoples cars time and time again. Here is why. There are many reasons besides crank thrust problems, that make the 6-bolt a stronger engine. The rod bolts are larger also.

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[4g64fiero]

Cool story bro but the size of the rods and head bolt size is all the 6 bolt has on the 7 bolt. Bringing up thrust issues to diss the 7 bolt is a honda fanboi move.

The 7 bolt still gets the girdle and stronger pistons/better head design/ interchangeability of internals with evos.

 

[jrohner]

On a 6-bolt, I'd probably just keep the stock head bolts.