View Full Version : eagle rotating kits


badazz70z28
12-24-2010, 09:25:50 AM
looking at an eagle rotating kit. cast crank,I beam rods,flattop pistons.anyone have input on eagle brand. it is just for a street car, not going to be turning it up nor racing it. the kits comes with pistons hung on rods, bearings ,rings cranks and balanced for 522.00

ronald66
12-24-2010, 09:31:43 AM
i got the stroker kit with cast crank and hypereutectic piston, so far so good and i don't give it the simple life,it's got 8000km. on it no problem..

Cardinal
12-24-2010, 10:42:43 AM
PLEASE have a reputable machine shop verify that the crank is straight, the pistons are dimsionaly what they say they are, and that the balance is correct.

One of my son's friends built a motor with a brand new "balanced" rotating assembly kit. Got it running and it had a vibration at 3500 to 4500 rpms. Took it apart, had a local machine shop check it and found that the crank was off 50 grams and bent!

The bottom line is that those kits are only as good as the operator making them is.

CNC BLOCKS
12-24-2010, 11:05:46 AM
If your getting sir rods do a search before buying them!!

5spd540
12-24-2010, 12:16:11 PM
I am going to be doing an engine for a customer and he has a eagle kit so I will be checking it for the weight and it to be bent I will let you know later next week if I find out anything.

ZS10
12-24-2010, 01:36:07 PM
I am going to be doing an engine for a customer and he has a eagle kit so I will be checking it for the weight and it to be bent I will let you know later next week if I find out anything.

And if it was a $5220.00 kit I'd expect you to do exactly the same.

5spd540
12-24-2010, 02:12:32 PM
We check and balance all of the stuff we install and machine

A73
12-24-2010, 02:13:11 PM
When I built my 468, I put a new Eagle crank and H-beam rods in it without any issues. Yes I took it to machine shop and they balanced everything.

hhott71
12-24-2010, 04:27:57 PM
looking at an eagle rotating kit. cast crank,I beam rods,flattop pistons.anyone have input on eagle brand. it is just for a street car, not going to be turning it up nor racing it. the kits comes with pistons hung on rods, bearings ,rings cranks and balanced for 522.00

Re-using the stock parts is warranted for what you are doing.
They'll last another 200k with proper oil changes, working cooling system etc before it will need refreshed again.
If you are over boring, of course new pistons are warranted.

badazz70z28
12-24-2010, 05:38:16 PM
thanks for the input guys.not sure if i will go this route or not but met a guy yesterday with a set of .040 je flat top pistons, high end rods with floating pins and coated bearings and a bare 4 bolt block, $500.00 ,would just need boring the block and a good crank.

CNC BLOCKS
12-24-2010, 09:27:47 PM
thanks for the input guys.not sure if i will go this route or not but met a guy yesterday with a set of .040 je flat top pistons, high end rods with floating pins and coated bearings and a bare 4 bolt block, $500.00 ,would just need boring the block and a good crank.


I see you not to far from me.

Louich
12-24-2010, 10:35:32 PM
i think the last one Harold checked for a guy was over 30 grams out.

bfmgoalie
12-25-2010, 08:36:54 AM
I've posted this a few days ago..the guy building my engine told me in the NHRA race engines he builds, he's experienced 3 rods failures with Eagle. But this is not street engines, only pure race engines.

hhott71
12-25-2010, 01:16:46 PM
A purely street engine is more than strong enough re-using the stock parts.
Even a fairly hopped up engine does well with the stock parts.

Once bolted up and running,,, A stock iron crank looks like a billet crank while peering under the hood.

z28rod
12-25-2010, 01:40:46 PM
A stock iron crank looks like a billet crank while peering under the hood.
ha true