400 small block, 350 crank/rods, hypereutectic pistons 11.27:1 compression, double hump heads 3 angle valvejob, hand ported/polished by professional,lunati voodoo cam .504/.525 lift, int./exh 233/241, weiand xcelerater intake low riser,edelbrock thunder series 650 carb, flowtech headers/ypipe into 3 inch pipe with dynomax bullet muffler. I know this isn't the best combo but I have most of this stuff on hand and it will be cheap to build. I was wondering if this combo will make around 300 rwhp threw a 700r4. I know the heads have alot to do with hp so we'll just say they flow a little better than stock and they have new springs/rockers for the higher lift. I beleve the engine will be a 377 when i'm done and should wind up pretty quick. I also have the 400 crank if that would be better.. Any input is appricated and this will be my 1st engine build so please don't flame.

- Charlie

 

sure sounds like it could!

 

Unless you're running in a limited cube inch displacement class,,, you'd be crazy to leave 30 - 40 lb/ft of torque laying on the floor. Use the 400 crank. Heck, if you have the pistons already,,,, with what you're planning, the short 400 rods with a good set of rod bolts with the 400 crank and the pistons you have would be better than pulling teeth from the thing (destroking it). However, that'll pump the compression up using the same pistons,,, what CC are they? Pump gas criteria would be pushing it with the 377 if they give it 11.27:1

 

Yeah i wouldnt give up that long stroke.

 

I'm a fan of the 377 for it's intended purpose and that is the strip. It falls in the same vein as the 302 and the 327. Large bore verses stoke. It will easily make that much power and more but it will make it upstairs in the RPM range. It's not gonna ****** a car off the line at 2000 RPM like a 383. I would worry more about balancing it than how much horsepower it will make.
If this setup is going to run on the street and not going to leave the line at 5 grand, it will be a 350 with some more torque across the band if it is balanced. Balancing it is important because the larger pistons will need more counterweight than the pistons in a 350. The critics will say: just build it as a 406. Which would be fine but requires more money.
I haven't looked over the cam etc but if they let you spin it above 7 grand it will make as much power as a 383 but at a much higher (not streetable) RPM.
My

 

That is a lot of compression for iron heads. What kind of fuel are you going to run through it?