How much horsepower

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I

IL duster

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How much horsepower do you think I'm making with the combo below?

360 bored .060 over=371 cubes
The block was bored and honed with a torque plate, align honed, and square decked.
stock crank
eagle sir rods, entire bottom end balanced
diamond forged pistons that I special ordered built to give 10.5 compression with the edelbrock aluminum heads.
high volume oil pump
milodon windage tray
moroso 8 quart oil pan
double roller timing chain with tensioner
bhj dampner
hughes engines hyrdraulic cam specs are lift=.606int, .614exh; duration @ .050= 246 int, 250 exhaust, with a lobe separation of 108.
custom pushrods, and hughes engines lifters
edelbrock aluminum heads 2.02int,1.60 exhaust, hughes engines ported the heads to their stage one or prepped status, five angle valve job, double valve springs from hughes to handle the lift of the cam.
1.6 roller rockers(the lift of the above cam already corrected for these rockers)
edelbrock performer rpm intake port matched to heads
edelbrock 750 carb
FBO systems igntion module and coil
MSD igntion wires
FBO distributor no vacuum advance

If I have forgotten something please left me know. Just looking to get a approximation of the what this thig should make, also what the intial timing should be would also be helpful.

Dan
 
You should have it dyno tuned, since you've obviously invested some time and money. Timing and jetting can make a big difference on a motor that is as prepped as yours.
 
i think you'll make more power then those eagle sir rods will be able to handle,
Just from hearsay tho... and a few pix of those rods breaking right in the middle in a 450 horse motor...

not trying to discourage you, thats one healthy motor you built!!
 
now you got me scared! would also like to know what that came out of, or if it is just someone trying to sell parts. Well, if my 360, which is built very similar to Il dusters breaks the eagle SIR rod I am sunk. Already got way too much in this motor, expensive rods would have broke the bank. If that rod broke with the engine at 7500 or so, it is almost understandable. Anything can be broken.
 
I have them in my 360 that's making around 370HP. They came highly recomended as an upgrade to stock rods by the race engine shop that did the machining on my block. They use them a lot in 400-500 HP builds. Eagle rates them for up to 500HP in a small block application.

The only thing I can say as fact, is they were all dead nuts consistent on weight, balance and dimensions, come with ARP cap screws and make stock rods look like something some made with a chisel. Eagle is a first rate outfit so if you stay within the design limits of the rod they are a good choice. Plus they are bushed for floating pins.
 
Well the rods are already in the block, and the engine is in the car and broke in. So we'll see. I don't plan to race it and the car will never see the track. Its been down and apart for too many years as it is, so a nice cruiser with some performance is all I'm after. When I was putting the engine together I was going to race it, so that is why the engine got how it is. Time will tell, hopefully I will be ok. If not...well I always wanted a stroker. Anybody have any idea about the horsepower it will produce? What should the timing be? It seems to like 12 degrees intial, just wanting to see if I am in the ballpark. Thanks again!

Dan
 
Dan, I built mine very similar except I have 12:1 KB hyper pistons and a solid flat tappet Comp with 244I, 252E and 540 lift. I used an air gap manifold and a Promax 750 carb with 1-5/8 headers. No dyno, haven't even broke it in yet but I was shooting for 450 HP. Maybe at the altitude I am at it will be more like 410, but my car is light so I am shooting for 12's. Total timing in mine is at 34 and I will start at 6 before and advance from there. Good luck with it!
 
like I said not to discourage - just wanted to inform....
 
That's a big stick, with the aluminum and 10.5:1. I'd have built it with at least 11.5:1 (yes, pump gas). But, I'd make a guess of 500ish at around 6400, with 480tq around 5200. IMO, the rods are not enough (I'm a firm beleiver in anything but SIR), but I tend to overbuild. I also think the cam is too large, but if this not a street car, meaning no need for idle quality or low speed running, low stall convertor, or mild gearing, it should pull real strong for a 360.
 
Is that enough intake? performer rpm? seems like a torker II with a good double pumper would be better!
 
I think it's enough. It looks to me like they chose a cam a 408 would like, and an intake to help keep the vaccum up, and didnt add enough compression. With a better single plane and another point compression, I'd think those numbers would be much better in terms of peaks and rpm range.
 
Well the reason I went with lower compression was to live with the SIR rods. I knew they had a limit of 500 horsepower. At the time I made the rod selection I did not know how much trouble people have had with them, if I would have known that I would have bought the h beams, but live and learn. I have no money left to tear it back apart and buy the h beams and have it all re-balanced. So again we'll see. It is a street car, that will probably never see the strip. I just wanted awesome performance out of it. And when I was buying all this stuff years ago, I had wanted to drag race it. But times have changed and I don't have the money to replace things if I break them and I know I would break stuff if I drag race it. Actually the cam is much more streetable then the mopar performance cam I orginally had in the car. It can idle down to 750rpm's with the A/C on and it does great, it takes gas awesome and runs great. I still have some tuning left to do though, it is definately rich, I need to lean it out some. Thanks for the help, you confirmed what I thought it would do, and what it was built for.

Dan
 
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