Posted by Fastman (209.179.226.248) on May 03, 2001 at 19:29:25:
In Reply to: Head casting decode... posted by Brian on May 03, 2001 at 14:42:23:
:
: There are a set of heads I'm looking at, with a casting number of 4L1E on them. I lost my Hot Rod mag that tells hows to decode them. Could one of you knowledgable gentlemen give me a hand here?
: They've been on a shelf for a while, seem to have stock size valves and a tiny combustion chamber (not heart shaped like the later models are). The 'hump' in the exhaust port looks big enough to put it in the mid '70's (damn thing is huge...).
: Thanks, Brian.
The casting number you posted is a date code casting number. Look on the head under the intake ports.