Quote:

---

Quote:

---

I measuring the main bearing bores of my 340 block with my dial bore gauge and I got 2.6925". According to my service manual diameter for a 340 is suppose to be 2.4995-2.5005" and for a 360 its 2.8095-2.8105". Is the manual talking about the diameter of the journals on the block or the crank? Diameter of my cranks main journals is 2.4780", there is also a .020 stamped onto the bearing. If I take the spec of lets say 2.5000" minus 2.4780" of the crank I get 0.022".
So this makes me think that the manual is giving the spec size of the main journals of the crank. But then there is no spec of what the diameter of the block and main caps are suppose to be.

---

the main housing bore size is 2.6925-2.6930
the std. shaft diameter is 2.2995-2.5005
the block doesn't have journals, it has housing bores. the crankshaft has journals.

---