here it is.




Thanks man, im gonna follow your advice.
What you think about the combustion chamber?

Quote:

Again they dont look to bad but measure them again with the syringes.

That centre combustion chamber looks like it's been welding a little bit and the inlet seat doesnt look 100% right.(Note the little gap on the spark plug side where the inlet and exhaust seats meet)

I dont know how much work you want to put in, but you can finish the inlet with 80 grit sand paper.That will give about the perfect finish for power.However the Hp gain from a mirror finish and the perfect finish for power(A little bit rough)is only about 1% so it's not really this big myth that everyone talks about.

Where you want the mirror finish is your exhaust port if your a perfectionist the last grade of sand paper you'll use is 1200 grit.

This helps keep heat off the exhaust port and stops carbon sticking to the port.

You also want to do the same mirror finish in the combustion chamber it's self.

You'd really only do this stuff for a race car, but it still works the same on a road car.

For details on measuring CCs, see A-series Cylinder Heads#Measuring_Combustion_Chamber_Volume

Thanks DD if i'd have known that was there It would have saved me sometime.

thanks killer , you were very helpfull to me.

My mechanic is helping me and teaching me at the same time, he is a very good mecanic. He have one competition shop, but i dont know how we gonna do to make the head better.


can you explain how or were i can do a "head flow" ?

Can you say what you have done to your engines-? and what hp you get.?

thanks
americo