Thread: EAGLE vs. SCAT

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Any significant difference between these two??? One guy in town (possibly dummy) told me that SCAT is a knock off of EAGLE, I told him he was full of it...opinions???

btw, let's compare their forged line...4340 cranks, 4340 rods

ive heard the same thing. i dont know if its true. ive never used scat...yet. my last 347 was all eagle and it went together, balanced and ran great. ive heard the same from scat. in fact i said "yet" because i may be trying some of their stuff in my flathead build. time will tell.

bob

So you got it out of the box and assembled it in your block and started it up no problems?

I don't care who's parts I use, they get checked, measured, rechecked, eyeballed, some more measuring, clearanced, and checked a couple more times..... I've seen some of these off shore built engine pieces that should never have made it through anything even resembling quality control......... Once it's put together and breaks, it's too late to do anything about it. Definitely worth the extra effort and time to check each and every piece over carefully!!!!!

Originally Posted by turbo74pinto

ive heard the same thing. i dont know if its true. ive never used scat...yet. my last 347 was all eagle and it went together, balanced and ran great. ive heard the same from scat. in fact i said "yet" because i may be trying some of their stuff in my flathead build. time will tell.

bob

i used more Scat then Eagle maybe 50 to one on rods and same on cranks and PBM .Cats. Ohios .Rpm. Elgin others i have used as well. the forged cranks are all about the same forgings .there some are better on size and a better oiling lay out on the crank strait shot vs cross drilling .i not going to get in to this much other then to say how much work to get the crank in balance at times . some on the list are rebox cranks . i use more of the compstar line now its a 8 plate crank.i still use the scats/pbm stuff

stirfry89, no, i still inspected, measured, and balanced. just as dave said. everything was very nice. if i remember correct, the balance was pretty much dead on according to my machinest.

bob

With Eagle and SCAT, there is little difference. Both have quality parts. I have heard on other forums that CAT stuff does not have as good a finish as Eagle or SCAT, although I have no direct experience. My engine was built with an Eagle rotating assembly because that is what my machine shop sold. I have also heard very good things about the quality of Compstar products. Eagle and SCAT parts are cast/forged in China and shipped to the US where they are machined and finished. CAT is also a a foreign made product (China, I think) but I don't know where they are machined and finished.

Originally Posted by rumrumm

With Eagle and SCAT, there is little difference. Both have quality parts. I have heard on other forums that CAT stuff does not have as good a finish as Eagle or SCAT, although I have no direct experience. My engine was built with an Eagle rotating assembly because that is what my machine shop sold. I have also heard very good things about the quality of Compstar products.

well its made for and finsh by callies so it good.. as for the finsh i seen Cats that hold size and finsh better then some other and used many of the scats there size and rod weigth is better then alot and with cranks as well . eagle had some bad SBC cranks get out with a smaller then size snout get out. i look in to this alot of were they come frome forging numbers .i have cars that run low times at the track as well as truck puller .i used alot of the H beam rods and cranks from all brands out there so use what you want i know what fits the best and holds up the best so far

I have used probably 25-30 of Scats kits and the same number of Eagle kits (and/or perts) and have always found the Scat machine work to be higher quality. I ran into some Eagle cranks that had as much as a .0005 taper on the rod journals. Just bad machine work, in that case polishing.

I prefer the Scat stuff for low cost and quality.

Ive had a scat crank and there Hbeam rods in my 521 ford(jetboat) for 2yrs now, has been great so far.

We use Callies and Callies Compstar mostly except they are just getting into Ford stuff. Have forged Compstar stuff on our selves and order in the Scat in both forged and cast for Chev and Ford. Sizing hasn't been the most consistant on Eagle but they have some that aren't available elsewhere---We get the Scat stuff in pallet containers of 15 cranks and sets of rods for best deal on inbound freight.

I've been on a tour of the SCAT facility and they make many different kinds of cranks from what I could tell. Every thing from carving one out of a huge billet of steel, to machine "semi done" raw forged cranks, to what I think we are talking about here, which is "repackaged" off shore cranks which are built to their spec's. It always comes down to price, and what we are willing to pay.

We run 86mm SCAT "flanged cranks" in our VW drag motors and have never had a "crank caused" engine failure.

Very happy with SCAT cranks, not so happy with their flat tappet lifter pitting.

I haven't fired up my 331 stroker kit from Scat yet, but was impressed with the overall quality of it. I chose Scat over Eagle mainly because our first experience with them was a 1915 stroker kit in my Son Dan's VW years ago. I also felt I got good solid help on the phone from Scat when I called to ask some questions prior to buying the kit. More and more I judge a company on that gut feeling you get when you call them for any reason, and I liked the way they took time to explain some options and to dispel some myths I had heard.

I guess time will tell if I made a good choice, but the engine went together easier than any I have done before.

Don

Hi People,
Some years some very cheap "SCAT" cranks were for sale and looked the real
deal. One thing was wrong. You could not bolt a flex plate /flywheel onto the
crank because the bolt pattern was R/S..T.
What you see isn't what you are supposed to get???...Until later..Skyeking

Originally Posted by skyeking

Hi People,
Some years some very cheap "SCAT" cranks were for sale and looked the real
deal. One thing was wrong. You could not bolt a flex plate /flywheel onto the
crank because the bolt pattern was R/S..T.
What you see isn't what you are supposed to get???...Until later..Skyeking

that maybe true? but i ways pickup cranks from brian at scat 4 or more at a time just got to a point were i could not move them .so i buy them one at a time for the job from Pbm or others that sell cranks like Clayton Racing i always built the kits and balanced it my self .out of many cranks i sent back one crank and one H beam rod.