Quote:
Originally Posted by Rocky Rotella
Is it absolutely certain that original R/A IV intake valves are two piece? The head received an aluminized coasting but the entire valve should be 8440 alloy.
Exhaust was definitely two piece.
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I'm almost certain they are 2 piece. From a manufacturing standpoint, it is far easier, and cheaper to make 2 piece valves. 1 piece valves take special tooling dies and process to forge. 2 piece are much easier to make a head, then weld it to a stem. 2 piece valves always have a slight bulge at the base of the stem where it is welded together. If the head appears cast on the back side, instead of machined, it is a 2 piece valve.
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