[Kuban]

Originally Posted by IHateHacks

I'm assuming they used stock head bolts?

If I was doing what you are doing, first I'd order ARP bolts. Then when they arrived at my door, I'd lube them with the special moly lube they come with and looking at the TSRM diagram for LOOSENING the head bolts, I'd remove one at a time and swap them with the ARP's, torqueing them to at least 70ft/lbs. You don't need to do them in increments unless the head isn't torqued yet, but since the stock bolts are already in there and torqued you can just swap one out at a time, that way you won't disturb the gasket.

Or you can retorque the stock ones using the TIGHTENING sequence in the TSRM. But you have no idea what jasper used for lubricant on the head bolt threads, probably 30 weight motor oil which is ok, but not optimal for setting the correct torque. ARP does not recommend using 30 weight motor oil. ARP shows the difference between using 30 weight oil and their moly lube, moly lube only needs 71ft/lbs while 30 weight needs 90ft/lbs. This is because 85% of the torque you apply to a dry unlubricated bolt is lost due to the friction between the male and female threads while the rest is used to actually hold the part on. And not all lubricants are created equal. ARP moly lube is superior to any moly lube on the market.

ok thanks ill call jasper and ask them what they use in the morning. Or i might just consider getting the arp's.