Deck height

krazykuda said

I didn't know that you had them machined flat already. I thought that they were used just taken off an engine and cleaned up (grease/carbon wise).


I would use the second one with the 60 cc chambers, as it was more consistent. The other one will still work on a daily driver, 1 cc won't make a noticeable difference.

I would do any porting first, just in case the seats may get accidentally knicked. It's best to do the porting before the valve job.

Then get the oversize valves installed.


Too bad you're not closer, I know a guy near Detroit that does good porting and valve jobs reasonably. (He gives good head - LOL!)...

Click to expand...

Only the one head ( with the eratic CC measurements ) was re-built/machined, just a few months ago.

The second head that I have measured is from truck #2 that I purchased just as a test-mule. Nothing has been done to it as far as I know.


Quote: I would do any porting first, just in case the seats may get accidentally knicked. It's best to do the porting before the valve job. .............

I had asked if installation of these oversized valves was going to require new larger valve seats, I did not get a response so far, asked maybe a week ago on slant.org.

I am concerned with this because much of the porting is done in the area directly underneath the valve seat, if these oversized valves require new larger valve seats than any material I remove now will not be enough after they install new valve seats.

I will make a phone call to someone and try and verify that I can use my existing valve seats.

Quote: I know a guy near Detroit that does good porting and valve jobs reasonably............

I am looking forward to doing the work myself, I enjoy the opportunity to learn something new.