Originally posted by crxrocks
You are probably refering to the d15b2 right? The DX engine? You would have to swap out the pistons as well. The DX pistons only have reliefs for 2 valves and the pistons would need to have another 2 reliefs for the extra two valves. You might as well swap in a full d16a6 at that point.
Chris
The B2 has 16 valves. However maybe the B1 only had 8.