Head gasket question?

[Hillz]

I recently purchased a 05 F250 with a 6.0. This is my first diesel and I am loving it! I do tons of reading and made some basic mods trying to get to a decent reliable DD.
The time has come for head gaskets (compression in the coolant bottle). I am confused with the head gasket options. Stock, Black Onyx, Victor H., RCD, Ect.. Which one is the best overall? Who has the very best price? So far I have found that Browns has the best price on the ARP`s. I also am a little confused over the dowel size. I have read until my eyes have fallen out and still cannot find a definite answer.
My truck has 145K miles, SCT, EGR delete, Cat back (soon to be turbo back) Magnaflow duals, coolant filter, pillar gauges, and a few other minor upgrades. I am very happy with the power and am planning on snow plowing so other than head gaskets and studs I am done (for now). Any help would be appreciated............Hillz

[coolman3030]

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[travisH3]

6.0 built from 2003 to 1/10/06 use 18mm dowel. any truck built after 1/10/06 use 20mm dowel size.
i seen cobbs diesel perf has arp head studs and black onyx head gaskets for the 6.0 as a package for 575 shipped.

[PGreenSVT]

The Victor Reinz head gaskets are the same thing as the Black Onyx gaskets and you can get them much cheaper. That's the way I'd go on that.

[Hillz]

Thanx for the replies!
travisH3- Good information. That means that my 05 has the 18mm dowels. That seems like a good price for the head gaskets and studs. I will give them a call.
PGreenSVT- More good information. I kinda thought that was the case. I wonder if the RCD gaskets are different? I see black head gaskets on E-bay for a good price, but they do not list the manufacturer.

I have been pricing machine shop work. Man, all this stuff sure does add up fast! Everyone told me owning a diesel was going to be costly! Thanx again for the replies..........Hillz