Dodge flathead 6 head bolt torque

Tighten the bolts in the sequence shown. The Willys Service Standards booklet, pg 34, says "Cylinder head screws - ft lbs. This includes,BossW and related variants. Other Torque Specifications for V8. Thanks to trustdestruction for this information: All specs below are according to the Honda Service Manual except info about ARP head studs.

dodge flathead 6 head bolt torque

Give an additional 90 degree turn. After we handled all 21 stud engines, the 60 HP and the monster cui engines, we'll look closer to all 24 stud engines in this part. One of the most important steps is to actually find a good, usable core; many have been sitting for a very long time and the engine design is prone to cracking. Step 2: Tighten all bolts in sequence to 22 Nm in. Actually I think this is very close to the method used to torque each head on a flathead engine except they have 18 or 24 headbolts.

Retorque after at least miles. Tighten bolts 1 through 10 to 65 lb-ft.

Install rear bonding strap, oil filter, and air cleaner bracket. In increasing number sequencetighten the head bolt in three stages. As related in Fuel Flow, a stock head from. The aluminum heads are also strong on the bottom end of the scale. Torque down the head with at least three sequences. Tighten studs to 40 ft-lbs.

dodge flathead 6 head bolt torque

Iron is lbs. Thank You, Bill. Then shut it off. Here are the some torque values and sequence instructions for torquing the cylinder heads on a Ford FE motor. Torque in 3 steps: 20, 40, 55 ft. Dorman Head Bolts come in a box of ten because they are the long bolts for the Ford V8 which is the same head bolt as the six. Step 3. Head Nuts Alum. The connecting rods with their integral studs are an example. Torque to lbs, run till warm, recheck to lbs with care.

I cannot find my manual I had and have some head work to do, thanks. Add to this that you are fitting aluminum heads, and then the smallest incremental torque increases in the world won't matter either way once the engine is started and brought to temperature.Each Jeep engine has unique head bolt torque specifications.

Head bolts hold the engine head onto the engine block and resist the force of engine compression. There are two key pieces of information with each torque specification: the sequential order for tightening the set of bolts and the amount to tighten the bolts at each tightening step. There may be eight, 10 or 14 head bolts on a Jeep engine depending on the number of cylinders and the displacement.

There are two rows of five head bolts on the 2. From the front to the back, the driver side bolts are numbered 8, 5, 1, 4, 7, while the passenger side bolts are numbered 10, 6, 2, 3, 9. From tothe bolts are tightened in these steps: first to 25 ft. From and on, the bolts are tightened in these steps: first to 22 ft. There are two rows of seven head bolts on the inline six-cylinder engine.

From front to back on the driver's side, they are numbered 11, 7, 3, 2, 6, 10, 14, and on the passenger side, they are numbered 12, 8, 4, 1, 5, 9, Bolts are tightened in these steps: first to 22 ft. There are two rows of four head bolts on each bank of the V6 engine. Each bank is tightened using the same steps and specifications. From front to back on the driver's side.

Bolts are tightened in one step: first to 70 ft. From the front to the back, the driver side bolts are numbered 9, 5, 1, 5, 8 and the passenger side is numbered 10, 6, 2, 3, 7. The bolts are tightened in these steps: first to 25 ft. This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

To submit your questions or ideas, or to simply learn more about It Still Works, contact us. V6 Engine There are two rows of four head bolts on each bank of the V6 engine. About the Author This article was written by the It Still Works team, copy edited and fact checked through a multi-point auditing system, in efforts to ensure our readers only receive the best information.

Photo Credits jeep rouge 2 image by Jerome Dancette from Fotolia.Can anyone help me out with this I can't find anywhere what the torque specs are for a 47 and what order to tighten the studs. My manuals haven't came in yet. Initial torque is 70 ft. The sequence starts in the center of the head and works outward in a star pattern.

Torque Specifications for Early Vehicles

Looking at the head from the passenger side. Then again after a third or fourth heat cycle. The jury is out as to whether to use gasket sealant, grease, or bare in the gasket and whether it is necessary to put thread sealer on the bolts that go through coolant passages. I sprayed the head side of the gasket with copper gasket spray, and did not use any sealer on the head bolts.

No issues in 40k miles. Do you have bolts or studs with nuts? Bolts are at 70 studs are at 55 due to the fine SAE threads. I guess he feels like that this sandwiches the whole gasket more evenly.

Kind of a pain, but intend to do that on mine. He is a wizard and the most experienced person I know of with these engines. Each to his own,guess I'm less finicky, but that method certainly won't hurt anything.

Dodge Flathead 6 First Start In 32 Years!! (MATER IS ALIVE!!)

Don, i heard that every manufacturer specifies different torque specs. Im using ARP studs and my mechanic believes the torque spec is specified by manufacturer and that studs should have higher torque specs that stock bolts. I'm with Don on this subject. The issue is clamping force, and with a finer pitch on the nuts they don't need as much torque to produce the required clamping force. Thanks to all for this great input. Would of never imaging that studs would use less torque to tighten than bolts.

You can post now and register later. If you have an account, sign in now to post with your account. Paste as plain text instead. Only 75 emoji are allowed.The ci Flat Head Six had a long run in Dodge trucks and cars, it was used as far back as the early 40's as a truck motor, and when the big trucks went to the longer style block, cars got the The ci flat head six was used from at least until in Dodge trucks, though up to it was only used in the 1 tons, and bigger.

