ARP Head Studs
#21
03-12-2016 | 02:00 PM
Pro Wrench
Joined: Nov 2015
Posts: 1,935
Likes: 189
From: Coastal Georgia
Same question came up when researching parts for HG R&R. Read from several forums found doing a web search. Apparently there's a difference in hole/thread depth between the old/new blocks. Updated kit apparently has the correct longer length fasteners and the one recommended by ARP for the application. Reasonably priced with 20% off coupon, ARP 157-4301 Head Studs w/12-Point Nuts | Autoplicity and/or Lucky8 prices good too.
Most of same threads debate whether it's worth the extra cost when older kits seldom pull the threads out of the aluminum block if lower than recommended torque used.
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Most of same threads debate whether it's worth the extra cost when older kits seldom pull the threads out of the aluminum block if lower than recommended torque used.
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#22
03-12-2016 | 02:01 PM
I'm about to get my head gaskets replaced on my 02 Kalahari with 225K on it for routine regular maintenance. I'd like to go with the ARP stud's but according to AB you aren't supposed to use the cheaper 124-4003 kit with the composite head gaskets.
What in the world is the difference between the 124-4003 & 157-4301 kit? I just want to make sure I just don't save $100.00 on the studs and then cause my head gaskets to go out prematurely.
Any info or input would be greatly appreciated.
What in the world is the difference between the 124-4003 & 157-4301 kit? I just want to make sure I just don't save $100.00 on the studs and then cause my head gaskets to go out prematurely.
Any info or input would be greatly appreciated.
#23
03-12-2016 | 02:09 PM
Baja
Joined: Feb 2011
Posts: 9,298
Likes: 317
From: Boston Strong
I believe it was Zack from Rover North and the guys from Lucky that measure up the two sets not finding any difference in the post I read. But I've wrong before
Last edited by drowssap; 03-12-2016 at 02:13 PM.
#25
03-12-2016 | 04:34 PM
Just did a search, and on pirate4x4 forum, the consensus was there were more threads on the block end for less chance of destroying the block threads. Some members pulled the block threads and had to heli-coil. Cheapest I found them was 179.00. I will go with these when the hg have to be replaced.
Last edited by Joemamma1954; 03-12-2016 at 08:46 PM.
#26
03-12-2016 | 04:57 PM
Camel Trophy
Joined: Nov 2012
Posts: 3,717
Likes: 246
From: Longview, Texas
http://www.lucky8llc.com/Products.aspx?ProductID=7471
#27
03-12-2016 | 05:39 PM
Camel Trophy
Joined: Nov 2012
Posts: 3,717
Likes: 246
From: Longview, Texas
Same question came up when researching parts for HG R&R. Read from several forums found doing a web search. Apparently there's a difference in hole/thread depth between the old/new blocks. Updated kit apparently has the correct longer length fasteners and the one recommended by ARP for the application. Reasonably priced with 20% off coupon, ARP 157-4301 Head Studs w/12-Point Nuts | Autoplicity and/or Lucky8 prices good too.
Most of same threads debate whether it's worth the extra cost when older kits seldom pull the threads out of the aluminum block if lower than recommended torque used.
......
Most of same threads debate whether it's worth the extra cost when older kits seldom pull the threads out of the aluminum block if lower than recommended torque used.
......
Is 12pt the way to go? I use my 5/8th impact socket on them and it is 6 sided. I'm sure I could find another socket.
#28
03-12-2016 | 08:07 PM
#29
03-12-2016 | 08:49 PM
Get the Fel-Pro MLS head gaskets and use the copper coat gasket spray, keep your temps below 200 and should be your last hg job.
#30
03-12-2016 | 08:53 PM
Pro Wrench
Joined: Nov 2015
Posts: 1,935
Likes: 189
From: Coastal Georgia
12pt sockets are readily available and should already be in your box. 6pt stud nuts another option.
I just want to do the best head gasket job possible.
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Last edited by number9; 03-12-2016 at 09:03 PM.