750 Crankcase Deck Height?

Try as I might I have not been able to find any published dimension for the factory height of the crankcase deck where the cylinders mate up.

In other words how would one determine, by measurements, if a set of crankcase halves had been previously machined, altering the height of the deck?

Thought I may have found a good source in a post on October 14 2025 in this thread below. But I cannot pin down the deck height in what looks to be a factory blueprint.

I recollect someone asking the very same question a while back. Was it you?

Why don't you have your cases measured by CMM? One pivotal question is, how di you set a plane of reference?

- Knut

mdt-son said:

I recollect someone asking the very same question a while back. Was it you?

Why don't you have your cases measured by CMM? One pivotal question is, how di you set a plane of reference?

- Knut

Click to expand...

Nope, Not me, or at least I don't remember doing so !!

The fellow in the referenced thread used references of the camshaft and crankshaft centers. But he wasn't looking for deck height. Though he was preparing to skim the deck.

The drawing someone there sent to him gave him what he needed.

If you were to assemble it, wouldn't the deck height of the pistons in the barrels give you a good idea?

Dedubyah said:

If you were to assemble it, wouldn't the deck height of the pistons in the barrels give you a good idea?

Click to expand...

Perhaps it would, if you can be absolutely certain nobody had machined/altered the barrels.