I was just wondering if anyone knows how much power you can get out of a built NA 347 engine. Any kind of guess or anyone who has this kind of engine that knows. Thanks for the help.

 

I've seen guys on the forum post that they've made at or near 400rwhp. I hope to get close to that with the combo I am building. If not, I'll change somethings in the future. But I'll enjoy my combo for a while 1st.

 

I know I plan on building a lower comression (8.5:1) 347 to make it boost friendly. Hopefully with it just being N/A I squeek out at least 325hp. I know obsolete here on the boards has a 331 built with 8.5:1 that makes what 311 N/A hp?

 

to keep the compression low depends on what kind of heads you use and some other aspects as well, correct? Im new to this so im just trying to learn. Thanks

 

The compression ratio depends on both the combustion chamber size of the heads and also the type of pistons used. "Milling" the heads reduces the combustion chamber size and increases compression, as does using different types of pistons (flat, domed, dishe etc.)

 

ford has a 347 that makes 450hp with alum heads and a nice cam

 

if you could post a link to that site, that would be sweet. thanks