What should the heads be on a 318?
What should the heads be on a 318? The stock 318 heads should be about 60cc. The 360 heads are in the 70-72cc range. This works out to a compression drop from from 8.5-1 to about 7.2-1. Severe planing of the heads to compensate for the larger combustion chamber is not usually a good idea as this further amplifies problems with the port mis-match. Can you use 360 heads on a 340? From what the old DC Race Manual mentioned, before 360s came out, but 340s had the 2.02 intakes, you could use the 340 heads IF you clearanced the...