I have a set of LS2 243 heads that have been ported by a local machine shop, The heads have patriot dual gold valve springs and are milled .020 The heads have about 500 miles and around 30 passes on them.
I do not have any flow numbers but they are on a LS1 GTO that made 397hp 373lbs through a vigilante 3200 converter and 3:91’s, fast 92 and a 228/232 cam on a mustang dyno the cars best et was a 11.20 @ 119,mph in November of 08 @ Englishtown, NJ
I will sell the cam & converter also, the cam has the same amount of time as the heads, the converter has less then 5k on it. This is a nice 11 second set up
I have close to $2k into the heads alone make me an offer
I will sell the heads/cam/converter for $1900 or best offer