Old Race 340 Teardown

Hi Super Sleeper,
A very easy way to check if the block decks are angle milled is you can get a 18"x24"
wood working square. The stock decks are 90deg from each other. Lay the square
from one deck the other. It will lay flat on each deck surface. A quick check that will
show if you need to measure farther. The 18deg valve angle is set in the head milling.
I think the chevy guy's got there angle milling idea from mopar as there small blocks
are 15deg, or as I like to tease them with. A question as I don't remember, are the
lifter banks in the X block 48deg or stock? I think others here are spot on with the
major deck milling, the square will tell you if any angle is there also.

Serious awsome post.
Thank You for it,
Rick
Angle milling is done to the heads not the block.