Anyone know what a stock 964 head cc’s out to?
10-15-2020 | 05:22 PM
#4
Three Wheelin'
Joined: Nov 2007
Posts: 1,844
Likes: 334
From: Ossining, NY
The single plug heads are around 90cc nominally. The second plug mod adds a couple cc. I'd have thought a 964 head might be similar with the extra plug, but I haven't measured a 964 head myself.