Police Interceptor Heads?

No you didn't. The Little Red trucks never came with W2s. Never. They were rumored that they were going to get them, but they never did.
Exactly!

The engineers were using the dyno with a 360 engine for the Little Red Express truck engine and wondered, then asked about using and testing the W2 head, where they were plainly told a resounding “No! Don’t even think about it, don’t touch them!” Where they then ignored that statement and tested a pair over a short period. Then the word got out and the rest became history and every Tom Dick and Harry has a LRE truck with W2’s as stock equipment which is a major line of bullshit and/or a outright LIE!!