Torque Specifications for Early Vehicles

The lighter duty trucks used the ci flat head six from the early 40s, until The and the are very similar motors, the main difference being the stroke, if you put a crank and rods into ayou will have a Now if you were a flat head expert, you could tell the difference between theand the from small clues on the engines, but for the purpose of this webpage, I will consider them the same for description purposes.

Post war Flat Heads generally have the build date cast in just below the distributor, so if your motor is dated after and has a 23" long head, then it is most likely a ci motor. The numbers listed below are a good beginning guide, but as the 23" long block was used for so many years, in so many applications, I do not have a comprehensive listing yet. If you have any info to share on flat head engine numbers, I would be interested in hearing it, as I would like to create a database off a flat head engine numbers, so a person could figure out what their engine came from if it is not the original one.

I have done some research on flat head six engine numbers, and I have found some funny things, first, the factory manuals, and the Dodge Truck books that have been written in the last few years all use the same numbering system to tell you what year, and model of truck a motor came from.

This makes sense, as the newer books used the original literature as reference material. I got my information a different way, I went out into the field, and looked at actual trucks. I checked the engine number, compared it to what the books said, and when it did not match I went looking for a reason.

Sometimes the engine had been replaced, but I kept getting to many numbers that did not match the books, and yet matched several other trucks of the same year. For example, the books claim that a W with a ci flat head six should have the following number on the engine:. So I started to check every ci flat head I could find in a truck, and I kept finding the same numbers over and over again.

Jeep Head Bolt Torque Specs

For example, the books claim that a W with a ci flat head six should have the following number on the engine: M6 W is the starting number, it would count up from there I have found that ALL the 59 Dodge trucks, DD, and WW equipped with the ci flat head six that I have checked, have the following number: M23 is the starting number, it would count up from there When I also found the 58s that I checked had L23 I figured I was on to something! I do not have enough information for 57 flat heads yet.

Please send in your info! All equipped trucks, DD, and WW L23 M23 I do not have enough info for yet, the two motors I have checked that were original did follow the pattern from the books, but did not have a sequential serial number. Now that you have seen the numbers, and learned about what the numbers are supposed to be, and what I have found the numbers to actually be, you will want to go check your own engine. Look at the pictures below to find your number.

The red arrow shows the location of the engine number, this is on the drivers side of the block, inches back from the front of the block, just below the head. I am always looking for more information on flat head six engine numbers, so if you have a Dodge truck with a ci flat head six, please check your number and E-mail me at townwagon hotmail.Prior to the late 's there were no torque specifications.

Years ago we found a universal chart of Torque Values.

torque specs flathead mopar

This chart shows torque values in foot pounds based upon the type of bolt and the diameter of the bolt. It has been extremely helpful when working on vehicles prior to Of course, it is recommended that bolt threads be cleaned with a wire brush and oiled before being torqued do not oil wheel lug bolts. Running a tap to clean out the bore is also recommended along with a good blast of compressed air for final cleaning.

Add a few drops of oil and you will be ready to torque your bolts. Technically there is a difference between the torque given to a fine thread bolt and that given to a coarse thread bolt. So for increased convenience the chart has been simplified and practical shop values given. Actually automobile manufacturers give a tolerance.

For example, when 75 foot pounds is desired, the value will be given as, perhaps, foot pounds. And this is so much more accurate than even the most skilled mechanic can manage with the old rod type torque wrench. Original bolts on early Chevys are plain steel no hardened bolts or alloys. The entire chart is being provided as good general information, but for your old Chevy, use ONLY the plain steel torque value.

When bolts are torqued, it stretches the bolt. Occasionally the original bolts need to be replaced. We offer new head bolts for Chevy 4-Cylinder engines and also Chevy 6-Cylinder engines. Cylinder Head Bolts. Phone: Tech Line : New Customers Login. All Years All Types Car Truck.

Toggle navigation Shop Search. All Years All Types Car Truck. Search Clear.Please note that the following specifications and related information are derived from a variety of sources including Ford shop manuals and industry shop manuals which may show slightly different details or specs.

In general, you will find that the information given is pretty common and straight forward. Also note that these relate to stock Ford and Mercury engines.

Any aftermarket cylinder heads such as Offenhauser, Edlebrock, and others will call for different torque specs, even though the tightening sequence may be the same. Aluminum heads call for lower torque specs and it is recommended that the mechanic re-check the torque after the engine has run up to temp and then cooled in other words….

Some owners will re-check all flathead torque settings again after the first month of operation. A clearance of. With the heads mounted without gaskets and hand tightened, rotate the engine so that all valves have a chance to open and close. At any points where the valve has moved the clay away from the combustion chamber metal, it may require some grinding to provide clearance.

The gasket thickness must be taken into account. In general, all torque sequences shown below reflect a gradual tightening from the center of the head outward, alternating from side to side and top to bottom. Some diagrams mirror the other diagrams, but essentially perform the same gradual tightening operation.

All manuals suggest that the mechanic coat the threads with a thread sealer before installation. Founder: The Flat-Spot I am a graphic and web designer by trade. I have been working to get this group to a point that I can focus on content full time. Got any questions hit me up! Provided by the Peterson Museum we share this Historical promotional[ Cylinder Head Torque Specifications. Edmunds Custom Intakes Apr 13, Thanks in advance.

Thanks so much. Help me out again, if you can. These are instructions from the Montana Boys website. Also, the previous post mentions using head bolt washers under head bolts. But most of the engine photos I've seen don't show washers under the head bolts. Has anyone used them under head bolts? You can post now and register later. If you have an account, sign in now to post with your account.

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dodge flathead 6 head bolt torque

Posted April 6, edited. Edited April 6, by Dodgeb4ya.


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