TR2/3/3A Standard Vanguard cylinder head on their Triumph

[sp53]

Anyone here have any experience will putting a Standard Vanguard cylinder head on their Triumph? I have found a low port Vanguard head that fits on a tr2 or tr3. There is a small modification that needs to be made. The head bolts on a Vanguard are 7/16 and not ½ inch like the Triumph, and the exhaust ports are round and not rectangular like a Triumh, but that is supposed not to be a problem. Other than that my understanding is you cannot tell the difference when everything is hooked up on the engine.

Thank steve

 

[sp53]

Here is a picture of the Vanguard head. I wanted to put this head on a tr3 engine, but I am not sure of the effect the head would have on performance. I do not mind a small lack of power the setup would have, my main concern would be the fouling out of spark plugs. I have a set of H4 carbs for it. Anyways perhaps someone would know if a low compression head would create a problem in general.

There are probably low port heads for a tr2 out there under some ones work bench. I am not sure where to find a tr2 crew. I did meet a guy on the East coast who is restoring a tr2, but no one is letting go of any parts.

Thanks steve