Blew the head gasket again

[revhead347]

Sounds pretty normal. It blew compression from the combustion chamber through into the water jacket, and out the side into the valley. It's got to be a massive gasket leak to get a lot of coolant into the combustion chamber.

Kurt

 

[rio95]

Yea it's very frustrating... supposedly its a reputable machine shop, my dad has built three motors and got his stuff done there. I made sure the head gasket was on right. It had a tune on it... I was going very easy on it just to be sure anyway. Is 220* overheating? Maybe that blew it? But it wasn't running that long. I just need to find a low mileage motor or something.

220 isn't that much in my opinion. That wouldn't blow the head gasket, but probably got that hot because of the gasket. My car gets near that temp when it's running perfectly fine.

If I remember correctly the Haynes manual has pretty low torque numbers. With iron heads most guys on Turbomustang and myself torque to roughly 85 on the bottom row and 95 on the top with ARP bolts. I use Felpro 9333-PT1's and swear by them. Did you cleans the surfaces very very very well?

Also, with 10 base timing with no tune, it wouldn't take much at all to blow a gasket. I had my timing off one time and blew it within one mile at quarter throttle. Blew in like 2 spots. If your spout was in and you gave it jsut a touch too much it could easily blow due to the timing being WAY to high once it gets advanced.