64 oil pan & timing cover bolt head markings

[Jaime M.]

Hi Everyone,
What are the bolt head markings used on the oil pan and timing cover of a 64 327? I have several head marking L, E, EL, RBW, B&H and R.
Jaime

[Joe L.]

Re: 64 oil pan & timing cover bolt head markings

Hi Everyone,
What are the bolt head markings used on the oil pan and timing cover of a 64 327? I have several head marking L, E, EL, RBW, B&H and R.
Jaime

Jaime------

The 1/4-20 bolts are often the "L", "E", or "EL". I've seen "RBW" and "B&H" on the corner 5/16-18 bolts and those markings may also have been used on the 1/4-20 bolts. The corner bolt head markings are usually not the same as the rest of the bolts.

The above basically applies to all C2 and C3 small blocks.