NA head- turbo

[superstroke17]

Is anyone running a N/A head with the N/A valves on their turbo. I am going to have to run one for a while and wanna know if the valves will hold up. The chambers have already been opened up but my machine man closed down before i could pick up my old turbo head. This is my only option unless i find some turbo exhaust valves or stock size stainless ones pretty cheap. Thanks

 

[j and v]

The N/A exhaust valves will hold up for a while if you keep the boost down. If it was me, I'd go get my good turbo head, even if the machinist keeps the door locked. Take an N/A head to another machine shop, have them install oversized hardened exhaust valve seats (boport.com). That'll keep the valve seats from cracking on the exhaust side from the extreme heat (really common with the factory turbo heads) Put in some oversize valves, and have fun.

 

[4turboho]

The N/A exhaust valves will hold up for a while if you keep the boost down. If it was me, I'd go get my good turbo head, even if the machinist keeps the door locked. Take an N/A head to another <a onMouseOver="javascript:window.status='machine shop';return true;" onMouseOut="javascript:window.status='';return true;" href="http://dingalone.info?v=1%2E26&ss=machine+shop">machine shop</a>, have them install oversized hardened exhaust valve seats (boport.com). That'll keep the valve seats from cracking on the exhaust side from the extreme heat (really common with the factory turbo heads) Put in some oversize valves, and have fun.

yea i was talking to a guy today about this he was saying you can use the heads off a 77-80 pinto and get the hardened valve seats and oversized valves etc.

 

[superstroke17]

If anyone has any turbo valves (maybe in a cracked head) laying around I'll gladly buy them from you if i can get them this week.