V4 Port map

[thornl01]

Before everyone points me to the "9 pages" article, let me explain my question.
I am looking for a map , if such exists, w/ actual port timing in Degrees for a v4 OMC.

would prefer to be 77-79 140, or KR-15 ports.

I have the "9 pages" document & it has super information from Alan Stoker that I have used for many years.

Most of the V4 mod threads start w/ a 140 or 115 block that already have the bigger ports in them. I am starting w/ a 1984 90 hp block w/ VERY small ports.

On loopers that I have built in the past, I use a degree wheel mounted to a modified flywheel hub and place the ports @ locations in relation to TDC / BDC. This method seems to give me a more consistant port job.

Any input, comments suggestions are greatly appreciated.

LT
SC Mellonbelly Associate.

[thornl01]

Come on, Somebody say something !

[MTOLLEY]

BOO! lmao!