Bolt holes 1 and 2 are centered between bores 3 and 4 so the cylinders are equally distanced from there. Cylinders 3 and 4 are each 2.094” from the centerline of the bolts so this places cylinder 1 at 10.656” on the X axis from head bolt 1.

Doesn’t the torque plate need to have a bore that’s larger than the cylinder to let the bar pass thru? I was thinking of using Hardox wear plate as our cutting table frequently makes chunks of scrap that cost me next to nothing and that stuff is super tough. Luckily I have an engineering department to advise me on material and thickness to be sure.


I checked the head gasket I have (which was stamped GM Canada) against measurements on the head but a few places on the gasket have a large triangular hole at the bolt location preventing a positional measurement.


1952 Chev 1300 Cdn. ½ ton