I recently purchased Kane.s2k's Alaniz ported head. I have a built block with sleeves and 9:1 compression CP pistons. The head has 1.5 mm oversized intake valves and 1 mm oversized exhaust valves with AP1 cams.

Questions:
1. Will I have any valve clearance issues with these oversized valves and my pistons ?
2. I plan on re-tuning anyway, but any issue with driving (no boost as IC is off) to the tuner with new head and old tune?
3. What kind of power can I expect to add with this new head?

thanks for any input...

 

I think you may have the valve sizes incorrect. Alaniz built a few heads and never went larger than one mm on exhaust and 0.5mm on the intake as far as I am aware.

You should have adequate clearance with the CP pistons. That is the setup I am running.

You can drive a short distance but just be very easy on it before the tune.

The power should go up 10 to 15% with a good tune.

************************************************** *******************

Heads up to others, Alaniz is a great head carver and a thief. Do not deal with him, he will screw you take your money and goods too. He has takes several people on this board for over $10,000 total that I am aware of.
Check with Central Florida Turbo about the heads he stole from them if you doubt me.
Finding a used Alaniz head is good, Congratulations to the OP.

 

Thanks. Here is for sale thread with specs on the head.

https://www.s2ki.com/forums/index.php?showtopic=785081

 

Always more increase in size on the exhaust side since that is where the gains are .

It's probably an error and should be 0.5 instead of 1.5.

If the head is off you can physically measure them to remove any doubt.

Anyway, it's a mute point.

Bottom line is congratulations on getting one and let us know what the out put is when you dyno.

 

Thanks. I will.

 

Be sure to have the head checked for straightness before you install it.