Header Bolts
Thread Starter
Racer
Joined: May 2010
Posts: 250
Likes: 1
From: MA
Header Bolts
Got some LGs pro LTs on order. I'm concerned over stock exhaust manifold bolt removal. Any tips on removal? Should the engine be warm or cold?
I'm also getting the LG locking bolts. I'm not sure if they're bolts or studs. Can't find them on the LG web site.
Been looking for threads on header bolts but can't find much.
I'm also getting the LG locking bolts. I'm not sure if they're bolts or studs. Can't find them on the LG web site.
Been looking for threads on header bolts but can't find much.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Ive changes DOZENS of intake manifolds and never once had an issue with the exhaust manifold bolt removal. Remove them COLD..
If it were me, I would spring for a set of STUDS.
Off topic but,, I installed a set of ARP Head Studs when I did my heads/cam up grade and MAN OH MAN what a pleasure it is to remove and reinstall the heads. Ive also seen too many people strip out the threads in the block when they torque down the two shorter outside head bolts!
Head studs help prevent that issue.
Same goes for the header bolts. Once you install the studs, there is much les a chance that you will ever damage the threaded hole in the head from pulled threads.
I have also successfuly reused the old OEM exhaust manifold bolts that are removed to install the headers without any issues. The TORQUE Value for the header/manifold bolts is 11 ft/lbs. first pass, 18 ft/lbs second pass.
Bill
If it were me, I would spring for a set of STUDS.
Off topic but,, I installed a set of ARP Head Studs when I did my heads/cam up grade and MAN OH MAN what a pleasure it is to remove and reinstall the heads. Ive also seen too many people strip out the threads in the block when they torque down the two shorter outside head bolts!
Head studs help prevent that issue.Same goes for the header bolts. Once you install the studs, there is much les a chance that you will ever damage the threaded hole in the head from pulled threads.
I have also successfuly reused the old OEM exhaust manifold bolts that are removed to install the headers without any issues. The TORQUE Value for the header/manifold bolts is 11 ft/lbs. first pass, 18 ft/lbs second pass.
Bill
Safety Car
Joined: Aug 2000
Posts: 4,537
Likes: 84
From: St. Joseph MO
Cruise-In III Veteran
Cruise-In IV Veteran
Got some LGs pro LTs on order. I'm concerned over stock exhaust manifold bolt removal. Any tips on removal? Should the engine be warm or cold?
I'm also getting the LG locking bolts. I'm not sure if they're bolts or studs. Can't find them on the LG web site.
Been looking for threads on header bolts but can't find much.
I'm also getting the LG locking bolts. I'm not sure if they're bolts or studs. Can't find them on the LG web site.
Been looking for threads on header bolts but can't find much.
Melting Slicks
Joined: Dec 2004
Posts: 3,120
Likes: 119
St. Jude Donor '10
The ARP stainless LS studs are about $100 for the set. We do have stainless bolts with washers also or the reg 8760 black oxide bolts as well from ARP that are common upgrades. The best thing about the studs are the ability to hang the gasket without having to do a funny rain dance to get them to line up right.
Race Director
Joined: Sep 2005
Posts: 11,060
Likes: 291
From: Pasco WA
The ARP stainless LS studs are about $100 for the set. We do have stainless bolts with washers also or the reg 8760 black oxide bolts as well from ARP that are common upgrades. The best thing about the studs are the ability to hang the gasket without having to do a funny rain dance to get them to line up right.
These. I loved the convenience having to remove the headers about 5 times now. Wish I'd have gone with head studs, too, as Bill suggests.
