Decided to upgrade..440

Dude you do what you want but I'll tell what, the block doesn't know which direction it spun in today or yesterday. That's totally bogus information. Especially if its being bored and honed and new bearings. Be wary my friend.
 
sixgunrunner68 said:
Dude you do what you want but I'll tell what, the block doesn't know which direction it spun in today or yesterday. That's totally bogus information. Especially if its being bored and honed and new bearings. Be wary my friend.
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Thanks, don't get me wrong I appreciate your guys concern and I am going to pay close attention. It will be nice if I can bypass the whole machinist and take advantage of someone else's lost with this rebuilt one.
 
sixgunrunner68 said:
Dude you do what you want but I'll tell what, the block doesn't know which direction it spun in today or yesterday. That's totally bogus information. Especially if its being bored and honed and new bearings. Be wary my friend.
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:yeathat: :yeathat: :yeathat: :yeathat: :yeathat: :yeathat: :yeathat: :yeathat: :yeathat: :yeathat: :yeathat:
 
The salt water use would be my only concern but it seems to me he could check the cylinder wall thickness :yesnod:
 
Well guys I guess you could say I took your advice about the machinist. I came home with another engine... This one is the last one! and I got a hell of a deal on it.
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It's a muscle motors killer krate. 498ci/4.150 stroke-4.380 bore, those are actually bulldog heads (similar to Indy heads) forged Ross pistons 10.5-1cr, comp hyd 519 lift cam I believe, Indy intake, msd ignition, hand crafted valve covers. Made 626hp 640tq with a demon 850. It was an older mopar guy who was very helpful with some sweet rides and told me to call with any questions. He also had a trans built to handle it from dynamic converters that I bought as well.
 
Awesome! Now that will be fun.


BTW reverse rotation marine engines are reverse rotation because of the cam, the short block is the same regardless of rotation. I would be wary of rust issues from a marine engine. Also reverse rotation were also used in industrial applications too. Just FYI.
 
Moparchris, you are right but the teeth on the crank are also backwards. They are angled so when it runs it pushes oil away from the rear main seal, so a reverse engine would have them facing the other way.
 
I've known that our big blocks are reverse rotation engines but I've often wondered why they designed them to run that way. What is the advantage to run them in reverse? Once the rotating assembly is moving it's still gonna work the same, isn't it?
 
MuscleCar91 said:
Moparchris, you are right but the teeth on the crank are also backwards. They are angled so when it runs it pushes oil away from the rear main seal, so a reverse engine would have them facing the other way.
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You know I forgot about that. Thats a minor detail. A $50 used crank would fix that.
 
Roadcuda said:
I've known that our big blocks are reverse rotation engines but I've often wondered why they designed them to run that way. What is the advantage to run them in reverse? Once the rotating assembly is moving it's still gonna work the same, isn't it?
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This was in a boat with two 440's one ran clockwise the other counterclockwise the reasons so the thing would go in a straight line.
 
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