" From: Mark Price <markprice242@xxxxxxxxxxxx> " " 4 barrel 327 runs about 9.7-1 in compression the jeep engine you have " is two barrel and drops down around 9-1, maybe 8.7-1. I think the two " barrel just uses a shorter piston height. I've never found the piston " heights to know for sure. i saw that somewhere myself, years ago; pistons were the only internal difference. it was in a trw book or some such iirc. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought _______________________________________________ AMC-List mailing list AMC-List@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list or go to http://www.amc-list.com