Re: ZIS 110

Posted by PackardV8 On 2008/11/30 22:24:41

Just for fun let's consider the possibility of using the 3/8" longer Zis head on a Packard block or visa-versa.

Ther eare 9 head stud holes. IIRC the Packard head is 38" long??? and the Zis head 3/8 inch longer???

So, 38"/9 holes = 4.222 inch spacing.
38.375/ 9 holes = 4.264 inch spacing.

A difference of .042 inch spaceing of the stud holes.
That's lesss than 3/64 inch.

So is it inconceiveable that the stud holes could be elongated such a small amount to allow interchangeability???

I'm sure any one with a drill motor and a set of drill bits or a dremmel tool could do it.

The other stud holes are even more numerous REDUCING the amount of elongation needed.

There is a catch, depending on how close the head gasket sealing bead is to the hole.

FURTHERMORE: THAT small of an amount of spacing difference certainly gives rise to the question of Zis haveing modified Packard casting moulds. But, that would be a question for a foundry expert.