CLASS RACER FORUM - View Single Post - Need Help With BBC 840 Casting Information

Jim Grande · 08-04-2010, 08:57 PM

Phil,
The 840 castings are rect. port heads with 2.19 int. and 1.72 exh. valves. They are closed chamber heads at 104.9 cc. Flow #s all depend on what you do with them as far as valve job and port work.

08-04-2010, 08:57 PM	#5
Jim Grande Junior Member Join Date: Mar 2004 Posts: 49 Likes: 23 Liked 18 Times in 9 Posts	Re: Need Help With BBC 840 Casting Information Phil, The 840 castings are rect. port heads with 2.19 int. and 1.72 exh. valves. They are closed chamber heads at 104.9 cc. Flow #s all depend on what you do with them as far as valve job and port work.