Head bolts / studs
#3
It depends on timing and boost. For typical builds;
The stock head bolts are good to around 400hp, but some get lucky with more.
The 12.9 12mm bolts are good for around 500hp, but some hit 600hp without problems.
After you get much over 500hp, studs are the best way to go. If you have the head off for any reason, studs again.
Just remember, studs are insurance, but not a guarantee. Seems like most of the blown HGs I read about are on trucks that had studs.
The stock head bolts are good to around 400hp, but some get lucky with more.
The 12.9 12mm bolts are good for around 500hp, but some hit 600hp without problems.
After you get much over 500hp, studs are the best way to go. If you have the head off for any reason, studs again.
Just remember, studs are insurance, but not a guarantee. Seems like most of the blown HGs I read about are on trucks that had studs.
Last edited by Drothgeb; 09-10-2010 at 07:47 AM.
Thread
Thread Starter
Forum
Replies
Last Post
TheMacster
5.9L 24V Performance
2
04-14-2015 07:01 PM
klein444
6.2L & 6.5L Performance
7
04-14-2015 09:04 AM