Flathead Overbore/Size Feedback

[GOSFAST]

Hi guys, looking for some feedback on preferred o'bore sizes on the '59's and the 8BA blocks.

The sort of "accepted" size has always been .125" over, we sell most kits at this bore size, but with decent blocks getting much scarcer now and me personally never really being all that comfortable going out close to the "max" from the "get-go" we decided to try to change the "norm" from now on.

We are considering somewhere in the neighborhood of .070", .080", or .090", this would allow some "wiggle" room on the next o'haul with the same block and would also make any blocks already at .060" more eligible to be saved still with a lesser size o'bore than the .125"??

We will still be keeping Ross' .125" overs for either the 4.000", 4.125" or the 4.250" strokes

Thanks, Gary in N.Y.

P.S. I do realize there are already larger than .060" o'size pistons available but we're talking "staying the course" with Ross forged pistons and only with the metric (moly) ring packs. Am at the stage of needing about 10 add'l sets of pistons from Ross as I type!