Lycoming engine nomenclature

Can some give me a clue as to what the letters/numbers after the 320/360 mean for Lycoming engines ?

There are some old threads leading to a site that is no longer in use which apparently explained the nomenclature. Is there a new site ? I have a handle on the prefixes like I= injected, O= opposed, T=turbo.

Thanks,

Darren

Lycoming SSP 108

Darren,
See my post from yesterday on the thread below. I updated the info regarding this issue. See the last post in the thread.

http://www.vansairforce.com/community/showthread.php?t=34017

Charlie Kuss

Type Certificate Data Sheet (TCDS)

Here's the index:

http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/MainFrame?OpenFrameSet

Then if you click Current Models, By Make, and L for Lycoming, the TCDS list index is displayed e.g.

http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/b89dcc409583b98886256e4e00744f51/$FILE/E-286.pdf

for the O-360-A1A