Stage Jr to GN1 heads

[bob86gn]

Well, I started the swap of my Stage Jr heads from Dave Chase to Aluminum GN1 heads today. The Stage Jrs went easy low 12/high 11 without crazy boost. Once I opened up the motor I found the head gasket on #3 was blown out the top towards the intake manifold. That probably explains my oil blowing out the breathers under boost. I will start the bolt up of the Champions tomorrow but man I am a little nervous about the Champions sealing with stock gaskets and living a long life without breaking.

I know Warpspeed has about 40K on his without any problems, anyone else had GOOD luck with these heads?

 

[bob86gn]

ttt

 

[S2V6RACER]

What are stage Jr's?

 

[Russ Merritt]

Just don't forget the GM seal tabs!!!!!!