Cranks/rods, Scat, Eagle

[squirt]

I tried a search but I guess I'm a tard cause it came up empty and I know I've seen the info before:rolleyes:
Putting together 496bbc and have got 2 quotes, one is Eagle stuff and the other Scat. Any thoughts or pros and cons on the stuff. Price is fairly close with Scat being alittle cheaper
Target for the motor is700hp na, plus 200 nos

[soupersonic]

I know three engine builders and they all use SCAT for thats worth.

[GofastRacer]

A note about Eagle cranks if you go that route, the machine work is out to lunch on them, best to pick one up semi finished and then get it finished by a "quality" shop!...

[VAMI]

Most Eagle cranks I have used have a bunch of runout (not stright) Scat stuff always seems stright and all on size.

[396_WAYS_TO_SPIT]

A note about Eagle cranks if you go that route, the machine work is out to lunch on them, best to pick one up semi finished and then get it finished by a "quality" shop!...
Ill second that.....

[Nucking futs]

I don't care what crankshaft you buy, Always send it out to get the once over. I just had my brand new crower checked by Lopez crankshaft and it needed some details done to it. I mean it was only 45 bucks to get it done, but it could have caused some problems down the line.
Just my opinion..:D

[bajarunner]

Honestly I have used both, and neither one are a very great choice, they both have there ups and downs. As said the Eagle has a poor surface and runout, and the scat has poor counterweight indexing that makes for some not so great balancing. If you must choose between the two go with the Eagle, just plan on sending it out to be finished up so to speak. In the long run the Eagle will work better IMO. I assume the dollar is a concern or you would not be looking at either of the two company's you mentioned. I'm not sure what your budget is but the rotating assembly is not one area the cut $, I would suggest you look at a Lunati rotating assembly, for the money there a great deal because they come completely ready to bolt in. Balanced, finish polished, pin fit, matching bearings straight and ready to run, good kits for the $$.
BTW I would never use any crankshaft made by Scat or Eagle (not saying there bad) or any crankshaft out of China for any engine over 800hp. For the type of power you are talking about. You need an american made crankshaft-- period. Personally I would use an Oliver or Cola crankshaft for this application, but Howard and Callies also have some decent stuff for a little less money.
Hope this helps you out.

[pw_Tony]

All the cars I've worked on or helped build the motors we used Eagle cranks. And I finally understand that they do need to be ran over to the shop first for a once over! Took mine in my Satellite over to Beans in El Cajon.
Haven't used any Scats but I heard they're much closer to a finished product. Have done a lot of work with Scat rods though. The rods were right on the money, no honing required, well those were SBC sized rods.
One other beef I had was with Probe Pistons. My boss ordered $10,000 worth of pistons, with three different sized domes for y-blocks. After I began balancing a few sets I realized they were all over the charts. So I had to take ALL the pistons and unsort them and group them up by different weights, but then once they were in a similar weight category I micced the width, and then those were all over the charts! So waring on Probe pistons, but maybe it was just all 100 sets of those ones

[squirt]

Still haven't made my mind up yet but leaning towards Scat. I counted on bringing the crank and rods in for balancing and checking anyway I figured there was noway I was just going to assemble the stuff. Like always money is an issue and I'm not looking to cheap out but need the best bang for the buck. Just don't want to be pissing my $$$ away.

[sdpm]

I have been using Scat product for over 15 years. Have never had a problem due to product failure. Sure there is better but for the most part and the majority of the lake and river goers it is perfect. Great product for the money.
Have never used Eagle so I can't help you there.

[Ryan00TJ]

I used an Eagle 4340 crank in my SBC build this past winter. I sent it to Pittsburgh Cranks and had it checked and balanced. They said it went fine with no problems. For the price it's hard to beat. IMO If I were in your situation I would opt for a Lunati crank as they are nice pieces and not a whole lot of extra coin.

[RICHARD TILL]

i`ve been running a scat crank/rods and JE pistons for three years in my 496. it runs in the m/e class. got about 75 runs on it now without any problems. turns 6500 @wot.

[Cs19]

Scat.
I recently ran a mic over a brand new 4.250 scat crank, thing was dead nuts.. Im no engine builder but it was dead nuts from journal to journal, nice machine work.
Also had one in an 800 HP 496 with nitrous on it, never a problem and I ran that thing hard.

