flat top pistons in a 383

I've decided to Put together a motor on the cheap until my budget catches up with what I want so I can get my project running ASAP.

I have a low milage 1967 block that I could just put back together and use but I was thinking of replacing the dished pistons with flat top pistons instead. I have an entire rotating assembly from a 1970 block with flat top pistons in good condition. Does any one know if I can use the flat top pistons with the early closed chamber heads without hitting the valves ?

I will be putting in a cam but nothing with a real high lift profile, and I'm open to suggestions. Keep in mind will be putting an EFI setup on this.

I Basically am looking to build a fairly strong motor mainly with the parts I have on hand to get me by for a couple years until my "serious" enginne is finished.

Standard bore, 0.030" piston deck height, 64 cc heads, 0.015" steel shim head gasket, Chevy flat-tops equals 10.9:1 static c.r.

This will put the squish at 0.045" and should allow you to operate on premium pump gas with a cam something like this. Call your favorite grinder for a recommendation.
http://www.cranecams.com/?show=brows...tType=camshaft

My flat top Pistons are Mopar, I'll check the piston/deck hieght to make sure the numbers are similar.

Do you know weather or not I will need valve reliefs using the stock heads?

Sorry, as soon as I see 383, I think Chevy. Please disregard my post.

Oops and it looks like I posted in the wrong section. This should be in the big block mopar section. I also added mopar to the title to prevent further confusion, could an admin or moderator move this to the proper section - thanks