142 guy
Member
- Joined
- May 31, 2014
- Location
- Saskatchewan, Canada
Isn't it a good idea to raise the floor a bit as well? I believe I recall seeing that somewhere over the years of reading forums and such.
The wizards agree with you; but, raising the floor is a lot more work as it involves filling the port floor with weld and then reshaping. I have seen photos where people have had steel tongues fabricated, welded to the exhaust flange and then inserted into the port to try and accomplish the same thing. I think member Canuck has posted pictures of ports where he has filled the floor for flow testing purposes. Phil Singher had also posted photos of B18 / B20s with filled ports (years ago and that may have been on the Sweedespeed forum).
Of course there was an over the top Swede who completely filled in the ports with weld and then machined in new ports where the central axis came in closer to a 45 deg angle relative to the valve stem. Obviously would have required custom manifolds; but, they didn't have photos of a completed engine, just the head with modified ports. I often wondered what they did with the water jackets and whether the head actually worked, or was just somebodies mantel piece.