shorty plug for vortec heads?

[hesaw00]

1st of all, in my 1st post I would like to say that this is an awesome collection of knowledge. I just bought my 1st C10 a few weeks ago and this is the 1st old/v8 ride i've had in a long time. Thanks for all of the great knowledge.

I have been searching high and low for shorty spark plugs for my crate motor. It's the standard 350/330hp i see commonly advertised. Just searching for regular plugs for vortec heads is a challenge...lots of talk about .715 depth vs .708, etc. and even with seasoned moderators there seems to be no consensus.

With that said...
Does anyone make a shorty plug for vortec heads? I just put headers on the truck and regular plugs are super tight.