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Member
Posts: 6
| Hello all, I need assistance from somebody in the States to locate on my behalf a crankshaft from a 413 long flange crank. Here is the back-ground to my request:- Here in Oz,our Dodge trucks for heavy duty work were fitted with the 361 low-block, low compression, long flange crank, we never got the 413 in Australia. The 361's went right through to 1979, even though stateside they finished about 1965, I think. I am restoring the truck and want to replace the 361 with the 413 to gain more horsepower and torque as a bolt in option. I have a 440 and a 413 here, but both are short flange, 6 bolt flywheel flanges. My options would be: rebuild the 413 or 440 and sourcing an 8 bolt long flange crank from USA; or some form of adaptor if available; or import a rebuilder 413 to obtain the crankshaft.
I guess it will require somebody in the States that knows Dodge big blocks and in particular, the truck versions with their unique heads and other bits. Can anybody assist with sourcing or indeed supply the bits I need? I believe early (1960,61,62,63) 413's have the long flange crank??
Email: trick44@bigpond.com
Thanks Guys. |
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Expert
Posts: 3575
   
Location: Netherlands | Here's another idea, you could also 'just' replace the transmission with a later trans if you can locate one locally ('62 or later, but pre '65 or '66).
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Elite Veteran
Posts: 888
Location: Peoples Republic of Oregon | Manual trans or TF??
If it is a manual then there should be some 'middle' ground so that you can use the 440 flywheel and bellhousing and hopefully, given the year, mate it to the trans.
If it is a TF then, as suggested, can you swap transmissions?
Send a note to www.wildcatmopars.com and ask about the early crank. I'll also look on my rack to see if one is hiding....
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Member
Posts: 6
| It's a manual trans and it is the highest torque box that was available, so if I contemplated another box it would be a weaker box. I must add that this is a 10 ton truck running a 5 speed Commer box (an English transmission), then driving through a 3 speed joey (brownie) then bogie drive rear end. I would not expect these transmission were fitted in your American trucks? |
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Expert
Posts: 1740
Location: Alaska | here abouts ( how do you aussies say that?) the truck engine is not very common. First time I saw one with the unusual head design, I was thinking why did Mopar do that? I have a 59 Dodge 500 that I am restoring but it will have a 318 poly backed up with a 4 speed. Many of these also had a 2 speed rear diff. but not mine. |
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Elite Veteran
Posts: 888
Location: Peoples Republic of Oregon | trick44 - 2015-07-13 2:53 PM
It's a manual trans and it is the highest torque box that was available, so if I contemplated another box it would be a weaker box. I must add that this is a 10 ton truck running a 5 speed Commer box (an English transmission), then driving through a 3 speed joey (brownie) then bogie drive rear end. I would not expect these transmission were fitted in your American trucks?
Here in the states we saw many gearbox variations through the years and something similar to yours was no doubt used along the way, however, without photos or details it is difficult to know for sure....still not sure of your vehicle year/model.
If you do not find a suitable crankshaft then you should look at the possibility of mating your trans to a post-62 B-RB bell housing and use the 413 or 440 that you have. The only potential problem would be if your input shaft was/is significantly shorter that that of the bellhousing. The other issue may be what other equipment your existing bell supports...rear mounts? clutch fork location? and whether or not a post-62 truck bell would be similar.
Obviously, if you are stuck with the post-62 engine then you will require both a bell and a flywheel. So, how big is the existing wheel? |
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Member
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| Thanks 59coupe. Yes, the heavy duty truck engines are unique, uncommon and even amoungst so called "Mopar circles", very few people know of them, know the differences or even have seen an engine. I must admit myself that it took a while trolling through magazines, workshop manuals, tech bulletins etc, before I picked the different heads and water pump differences, when researching which "go fast" bits I needed to source. But by far the biggest hurdle to get around is the 8 bolt long flange crank on some, not all, truck versions. I think it will require somebody in the states with that particular knowledge and source of parts to get me out of trouble. |
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Member
Posts: 6
| Thank you Wayfarer. You are correct, I could look at a bellhousing/trans swap, but that is a big job considering the existing bell supports clutch slave, rear engine mounts to the chassis and the existing gearbox has a PTO to drive the hydraulics to tip the tray body. Possible, but a lot of changing of equipment to end up with a gearbox that is not as strong behind an engine that is infinitely more powerful. Is that really an option? The crankshaft option is the best way, least expensive and keeps everything else relatively "stock". I am starting to think the next best option would be to use the 440 6 bolt crank with spacer to push the flywheel away from the block. Then I would need a big 6 bolt flywheel to handle the 14" clutch diameter. How difficult would it be to get a big flywheel for a 440? Or have the spacer machined? |
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Elite Veteran
Posts: 888
Location: Peoples Republic of Oregon | PM sent |
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Expert 5K+
Posts: 8445
Location: Perth Australia | You could give this bloke a try
He is in Perth
http://www.gumtree.com.au/s-ad/shelley/engine-engine-parts-transmis...
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Expert
Posts: 3035
Location: N.W. Fla. | 413 truck engines were installed in large motorhomes until sometime in the 70s. |
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Elite Veteran
Posts: 888
Location: Peoples Republic of Oregon |
...the ad indicates "Shelly WA"....is there such a location in OZ? The price sure looks good and would be killer if he is 'down-under'. |
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Expert 5K+
Posts: 8445
Location: Perth Australia | Shelley is a Perth suburb
I have met the seller a couple of times, collects a lot of mopar stuff
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Member
Posts: 6
| OK. So where are all those junkyards with 413's laying around? But I'm guessing those motorhome 413's will have 6 bolt short cranks cause they are running TF's? There must be big heavy truck wreckers somewhere that should have junk 1970's, 1980's cement trucks and the like, surely? Somebody must know of these junkyards? |
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361/413 truck engines.
