Valve installation
 

This engine block has just come back from the engineering works - are these valves inserted correctly, or do they need to be flush with the top of the block?

Re: Valve installation
 

Looks good.

Re: Valve installation
 

Mike V - do you think I can go ahead and start the build?

Re: Valve installation
 

Yes, I do. If you do a search for engine rebuilders, you will find photos of engine blocks that have valves that look just like the ones you have installed.

Re: Valve installation
 

Thanks Mike, much appreciated!

Re: Valve installation
 

When they are flush with the deck then someone has ground them way too much. Your's will give better flow than any that are flush (recessed).

Re: Valve installation
 

Tom and Mike are exacly right

Re: Valve installation
 

Mike and Tom are both right on. The valves sitting above the block gives a better air flow both in and out the cylinder. The block/valves were designed that way by Ford. The better air flow gives a better burn with each "fire". And thus better performance or in other words more HP.

As the engine over the 80 to 90 years wears, owners and engine builders grind the valves and seats to refresh the engine. Each grind whether valve heads or valve seats makes the head sit lower in the block, until it finally sits below the block surface.

I will try to post a picture of both senerios this afternoon. One with valves above and one with valves below the surface. ken

Re: Valve installation
 

You could remove a few if you like and check the face/seat contact area, just to make sure.