I don't want to cloud the issue here but,Although both the inline's and the V8s engine mount bolt holes (on the engine)may position the mount the same be it an 8 or 6, there can still be a difference. I don't know about a C-10 pickup for sure but on a 68 to mid 70's Nova the "frame bracket" that the engine mounts bolt to are different. What I mean is , the piece that bolts to the frame crossmember for a 6 cylinder is NOT the same as the one that bolts to the crossmember for the 8.Whether or not this is the case with a C-10 pickup I don't know for certain but its worth checking to be sure.Having the wrong piece for the crossmember will definately change where your engine sits in relation to the rad and bell housing .
