As alway's, I welcome your comments..
I posted too soon b/c I went back and looked the ebay post over again and the heads are marked with the familiar rect. with a big triangle on the top of it in the middle like the Power-Pack heads have..
I figure they are the very first Power-Pack heads but may be off here. If so they should have right at 137 or so cc intake ports..
I like the small combustion chambers b/c they help the little-bitty motors make good compression, but I had no idea they were that small, (55.6 cc's)...
I've got a set of -601's coming to me shortly so am starting to put together my 283.. I figure a set of 1.60" exhaust valves will do them nicely and I will just leave the 1.84" intakes alone except for some bowl work and dingle-berry casting flash removal.
Next step is picking up a little-bitty solid cam b/c they are hard to find at a reasonable price, imho...
Wish SSI or Elgin made a generic, modern -097 solid type cam... Or even smaller!!
Harold, Isky, CC and Erson are in the running, thanks to several of the guy's telling me about them as is the cam David Pozzi mentioned a long time ago..
I also wonder if I can find a set of 1.5" four tube, long headers for the little motor???
My 406SB has a 2101 Performer and 750 Q-Jet on it, plus I have an old cast-iron, 300hp/327 AFB intake and an adapter for an 1850, 600cfm Holley I have laying around on the shelf..
It's heavy, but the old AFB intake is a winner for a stock four barrel intake, imho...