Are Eagle / RPM / 440 Source cranks still basically the SSDB (Same "Stuff", Different Box) for QC these days? Has anyone of these "budget" cranks reigned in their QC enough to be able to buy one and NOT expect to have to drop more $$$ to have it cut .010" right from the start?

EDIT: Let's throw Ohio Crank into this mix, too, since there's a lot of flak about their stuff posted over on SpeedTalk.

Also, are K1 Technology's cranks still legitimately "ready to run" in terms of OOB machining (balancing not withstanding)? Seems like the price difference is close to what you'd pay for one of the above brands + a regrind job. Too bad they never offered a 6-bolt 3.75" RB crank (only an 8-bolt version in that stroke).

I bought an Eagle from Muscle Motors that was spot on, it has made about 300 passes at 7200 RPM's.

I think the Eagle stuff is a little better than the others you mentioned.

Got an Eagle in mine. I have a few passes on it

I have a Eagle and seems to be ok but dont have that many passes on it yet. It didnt have to get reground or balanced. The eagle rods did need a little bit of work.

only problem with our Eagle is that the flange is .150 to thick which caused a hardened pump to be eaten up in the trans...

a 1/4" mid plate will solve this..we did have the PTC converter machined when we didn't have a mid plate..

OOOOPS! hard to believe it is still running! No it is balanced. I dont know if It came from eagle balanced or if the place the parts store ordered it from balanced it. There is a eagle balance sheet that came with it and all the weights hand writen in and I paid for balanced. The small end of the rod was to small for the .990 pins.

i bought an eagle crank years ago. mains & rods had to be cut 10 thou. buy american!!!!!!!!!!!!!!!!!! stay safe, seeya.

i'll just sit here and

i love that term, "spot on".

Oh boy, just when you thought these threads couldn't get beaten to death any more.

Whatever your here, the varying stories between not having to touch it, to grinding it .010 under should tell you about the consistancy in finish machining quality.

BTW - Although not mentioned in th OP's list, K1 is far better in my book.

Allan G.

many years back i bought a Source crank & a Eagle, paid the money & sent them to a Metalurolist to see which was the better quality. his verdict was the Eagle crank would crack before the Source unit as his tests showed the Eagle heat treatment made it more brittle. that was a bit dissappointing as the Eagle looked to be better finished. i'm still using that Source crank 7 years later with 700+ hp.

Have two 440 source stroker engines, a 400 stroked with the 4.15" (500 cid), and a 440 stroked with a 4.25" (505 cid.)
The 400/500" engine is automatic, so I didn't check the hole for the transmission pilot bushing, but on the 4.15" crank it was a hair too tight, but easy to fix, just cleaned it up with the correct drill bit size (I think 15/16"?)
The only other issue I had with both kits was the rod side clearance on the #5/#6 rod journal? Just sanded the sides of the rods a few thousandth and it was fine.
After reading all the complaints, I really checked over the crank when assembling the 505 engine, and I mic'ed every journal which was right on spec. I also checked the indexing on every throw, and it checked out fine too. The actual crank stroke was 4.252", but was the same on each throw.

4 years runnin' a Eagle crank in my present smallblock and had to have it ground .010,, mainly because the index was off and some slight taper.