Wamilton's head questions

[JetManiac]

Helping a customer. Does anyone know who made this Wamilton's head? Same as?

 

[Big Kahuna]

UMI. Think PROTEC Domes may work. May be same as.the old Blowsion head Domes.

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[Big Kahuna]

Greater Yamaha head was same also.

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[JetManiac]

Ok thanks. Just matching up Orings. ADA girdle kit work?

 

[Big Kahuna]

If the opening is correct size girdle kit should work.

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[restosud]

you may have to recut the bolts as they have the double threaded base nuts .

 

[Big Kahuna]

you may have to recut the bolts as they have the double threaded base nuts .

I think he means use entire ADA Girdle kit.

 

[restosud]

i don't know that i would do that on those heads.the shell is 2 pieces and perhaps not as stiff as the ada therefore may not hold the cylinder down as well?
the double threaded nut setup is imo better as it actually clamps the base down just as oem intended it.

 

[Big Kahuna]

No difference. Whether the girdle is threading into the case or the case bolt. The head does not care.

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[Big Kahuna]

Nor does the cylinder care, as long as it's getting squished between the head and cases. The girdle bolts are helping to take the load of the headpipe and manifold off the cylinders.

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