I have a 1972 413 truck eng. out of a Winabego. My question is .....will car heads fit on this block? I want to put this in a B/Body car. and I already have headers for them. Or does anyone know where I can get headers for it? Car heads have 6 bolt holes in line for exhaust, these heads have 2 angled holes on each end and 3 holes in the middle. I think that this engine has alot of torque and horsepower the way it is. Please help me figure this out!!!!!!

If it is the truck/industria; it will need a water pump & housing change, standard B/RB heads will bolt on along with a decent RB intake. pistons will be ultra low compression too.

Yes any Mopar big block head will fit on that 413 block,906,915,516 ect.Dump the heads that came on it.413 swaps parts with RB blocks,cams,timing chain,water pump ect....LD intakes manifolds will not fit RB 440's ect..

Check out this link,hope this helps.
https://board.moparts.org/ubbthreads/show...page=0&vc=1

You might want to open the front of that engine up if you haven't all ready. My dad has one of the industrial 413s, and it has a reverse rotation gear driven cam. I would think you'd want to swap that stuff out for normal pass car items. Also, his has an oddball crank flange too, though this might not be an issue on yours since it came from a vehicular application.
Travis..

I have one lying around, your will find that the compression ratio is in the 7:1 range... As stated the std bb heads will work, as will the intake, mine had a std 4bbl intake with it. The crank is forged, and may or may not be an 8bolt... mine is 6bolt.

On a side note the reverse rotation motors were marine application, for twins one counter rotates, as I understand. Regardless it's not an issue as all that stuff will be changed for passenger car use anyway.

Here's what I've found needed so far:
heads
oil pan and pickup
water pump and housing
acc brackets
motor mounts
Dampner and pullies (you MIGHT find a water pump pulley that COULD be shimmed to work, the stock dampner is THICK)

Thanks to all!!! I think with a good cam and timing chain and a few other goodies this will run real good. (Blower??) Thanks again