BBC what do you guy thank it will make
 

Its a 461 13.8to1 scat rods and crank srp pistons Gm 990s ported 2.30 in take 1.88 ex comp cam .714 in .680 ex 278 in 282 ex at 50 intake is a ported super vic 1050 domanator on e85 2in into 31/2 headers what do you guys thank

i would guess somewhere in the area 750 to 800ish

I agree with ''Vega'' somewhere in the 750 range :!: How ever we do have a expert on here that can pin point it to the horsepower :!: :!: :lol:






Mark

thank you guys we will see in a week or so what it makes just like to know how close it is to what i was looking for i was hopeing for 750 or so any ideas on foot pounds it will put down ?

i would say 550-600hp

Re: BBC what do you guy thank it will make
 

715-730 And call it a Day!
Later
G 8)

I think about 700 if that, because i think the 990 heads are going to hurt you.

JMO

Zip.

motor
 

That's a lot of intake valve for a 461,may work with the e85.

agree on the 990 heads hurting your numbers. what piston are you using to get 13 to one compression? head gasket?

My prediction will be 650 to 700 hp.

TS1955

I say 673hp

If you will, post the results. i used almost that same combo to tune my chassis, i used a set of 820 ovals with a back yard port job and 2.25 -188 valves, no idea on the number of ponies, but the thing ran dang good.

guess
 

compression helps, but the heads will hurt this combo 689 HP to 700 and 600 to 625 foot lbs
Let us know good luck , it should be a good stout durable motor

Re: BBC what do you guy thank it will make
 

720 peak hp and 675 avg :D

not sure what head i should have used the motor is in a mud drag truck and they have a stock head casting number rule and it has to be a steel head from what i have read the gm squair port heads were the best. i didnt have them flowed but i did cc the and the intake ports are right at 345 let me know what you thank i can do to get alittle bit more out of her im wanting 750

I'm looking at my dyno sheet from my old 548. It made 793 at 6,700. It was similar to your build, but I did have a set of aluminum heads c&c 'd by RFD. They flowed 400cfm at .800 and I did have a vacuum pump.
I doubt with those heads you're gonna get into the 700's, but I'm not fimilar with them. Even though you have to run iron heads can you run a vacuum pump and a dry sump? Not cheap hp, but you gotta do what you gotta do to win!

no vac pump and must have a wet sump

That head may get you close, one of my worries would be the big valve size, 4.280 bore may be a little small for that size valve.

I think you will be around 670-680 hp and 570-590 tq, but I think the ported Super Vic is going to hurt you. Thats a big intake for your cu in. A Victor Jr. would be a better choice...IMO.