Questions & Answers
Questions: What is the thread and thread length into the block so I can the correct heli coil
Question By: Frank Sleder on Oct 7 2021 4:56 PM
7/16-14 x 7/16-20
Answer By: Willys Jeep Parts Tech on Oct 7 2021 11:38 AM
Questions: Would these work on an f134?
Question By: Brian Myers on Jun 15 2021 7:14 PM
805730 is what you want for the 4-134 F head.
Answer By: Willys Jeep Parts Tech on Jun 15 2021 1:15 PM
Questions: what type sealant do I use on the studs when they are installed?
Question By: Roland L Stegner on Jul 4 2020 1:42 PM
Any good hi-temp sealant should be fine.
Answer By: Willys Jeep Parts Tech on Jul 6 2020 5:48 AM
Questions: How long should head studs be??? I have a 1949 CJ3A with 134 L engine. . The head studs are 3.325” long, but do not seem long enough. Even after torquing the head down, the studs only goes about ½ way the nuts on the head.
Question By: Joel Hokanson on Aug 29 2018 1:32 AM
3.5" in length.
Answer By: Willys Jeep Parts Tech on Aug 29 2018 5:25 AM
Questions: Shouldn't some studs be longer than others to accommodate bonding straps, oil filter brackets under the nuts? do you offer different lengths? thanks
Question By: shawn on Apr 15 2018 3:50 PM
Originally they were all the same size. This is what we've used on all our rebuilds for the flat head, 4-cylinder motor. Thanks
Answer By: Willys Jeep Parts Tech on Apr 15 2018 3:31 PM
Questions: rebuilding an L6-161 lightening engine I just want to make sure this is the proper stud
Question By: patrick on Mar 19 2018 6:47 PM
Sorry, this is for the 4-134 L motor.
Answer By: Willys Jeep Parts Tech on Mar 20 2018 6:23 AM
Questions: I want to place an order soon because I am doing top engine work on my M38. I believe I need 5 studs that are longer than the others. 3 fo the lifting hook, and 2 for oil cleaner bracket. Do you also sell these longer studs?
Question By: Don Sites on Feb 23 2018 1:50 PM
These studs are all standard size. If you need longer ones give us a call toll free and we can go over it. 888.648.4923. Thanks
Answer By: Willys Jeep Parts Tech on Feb 23 2018 7:34 AM
Questions: I'm going to replace the head gasket, and I think the collective wisdom is to replace all the head studs also. Are they all the same length? It looks like some of mine are shorter than others. I have a 51-3A with a rebuilt engine.
Question By: Bill Foraker on Jun 5 2016 7:47 PM
You need 15 of these and you are all set. Yes, I would replace. Also make sure to put sealant on them as well.
Answer By: Willys Tech on Jun 6 2016 5:55 AM
Questions: I have an MB engine, are the old TR cylinder bolts safe to use? What is the correct specification of a replacement bolts? How many bolts and studs is required? Thanks
Question By: Frank on May 14 2015 12:00 AM
They never used bolt originally they were studs on this with nuts. If you do use a bolt make sure it is hardened.
Answer By: Willys Tech on May 14 2015 12:00 AM
Questions: Do you need longer studs for the engine lifting bracket? If so, do you carry them?
Question By: 51 M38 on Apr 28 2015 12:00 AM
We typically use a longer bolt when doing this.
Answer By: Willys Tech on Apr 29 2015 12:00 AM
Questions: What is the thread on the lower portion of this stud? I broke some in the block and would like to drill and tap them out.
Question By: Thomas on Jan 1 1970 12:00 AM
They are coarse thread on the stud that goes down into the block. The nut end takes the fine end.
Answer By: Willys Tech on Jan 14 2013 12:00 AM
Bottom of studs are 14 TPI,Top of studs are 20 TPI!
Answer By: Randall Stewart on Sep 17 2021 5:12 PM
Questions: What is the thread on the lower portion of this stud? I broke one in the block and would like to drill and tap it out if possible.
Question By: 46-2A on Aug 2 2012 12:00 AM
Its coarse thread into the block.
Answer By: Willys Tech on Aug 2 2012 12:00 AM
Questions: I have a 1949 CJ3A early model with a Kaiser Supersonic Head. do you have to tourqe the studs into the engine block at the same poundage as the head or do you just snug them up? Also do you use any sealant on the head gasket or any other treatment before instalion? The book says no, but I believe those old gaskets were made of copper or some other stuff. Thanks Tom
Question By: Tom on Mar 15 2012 12:00 AM
Sealant is not necessary but it doesnt hurt. I would torque them enough to make sure you have a good seal.
Answer By: Willys Tech on Mar 19 2012 12:00 AM
Questions: If you replace the head gasket do you have to replace these, or can you use the old ones?
Question By: Tom on Mar 8 2012 12:00 AM
It is typically a good idea to replace the studs. They do stretch over the years.
Answer By: Willys Tech on Mar 9 2012 12:00 AM
Questions: DO YOU SELL THE NUTS FOR THESE BOLTS?
Question By: DIDIER BOUYE on Oct 25 2010 12:00 AM
The nut is a local pick up item. Its just a standard nut.
Answer By: Willys Tech on Oct 25 2010 12:00 AM