Head bolts with aluminum block?
Head bolts with aluminum block? On the iron blocks I've bolted heads to, I've had no worries about using factory GM TTY head bolts. Now I'm doing an aluminum block and am worried about torquing them so tight and stripping the threads in the block. Am I worried for nothing? GM used them at those torque specs, so why should I sweat it, right?
If you are worried, spend a few bucks and buy an angle gauge for a more precise installation. Then follow the procedure in the GM Service Manual to the "T" and you should be fine.
Block Strength Hi Brock, I agree with your view.
The GM LS engine was designed to be assembled ONCE !
I USE STUDS that match the OEM Bolt Stretch.
I can supply these ?
Lance
The GM LS engine was designed to be assembled ONCE !
I USE STUDS that match the OEM Bolt Stretch.
I can supply these ?
Lance
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Joined: Jul 2007
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From: Wilmington, De
There are certain bolts that were designed to be torqued once. Twenty years of tinkering has proven to show that these engines are capable of being assembled multiple times.
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^^^This. If you have a compressor and an air nozzle, you are good to go. When I didn't I literally used the little cans of compressed air for cleaning keyboards. I had a method where I would spray out the bolt holes with brake cleaner. Then, using the little red straw on the compressed air can, I would insert the straw as far down as I could, then start spraying and quickly lift the straw out of the bolt hole. I would do this several times until I was certain that the bolt holes were clean and dry. I know when you are doing the final turn using a breaker bar and a torque angle gauge on the head bolts you might think to yourself, dam this thing is going to snap, but it's never happened to me so take your time and do it right.
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Verdad Gallardo Stud Tech Hi Brock, I use studs made to my specification.
I have machined ARP "undercut" the studs to match the OEM stretch.
THE TRUTH is that engines ARE ASSEMBLED !
I have many engines that run 2500 RACE miles then returned to be freshened.
I WAS COMMON, before I changed to studs, to STRIP the head bolt holes with 2nd/3rd rebuild. (pulled threads)
Lance
I have machined ARP "undercut" the studs to match the OEM stretch.
THE TRUTH is that engines ARE ASSEMBLED !
I have many engines that run 2500 RACE miles then returned to be freshened.
I WAS COMMON, before I changed to studs, to STRIP the head bolt holes with 2nd/3rd rebuild. (pulled threads)
Lance