26 replies to this topic

[Art Anderson]

Thats why i ask. Now the question is what would be close enough in six cylinder engines to duplicate the integral head which had exhaust and intake on same side same as the standard six. What made them different was the intake was cast into the head with only the exhuast removable. Also had a different valve cover design as well.

I guess the question here very well could be:  Was the Chevy engine you have in mind an all new from the oil pan up engine, or was it just a newly engineered cylinder head with the integral intake manifold?

 

If the latter (and while not knowledgeable on that engine) is the case, then modifying the engine from the '63 Nova might be a good answer.   Again, I don't know the answer, never had the urge to go study that vintage of Chevy 6 to find out.

 

Art

[Longbox55]

The blocks are the same, only the parts from the head up were different.

[azers]

Thanks for the help. Now i need to figure out what to use to duplicate the head and valvecover and intake exhaust manifold.

[dh1908]

Here is another source:

http://my.inbox.com/...00xl/index.aspx

[charlie8575]

For reference, here's a good picture of the integral-head 250 head in bare cast iron.

 

Aside from the 2-bbl intake, it looks pretty much like one with the separate intake manifold from what I can see, although I guess, from reading the thread, that those had a real bad habit of cracking, which doesn't really surprise me, given the heat stresses and that big piece of iron sticking off the side unsupported.

 

http://67-72chevytru...015&postcount=8

 

Charlie Larkin

[Tom Geiger]

 

If you want to have people scratching their heads, put this one in your Nova!  I believe you can make this by slicing 2 cylinders off a six!

[azers]

Ah, i believe thats the venerable old 2.5 iron duke 4 cyl that gm used in their nova II'S and nova line. They are also a popular motor for marine applications.