Whats up with this?

[zmannz]

I see this set of springs:

http://cgi.ebay.com/ebaymotors...86286&

and then another set that seem similar:

http://cgi.ebay.com/ebaymotors...74005&

Any difference? Should I be looking for a certain spring height when I do buy a set for my head?

Also, just wondering if I am really gonna be more reliable with an aftermarket vs. an oem head gasket if they are both the same thickness? I was looking at getting a cometic or oem. Gonna be looking at about 9:1 comp with a 1.2 mm hg (oem size) and I will have a t28 pumping how much ever it can, shooting for 300 hp at the crank. I don't really want to go thinner or much thicker with the head gasket, I like the idea of 9:1, seems like it might get a tiny bit more bottom end without the butterfly valves.

[themadscientist]

stock will handle 300 HP worth of rotation, upgrade not needed.