A friend gave me a used HEI distributor he said was from a GM L6. (I have a non-hei 250 c. 1973.) The HEI is the non-integrated coil type. Is it possible to convert it the coil-in-cap type (just buy the right cap & coil?)? It would make the installation much cleaner.

The HEI looks quite a bit fatter than my current dist. Will it really fit, or is this the wrong part?

Anything else I should know before attempting the swap?

Thanks,
Joe