eagle crank
#1
eagle crank
so im building a 383 and im not sure if i sure spend the extra money and go forged or just get the cast steel crank. im doing forged rods and pistons for sure. anyone ever used one of the cast steel cranks before? wanna know how much they can take.
#6
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I have the cast Eagle crank but I'm not putting a ton of power down either. They say they're good to 500hp/flywheel. I also went with cheap pistons too. So far no problems on the bottom end (that I know of, we just got it in the machine shop for top end problems and we're about to pull the oil pan to check everything).
Having said that, if I could do it all over, I would get the quality stuff. I just didn't have the patience to save up for forged bottom end. Plus I needed the car running ASAP at the time.
Having said that, if I could do it all over, I would get the quality stuff. I just didn't have the patience to save up for forged bottom end. Plus I needed the car running ASAP at the time.
#7
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I think everyone jumps on the philosophy band wagon of what Evers a popular opinion to quickly ... Sure there have been some eagle cast cranks go south .. But out of the thousands or more sold if they were truly junk don't you think it would be in your face constantly and the company would close? Or don't you think there would be more solid information from thousands of pissed broke crank owners? I would tend to think so .. So with it being a fact that thousands+ eagle cast cranks being out there and you guys saying " I got a friend who has a buddy that knew a guy who heard eagle cast cranks are ****" is really just kind like a dumb parrot repeating things with out a clue.. I Do know eagle has standards and eagle parts have limitations .. So if you buy a 500hp crank and your set up is good for 650hpand you break an eagle cast .. Well it's just your dumb *** fault... I also don't deny there are bad parts out there from time to time , but don't be so close minded about a whole brand!
Last edited by defaultexistence; 04-13-2011 at 09:29 AM.
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#9
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I think everyone jumps on the philosophy band wagon of what Evers a popular opinion to quickly ... Sure there have been some eagle cast cranks go south .. But out of the thousands or more sold if they were truly junk don't you think it would be in your fase constantly and the company would close? Or don't you think there would be more solid information from thousands of pissed broke crank owners? I would tend to think so .. So with it being a fact that thousands+ eagle cast cranks being out there and you guys saying " I got a friend who has a buddy that knew a guy who heard eagle cast cranks are ****" is really just kind like a dumb parrot repeating things with out a clue.. I Do know eagle has standards and eagle parts have limitations .. So if you buy a 500hp crank and your set up is good for 650hpand you break an eagle cast .. Well it's just your dumb *** fault... I also don't deny there are bad parts out there from time to time , but don't be so close minded about a whole brand!
Maybe I'm being close minded here...hm.
#10
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I have the cast eagle stroker crank and I had to go way conservitive on the cam just because my builder F'd up and didn't listen to me when I asked for forged. Go forged and have it ballanced and put together by a GOOD builder. Cast cranks are tempermental with the tolerance on the align hone/bore of the main caps and bearing sizing. if it's not dead nutz on you run the risk of breakage more so then with forged. If you find a good builder you wont have a problem. Just find a good builder and do it once and never have to worry about it again. Mine is apart after 2k miles and I never thought I would be one of those guys that is having endless problems like I ran into on the forums when I was looking at building. Choosing the right builder is more important then anything else.
#11
FWIW I went with the cast Eagle but with forged rods & pistons on my 383...and experienced the 2 piece crank mod as a result. Driving 30 mph nose broke off and took out the block
fortunately the builder replaced everything and this time I spent the extra $ on a forged Eagle. The builder just charged me the difference (his cost) on the cast which he got Eagle to warrenty against the price of the forged. It was about $150 difference.
This was a NA motor with a mild cam
fortunately the builder replaced everything and this time I spent the extra $ on a forged Eagle. The builder just charged me the difference (his cost) on the cast which he got Eagle to warrenty against the price of the forged. It was about $150 difference.
This was a NA motor with a mild cam
#12
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FWIW, I've seen a 383 cast eagle crank break, but I've also seen them hold together. I kind of think they're hit or miss in the cast department. I'm running a forged eagle crank in my 383 and it's holding strong. If you're looking for a pretty good amount of power, I'd say spend the change, and go forged.
#14
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Most people don't know and then on top of that if you get someone like I had do mine he did exactly what I told him not to do. So what can you really do? I didn't even know he had done it untill it was paid for and I went throught the part numbers and found out it was cast.
#15
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deff go forged, i help build a lt1 383 with a friend, machine shop assembled the short block. eagle cast crank lasted all about 4-5 months before it broke in half right in front of the #1 rod. destroyed the block. all for saving $300.00 over a forged unit.
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I built a cast eagle 383 and the thing ran great and performed well until I started having thrust clearance issues, the cranks thrust surface was basicly milled away by the bearing, my machinist thinks the converter balooned or something to that effect, but the converter looks fine.
I now am running the forged eagle crank, its a nice peice.
I now am running the forged eagle crank, its a nice peice.