Need help estimating my hp.

[SicMonte]

I am in the process of selling my motor and need to estimate the hp it has. Does anyone out there have the software or know-how on how to do this? Here is that I have:

350 bored 60 over (358??)
GM Vortec Heads (machined for higher lift cam, stock valves)
Edelbrock RPM Air Gap Intake
1" carb Spacer
Crane Gold Roller Rockers 1.55 ratio
Demon 650
Accel HEI w/ the MSD Super HEI Kit
Comp Cam:
comp cams xtreme energy 274h cam-
* Advertised duration: 274 intake/286 exhaust
* Duration at .050 in. cam lift: 230 intake/236 exhaust
* Gross valve lift: .487 in. intake/.490 in. exhaust
* Lobe separation: 110 degrees
* RPM range: 1,800 to 6,000
Speed Pro Flat Top Pistons
GM thin Head Gasket
GM "pink" rods
Steel Crank
Milodon Oil Pan w/ windage tray
Royal Purple Oil

Any help would be greatl appreciated!! Thanks.

[Lowend]

Probably in the high300 to low 400's

[yellow heap]

380-400 hp-more if it's real happy.

[oestek]

I have the software.. I can get to it later today. It will be interesting to see some guesses in the mean time and compare.

[Doug G]

Just an off guess.... 412H/422T @ the flywheel.

[1969CamaroRS]

My guess is about 380hp assuming 10:1, if 12.5:1 then about 415hp.

[SicMonte]

I have the software.. I can get to it later today. It will be interesting to see some guesses in the mean time and compare.

hehehehe...make it a contest!!!!!

[oestek]

What is your compression ratio?

[oestek]

And headers or manifolds?

[oestek]

Got a number, based on 10:1, small-tube headers, and no tuning...

378@5500, 410 ft lbs @4000.

[Fast01]

I also ran it through Desk Top Dyno and got 397hp @ 5500 and 437 ft.lb. @ 4000. This is based on 10:1 compression and small headers. Looks like we've got some pretty good power estimators on here! Oh yeah, it seems to drop off real fast after 5500 RPM.

[SicMonte]

I have full length headers if that helps you all out.

Thanks for the info though. I wonder why there was a difference in numbers...different software???

[Flash68]

Got a number, based on 10:1, small-tube headers, and no tuning...

378@5500, 410 ft lbs @4000.

This sounds about right. Definitely under 400hp. I'd say this output is right on.

Now get it on the dyno so we can see for realz! :D

[SicMonte]

So do you all think that this set up with a march pully system included, a 110amp alternator and a p/s pump is worth my asking price of $2000? Motor has about 7000 miles on it.

[mongoose]

i'd say thats a fair price.

should be around 375.. buddy has almost the same setup in his bu.

a good price for drop in and go with 375hp..

[MotownChevy427]

I have a world product 427 small block chevy, -20 Mahle pistons
4.125 bore 4. stroke .039 headgasket-64cc Victor Jr 23 no porting just out of the bock-Super Victor Jr with a 950 HP Holley-roller rockers comp 1.6 ratio and crane roller cam 240/248 duration 553/553 Lift. Thanks for any help in estimating-i still have this guy on the engine stand.........

[Flash68]

I have a world product 427 small block chevy, -20 Mahle pistons
4.125 bore 4. stroke .039 headgasket-64cc Victor Jr 23 no porting just out of the bock-Super Victor Jr with a 950 HP Holley-roller rockers comp 1.6 ratio and crane roller cam 240/248 duration 553/553 Lift. Thanks for any help in estimating-i still have this guy on the engine stand.........

Solid or hydraulic roller?

I am gonna guess 580hp and 560torque.

[MotownChevy427]

hydraulic roller

[Flash68]

That should make for a fun and nasty street motor!

[MotownChevy427]

Man that's one sick ride-just got done looking at the albun again..nice bodywork paint......welding---awesome! What shop did the work for your or is it you???