Installing Headers
Post Fiend
Joined: Feb 2008
Posts: 5,831
Likes: 121
From: St Albert, Alberta
Ill add that to my list and do some digging on that. Shouldnt be a problem with unscrewing from aluminum heads being medium strength. I know the 242 is blue in color as well thats what is actually recommended by ARP for the ARP flex plate bolts. I just wouldnt attempt to use that cause 300* max temp is not enough for headers.
As it is basically just a higher temp version of 242.
2422 TDS
http://tds.henkel.com/tds5/Studio/Sh...EN&plant=WERCS
Post Fiend
Joined: Feb 2008
Posts: 5,831
Likes: 121
From: St Albert, Alberta
Sorry to drift off topic by posing a technical question, but would there be any advantage to ditching bolts in favor of studs and nuts?
The stud length could be chosen for adequate engagement in the block (any opinions on that?). The protrusion could be adjusted for the thickness of the nut plus a couple of extra threads.
Installation overall might be easier as you could hang the gaskets on the studs, versus trying to align them with the bolts.
The stud length could be chosen for adequate engagement in the block (any opinions on that?). The protrusion could be adjusted for the thickness of the nut plus a couple of extra threads.
Installation overall might be easier as you could hang the gaskets on the studs, versus trying to align them with the bolts.
Studs may and likely would have some advantages in this application, but really in most instances, bolts are just as, and potentially more practical. You can use a reduced-sized head bolt like Socket (Allen), E Torx or 12 point headed bolt for improved clearance for install and removal. Whereas it is pretty hard to reduce the size of a nut on a stud of a fixed diameter.
The back-out problem can be mitigated by a high temp thread locker. A bit of high temp thread locker will stop header bolt back out it in basically all instances.
Lead Driver
Joined: Apr 2007
Posts: 5,958
Likes: 105
From: Houston
Ya 2422 gets overlooked a lot due the similarity of the name to the regular 242 I think people just think it's a typo. Loctite could have done a better job on that and maybe called it 242HT or something of the like.
As it is basically just a higher temp version of 242.
2422 TDS
http://tds.henkel.com/tds5/Studio/Sh...EN&plant=WERCS
As it is basically just a higher temp version of 242.
2422 TDS
http://tds.henkel.com/tds5/Studio/Sh...EN&plant=WERCS
Lead Driver
Joined: Apr 2007
Posts: 5,958
Likes: 105
From: Houston
Studs may and likely would have some advantages in this application, but really in most instances, bolts are just as, and potentially more practical. You can use a reduced-sized head bolt like Socket (Allen), E Torx or 12 point headed bolt for improved clearance for install and removal. Whereas it is pretty hard to reduce the size of a nut on a stud of a fixed diameter.
The back-out problem can be mitigated by a high temp thread locker. A bit of high temp thread locker will stop header bolt back out it in basically all instances.
The back-out problem can be mitigated by a high temp thread locker. A bit of high temp thread locker will stop header bolt back out it in basically all instances.
Fleet Mechanic
Joined: Jul 2003
Posts: 1,844
Likes: 129
From: Atlantic Canada
I have 1/4", 3/8", and 1/2" torque wrenches. I learned the hard way many years ago not to try and do low torque numbers with bigger torque wrenches.
Anyway...for headers on a 302, get the correct Remflex gaskets and 1" ARP header bolts, and then set it and forget it...just like Ron Pompeil says...
Lead Driver
Joined: Apr 2007
Posts: 5,958
Likes: 105
From: Houston
I know with my BBK 3510 shorty headers on my 302, I was able to torque almost every one of the bolts. I think there were a couple I had to do with a wrench...but seriously, if you've spent enough time working with tools, you get pretty good at knowing torque by feel. Some of you may want to flame me for that...but torque specs, in many cases, aren't nearly as critical as people think they are.
I have 1/4", 3/8", and 1/2" torque wrenches. I learned the hard way many years ago not to try and do low torque numbers with bigger torque wrenches.
Anyway...for headers on a 302, get the correct Remflex gaskets and 1" ARP header bolts, and then set it and forget it...just like Ron Pompeil says...
https://www.youtube.com/watch?v=tLq27iOW0R0
I have 1/4", 3/8", and 1/2" torque wrenches. I learned the hard way many years ago not to try and do low torque numbers with bigger torque wrenches.
Anyway...for headers on a 302, get the correct Remflex gaskets and 1" ARP header bolts, and then set it and forget it...just like Ron Pompeil says...
https://www.youtube.com/watch?v=tLq27iOW0R0
Thread
Thread Starter
Forum
Replies
Last Post