[WETTE VETTE]

I have run Eagle in my old 13:1 solid roller 496 and my current 10:1 solid roller 598 with zero issues. Both motors are 6500+ RPM engines. The cranks were purchased from a reputable shop that ckecked the machine work and did the balancing in house. I double checked clearances during assembly and can say I have no complaints.
Craig

[W.O.T]

Im running a scat crank in my 468. Its been worked on and balanced by dougans. Everythings good so far :)

[hotbo]

i have built 6 engines sbcs and bbc with all eagle cranks and rods to match.never once have i had any problems with the product.my machine balances and checks each one and they love them.:D i got a 388 with a scat crank and rods that sob has turned up to 8grand before and never ever flinced so imo they are close to the same just get them checked and balanced and you will be all set.:D
another thing stock rods and cranks in bbc are really tough take alot more hell than one imagine.think about it.:idea:

[bajarunner]

Still haven't made my mind up yet but leaning towards Scat. I counted on bringing the crank and rods in for balancing and checking anyway I figured there was noway I was just going to assemble the stuff. Like always money is an issue and I'm not looking to cheap out but need the best bang for the buck. Just don't want to be pissing my $$$ away.
Squirt, You really need to kick down the $ for a Lunati set up for what you are doing. However if you want a really good compromise for the dollar I have used three crankshafts from a place on eBay (I know don't flame me!) called raceparts. These crankshafts are from Hawks Racing and are made in China as are the Scat and Eagle cranks however the Hawks Racing crankshafts that I used had the sizing and finish quality of the Scat and the counterweight indexing of the Eagle. I would not recommend this to you if I felt this was an inferior crankshaft in fear of being blasted on these boards but really the three that I used where absolutely perfect and required very minimal balance work. All where for 496 bbc and one of them went into a jet boat. Check it out, for the dollar it is a good compromise IMHO. Maybe someone else can share there experience with these crankshafts on here.

[VDRIVERACING]

Everything needs to be massaged. Only thing I have learned is there is also a difference in the quality of the metals, Eagle being superior in that regard.

[squirt]

Pulled the trigger on the Scat stuff today, Thanks for your input!
Don

[Big Inch]

I heard that the Scat products coming out of China were recalled today due to the fact that they were found to contain lead ;) ;) ;)

[ck7684]

Some even had trace amounts of diethylene glycol...:)

[Boostedballs]

OK, I'm in the same boat here, get it? I'm building a BBC.
There's a lot of talk about cranks but very little about rods. Any thoughts about the H-bean and the I-beam difference? I seen some cheap H-beam Chinese rods on ebay http://cgi.ebay.com/ebaymotors/H-BEAM-RODS-BBC-454-BB-CHEVY-MOPAR-6-70-6-80-7-10-RP_W0QQitemZ260147369830QQcmdZViewItem?hash=item26 0147369830
also by the "raceparts" guys. Anyone ever run them?

[cfm]

I heard that the Scat products coming out of China were recalled today due to the fact that they were found to contain lead ;) ;) ;)
LMAOF. (not at the situation - just the remark)
Possibly have shredded cardboard too ? LOL.

[WETTE VETTE]

Actually I wouldn't be surprised if the alloy used in "Made In America" cranks actually came from overseas. I had a reputable builder who primarily uses Lunati or Crower tell me this. I don't believe him 100%, but wouldn't be surprised if the alloy did come from China. Hell, have any of you seen some of the antiquated steel producing plants we have here in the US? I sold material to the mills in the Gary IN area for 5 years and can tell you they are impressive in size, but very old!!! Not to mention a union mill in Gary that takes approximately 200 people to run only takes about 20 people to run for the same production in China and other developing nations because they are implementing newer technology. If you have the $$$ for a top shelf name brand crank by all means buy it!! If not get an off brand China deal from a good shop and make sure it is machined and balanced correctly. Likely for 2000 HP and 8000 RPM or less you will be OK. BTW the next motor I build will have a high dollar, top shelf American crank because I can afford one now, unlike 5 years ago when I built my engine. Not because it is necessarily better, but because I prefer supporting American stuff for what it is worth.
Craig