I'm looking for some feedback from guys who have actually built a motor using someone's kit.Who makes a good kit and how much extra did it cost (if anything)to get it working(balancing clearancing whatever)..
I just "build" my own "kit" by getting parts individually over a period of time. I'll pick up a crank on clearance, rods at an auction, pistons are usually new....stuff like that. Then I'll balance it & assemble it.
But, for what the kits cost these days, it's hard to beat those prices. I saw a 408 kit on Ebay a while back for around $700 new and already balanced, IIRC. I usually pay that much for pistons & rings alone...but those ebay kits were cast crank/hyper or cast pistons where mine are all forged.
Kits can be bought on ebay, AD performance (great prices), CNC motorsports (great prices there too...) or your favorite machine shop can do about whatever you want.
The reason I just build my own stuff is twofold. One, I haven't found a "kit" that is what I want at the price I can afford. Two, I like it built MY way; not how someone else wants it. If I want a cast crank and 15:1 compression, I do it that way and pray that it lasts more than 5 passes. Most of the time I can't find what I want already put together in a "kit" anyway. I guess I am just different.
I pieced mine together off of ebay. I bought a Scat crank, Scat rods and heads from different suppliers who had good feedback. I then dialed Probe for the pistons. Everything else but the intake (again, ebay) was sourced through Summit.
My Scat/Probe assembly balanced easy and had no problems. My Machinist says he never has any problem with Scat stuff.
Had I to do it all over again, I would have went 408 and gotten it from Brian at www.adperformance.com (see a trend?) For just about the same price as I paid individually for my kit, plus shipping, I would have been much further ahead using one of his assemblies which includes bearings and possibly rings. At the time, I believe that delivery was free, but don't quote me on that.
I'll say as so many other have. BRIAN at AD performance. got my scat crank,scat h beams, probe pistons. machine shop had no problems with the balance. Same shop did my buddies eagle crank and couln't beleave how much nicer the scat was.
Just to add to this post. We ordered our Trick Flow heads quite some time ago from Brian at AD Performance and had then shipped up here to Canada. Brian was very accomodating and true to his word. A very smooth transaction and I'd certainly recommend him to anyone.