Does anyone know where to find GM piston
info. I just pulled the 454 out & tore it down
and on top of the piston is stamped GM 399295
and under the piston is stamped 269-99. I've
checked the GM parts direct & performane
websites and searched with no help? There is
a INDMAR sticker on the left valve cover?
I haven't heard back from them. I'm trying to
get all the parts together to figure out the C/R
the easy way before doing all the rest of the
calculations. The heads are stamped 6272990
GM2T Hi-Perf and the block is ID 14015445 Hi-Perf 10.
Thanks in advance if anybody has any info........
