I trust these guys and its only 3K as describedabove but I have questions about the cam. He told me it was 115.5 deg seperation. is that right?

When you say crossover type your talking about exhaust?

and comp I think he said 8.5:1

115.5 separation doesn't make much sense. Does he mean a 115.5 center line? With that little compresion, it would need to be there to keep the reversion down.

You need the rest of the cam specs, but with that compresion, it doesn't sound like you are upgrading very much from a stock engine. 8.5:1 is a flat top piston.

3K is a deal if it is ready to go, 3K is not a deal if you have to pay to have it taken down and modified. You will have to know the exact specs of the cam to determine if your exhaust is compatible. What are you planning to use?

My pockets are allowing me to run stock exhaust. 3K is for the long block but I think they would change the cam if I needed them to. THe main guy was gone to the Barret jackson auction and will be back this week. I will talk to him and get all of the info

that is a pretty low compresion engine, so that may be why the lobe center is so high at 115.5. You might be able to run stock exhaust. There is the aluminum upgrade to the stock manifolds on ebay from time to time for a couple hundred bucks. It will pick up a little, and lighten the engine by a 100lbs or so.

Good luck.

what do you get for one of your engines?

Not much for one like that. I actually don't have one ready that is set up to run stock exhaust.

I probably couldn't put one together for less than what he is charging you and then there is the freight. If you can get a CMI set up, I'll sell you the red one that I posted earlier for 4K. Stock exhaust will not work though.

well thanks but Im not gonna spring for CMI headers. Best case would be somthing like Dana

What makes them different, the heads?

Different in performance, or price.

450hp out of a 454 is pretty easy to do these days...with the hydraulic roller cams and head variations these days....but yes, it starts with a good aftermarket better breathing manifold exhaust system. Stainless Marine would be my first choice.

For a few dollars more, and not CMI's you can get a really good tube style that will be well worth the extra couple hundred dollar investment.

Later when you decide to step up to a bigger boat, you can always find cheap complete take out engines to just put back in the hole and keep you nice stuff for the next project.

We've got one of the country's best offshore engine builder right here in Western MI
 

drpete, I see you're from the Gaylord area. Do you know of Josh/"Perfect Mix" (38' Powerquest) and his brother Zack (35' Fountain)???? They both are from and in the Traverse City area and have a family business up there.....anyway, Zack had his supercharged engines built by Dave at WESCO last year. Not sure if you have a machine shop/engine builder or not, but if you only live in Gaylord, then a good machine shop would be Dave at WESCO Racing Engines in Jenison, Michigan down here near Grand Rapids. Dave is an extremely tallented guy with building engines destined for marine offshore hi-perf use and very reasonable in his pricing. 95% of the engines he builds are for marine offshore. And he has an excellent reputation too. He can/will tell you what you can get away with and what you CANNOT get away with.

BTW, As far as I know Zack is very happy....he had nothing but grief and problems from some other well known engine builder in Wisconsin that previously built his engines and charged an outrageous amount for what was done....but you can ask him about it.

I also had my 565cid engines built by Dave. I have over 230 hours on my engine thus far and if you know anything about my boat is that it is always running and running well. I do most of my boating up north these days.

www.wescoracingengines.com (616) 662-2250

Stock exhaust from aftermarket exhaust as far as mounting?

Jeff1000 how many hp is the red one?

Thanks I will call them. Currently I am dead in the water and trying to save the marriage by not spending too much money these days. I would be happy with getting about 450 hp. ill bet I would gain close to 5 mph with that.

I have a place on a small lake in Grayling with a slip that I keep the boat in. Plan to make a trip over to torch this summer. also plan to watch thunder over boyne.

Should be close to 475-500HP.

Traditionally this boat went 74-75mph with an old styl HP 500 with a 24P B1 at 5300rpm's

I am running a 26pitch B1 at 4200 rpms with it before I upgraded it and was hitting 73.

I expect it to run faster with this engine and the correct prop, if I actually install the engine.

It requires an upgraded exhaust.

the Weso link doesnt work. I have been very busy at work and havnt had a chance to call. I hope to this week.

I put the boat on Lake Margareth two years ago for a day.