: I have been reading the posts on ring gap
: problems and wonder if the H1291 have the
: same problems as the KB's. Does anyone know
: what is the recomended ring gap for these, I
: did not get any paperwork with them.
: Thank
: Steve

: Since I can't get the KB268 in 0.5mm os, I may
: have to use the H1291 pistons. This piston
: has an off-set pin hole, and since a 2.2's
: valves are canted the wrong way (to a 6
: head layout), is it OK to reverse the piston
: so the valve notches match a 6 head? Mopar
: showed doing this in the V8's and GMC also
: has shown this trick on their engines.
:
: Also want to mill the piston tops on the
: H1291's to lower the comp ratio down to
: about 10:1. How thick is the piston top, and
: how close is the top ring to the top of the
: piston? The KB268's had very thin top lands
: but the H1291's appear to have the top ring
: well down on the piston. Expect to take off
: at least 0.100" or more. Also going to
: increase top ring gap to 0.030"
: minimum.
: Thanks
: Smith