408 Build Thread

Those late 80s early 90s roller blocks are the best 360s made. I've sonic checked a few of them, and they are thicker than the earlier blocks by about .080 or so on avg. The castings are far better quality, and seem to be of better material (probably higher nickle content). The oil feed holes from the lifter gallery to the main line are upsized from the earlier blocks size. If you're using a hyd roller get some replacement lifters and reuse the factory lifter retaining setup. I think the lifter bores are taller than the earlier blocks so some machining or grinding will probably be required on aftermarket roller lifters with link bars ( link bar sitting on top of lifter bores before wheel is on the lobe).