cstraub

Mild,
For a goal of 550HP a 489 to 496 CID engine will work and still give you many hours of performance with minimal maintenance.

Stroker kits for your application range in price from $1100 for mild duty parts to $3600 for top shelf parts. A good middle of the road kit will run around $1600 for crank, rods, pistons, rings, and bearings.

The 990 heads will accomodate that kind of power with no problem. I would suggest changing over to Hyd roller cam and lifters which will give you many 100's of hours of service life.

10x

Thanks, yes it does run quite well. The engines are a fairly mild turn key 580 cu in. Hyd roller cam, Dart 360 heads, and alot of help from Dave Wesseldyk up at Wesco Racing engines in Mich. I built the engines, took them up to Daves shop, and while they were on the dyno, Dave gave them a once over, and found quite a few things that he recomended I change. I let Dave take the engines apart and make the changes he wanted to, and I'll tell ya what, if I did'nt, I would'nt of had too good of boating summer.

If I were you, I would really seriously think of at least talking to him about your situation. He's gonna tell you the truth if it's good or bad, and sometimes he kinda bursts your bubble, but the one thing he will not do, is give you an uneducated guess of what you need to do to achieve what you're looking for, or sell you a pile if crap that you really don't need. There's "too many" scammers out there that just want to get into your pockets for the most they can. He's not one of them.

Daves shop # 616-662-2250....... tell him you're another one of the "chicago" guys from Diversy. He'll take real good care of you, I'm sure. He already builds and maintains the boats for Austin's 47 Apache, Mike's 47 Fountain, Chads 41 Apache, Mike's 38 top gun that was bought by one of our club's board members (Jamie), Chi Town Hustler, big Rick's 2 46 Cig rough riders, one that's getting a pr. of 1200's in it, the one that we had in the harbor last summer, and another one that he just bought last month that's getting a pr of 1300's built for it. And of coarse, my boat should it need any "serious"
attention.
Good luck on whatever you decide, but remember it's going on the end of march, and there's not much time left to finish a big project befor summer.