Bronze valve seats?

[madkaw]

I just love these threads that you get "the rest of the story " towards the end of the thread.

Use whatever will make it run for 2500 miles

[Eddy67]

The rest of what story?

[Jeff G 78]

I paid $195 two years ago to have the bronze seats replaced with steel and a 3 angle valve job. That included the seats.

[Diseazd]

Eddy....If you're going to put a head on for the 2500 mile trip to the resto shop, go with the E88 or E31. If you install the N42 or N47 head (with the larger L28 valves, you'll need one of two things). 1) bore it out at least .030 inches so the exhaust valve clears the side of the L24 standard bore block or 2) notch the side of the cylinder to allow valve clearance. Install the E88 or E31 and you can bolt it right up with no clearance issues if you go back with the stock L24 valves. Once you decide for sure which head you'll use, our knowledgeable members will advise you on further needed steps.

[madkaw]

The rest of what story?

It's none if our business - but it does help to answer a GENERAL question like yours if we know the intent. We were all guessing the reason for your question when we could have been more direct with an answer.

Are you rebuilding, is this a performance question, what engine, etc....

[Eddy67]

Diseazd Gezzz I am glad I let you guys know the rest, I did not know about the valve clearing the cylinder walls

Jeff G 78 I did go back and read what it cost you to do the valve job, I should have looked first before asking the price, I think this is the better way to go, unfortunately there is no time to buy the right books on redoing datsuns, I am sure I will need read it several times being dyslexic and all, and due to the time left to do this job I figured it best just to talk to you guys.

madkaw There's a lot that I need to consider at this time with the move coming up, the time that's left to do this job and money is kind of tight right now, I did not want to bore you guys with all of that. Plus I picked up a pretty nice virgin 1970 510 I need to prepare for the tow back also. Automotive machining is a bit on the expensive side in Canada, so I think its worth while to spend a little more than I wanted too now and have the valve seats replaced and have it done right then there will be no need to take this engine apart later. I do have access to another engine back home that I can make a little more high performance at a later date, but I still want this one done right, so I will do the E31 and have the valves done at the same time

Sorry for the confusion

Thanks

[Diseazd]

E31 with stock valves and seats.....not L28 valves and seats. Good Luck ole boy....takes a while to figure out what works and doesn't work with these cars.

[Eddy67]

I hope you guys have the patience for a few more questions along the way.

I measured my heads height every 6" or so all the way around the head and noticed different measurements, so obviously they are only machining one side of the head meaning that the cam holders are all at different heights, so the question is why aren't the flipping these heads over and grinding the other side also to insure that the cam holders are all at the right height and that the head is truly parallel top and bottom?