Originally Posted by goinbroke2 (Post 697663)

For us crayon eaters in the class, can you explain the pictures in better detail please?
I understand you want all the valve heads the same height in the chamber so with sunk seats, you're replacing the seats and getting all the heads to sit at the same height...got it. But in the picture where you say you have .060, you're measuring from the deck height and what? I can't see but I'm assuming you're going to the top of the seat you installed?

Once all valves are sitting in the same place in the chamber, the cc's should be closer to start with...am I on the same page or in left field?

Originally Posted by HP HUNTER (Post 697463)

A while back I was looking for a transmission and came across a complete 335 HP 396 Stocker drive train for sale and and bought it. From what I've been told this engine/trans ran 3-5 tenths under the index in D/SA trim, dyno data also came with the engine which I will share as well. My plan is to go through the 290 head castings and see if I can make some improvements then dyno test the engine and finally run it in the car. I tore the heads down and preliminary cleaned them for a flow test, which I will post as the car ran 3-5 under the index. I will be testing the other head as well before any work starts to make sure it's similar in flow to the first head tested.

Originally Posted by MAURICE BLENDHEIM (Post 697673)

Mark… I am really looking forward to the results. As per our previous discussion it should be interesting. Maurice

Originally Posted by goinbroke2 (Post 697919)

If you don't mind sharing, how wide is the seat and how wide are the other angles?

Thanks

Originally Posted by goinbroke2 (Post 697939)

Hmm, narrower than i thought. I kept exh seat a bit wider to help heat dissipation (.070)
And then I did the same for intake (.070) and the others were kept to whatever it took to put the seat (45) where i wanted it so the 30 and 60 vary from .030 to .07.

Am i on the right track or did i mess up?