440ci RV engine
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Mopar Fanatic
Joined: Feb 2009
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From: ARIZONA
440ci RV engine
My friend just confused the heck out of me, he said that the 440 engines that were put into RVs are wider than the 440s used in the passenger cars, he also said that water runs through the heads as the others don't because the loads the engine has to deal with in the RV it needs more cooling. It is my understanding that all engines have coolant running through the heads. Last he said that some of the 440s had steel cranks in them and that they are more valueable and some have "other" metal cranks, again i thought that all cranks are made of steel. Is any of this true? because i have no clue?
Admin
Joined: Apr 2008
Posts: 8,173
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From: Goffstown, NH
Next time you see your friend, slap him/her on the back of the head for all of us.
All Mopar cylinder heads have coolant running through them since that is where a lot of the heat is created. If they didn't, then they would warp, crack, leak, etc.
Some 440s had steel cranks while others had forged cranks. The forged cranks are stronger. Steel is a metal so all cranks are made from a metal.
Lets recap:
Slap friend on back of head.
All mopar heads run coolant through them.
440 cranks are either steel or forged.
Hope this unconfused you.
All Mopar cylinder heads have coolant running through them since that is where a lot of the heat is created. If they didn't, then they would warp, crack, leak, etc.
Some 440s had steel cranks while others had forged cranks. The forged cranks are stronger. Steel is a metal so all cranks are made from a metal.
Lets recap:
Slap friend on back of head.
All mopar heads run coolant through them.
440 cranks are either steel or forged.
Hope this unconfused you.
Mopar Lover
Joined: Sep 2008
Posts: 700
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From: central ,IN
this proves that a person with a little info can be very dangerous, your frind was a little correct. the winabegos in the early 70`s had 440`s in them no the heads werent bigger, however, the heads did have water ports at the front for the pump housing, instead of running colant through the passages in the block they ran them through the heads themselves for better coolant flow. if you ver see a head that has round caps on the front of the heads with 2 bolts holding the cap on thats a winnie head.On the up side.the blocks are still the same. on the crank deal. all the cranks from ma mopar were steel untill 72. then for 73 they were all cast , cast cranks are a thinner cheaper material. so it was more cost effective. yes the steel crks. are more valuable, but you can use a cast crank up to 600 horse and not have any problems. its mostly a personal pref. thing.Oh yeah, indeed slap the guy on the head, but give him a hug when he starts to cry . it wont make it so bad on him.LOL
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Mopar Fanatic
Joined: Feb 2009
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From: ARIZONA
Awesome, awesome. Thanks for getting me straightened out. so i quess he half knew what he was trying to say about the water ports and the cranks. I will give him a good slap and then a even bigger hug it might surprise him that i would slap him. LOL
Mopar Lover
Joined: Dec 2008
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From: East Coast Canada
On most motors you can tell by the harmonic balancer, if it has weights welded to it its externally balanced and this is a cast crank on the inside and if there are no weights on the balancer the engine is internally balanced which is a forged crank. Maybe someone can explain this better than I. Also decoding the #'s will tell ya also.
Mopar Lover
Joined: Sep 2008
Posts: 514
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From: South Point OH
The forged balancers are only about 1" thick, the cast balancers are way thicker, it's an obvious difference.
And am I wrong, or don't all the RV cranks have 8 bolts for the flywheel?
And if you plan on using one in a car, plan on changing the oil pan and pick up. The RV generally uses one with a rear pick up and sump, the car has a mid pickup and sump.
And am I wrong, or don't all the RV cranks have 8 bolts for the flywheel?
And if you plan on using one in a car, plan on changing the oil pan and pick up. The RV generally uses one with a rear pick up and sump, the car has a mid pickup and sump.
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Another way to tell if it is a cast or forged crank is by the cast flash line where the mold halfs where when the crank was cast. The flash line is normally on the end of the web of the crank. If you are looking at rod journal you can see the flash line. A cast crank will have a narrow flash line, about 1/4 inch wide. A forged steel crank will have a wide line or no line at all on the end of the webs. Another way is to stand the crank up on the flywheel end of the crank and hit the upper most counter wieght and it will ring. A steel crank will have a longer ring and clearer ring to it than a cast crank. If any crank goes thud when you hit the counterwieght it means it cracked. I happen to have a 440 cast crank that is internally balanced. You probably think i am full of ****. But I had to add 300 grams to the counter wieghts on both ends of the crank. By the time i figured the wieght of my bob wieghts to balance the crank they cam to 2760 grams, haviest bob wieght i have ever built. But i do have an internally balanced cast crank.
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No 440 is wider that another, that was 318, a RV 440 may have webbing on the block for added strength, which Chrysler did for industrial, they may also have heli cut cam and crank gears that would mean reversed cam rotation. also reveres rotation water pump and thats about all.
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