Stage ll Heads Install on 3.8/4.1

[Ken Adams]

I've come across some Stage ll heads for sale. Is it possible to install these heads on a regular production 3.8 or 4.1 9 non-stage block? What would be required to complete the install? Thanks for any input

 

[Ken Adams]

Stage ll Heads

I forgot to provide in my original post, the heads number is 2550 0031.

 

[leophious]

stg II heads

Never tried it but if you want to install off-center intake, stg II headers and cam before you blow the whole bottom end out of it, go ahead. Have fun,

 

[Ken Adams]

Stage ll Heads on 3.8/4.1

Enough said, thanks for your input.

 

[gnxtc2]

The 3.8 bore is going to shroud the valves. Also the valve arrangement is different on the Stage head, hence need different intake, cam and headers.

Billy T.
gnxtc2@aol.com

 

[49-blues]

how much would be involved on doing this to a production 4.1- i have all the parts except the cam? Ive heard mike from full throttle put one of these together-any input on how its doing?