MG Metro head - good idea to convert to unleaded?
Turbo Mini Forums

As part of wider engine renovations, I am considering having unleaded inserts fitted. I have had conflicting advice if this is a good idea, given the large valve head particularly given turbo application.

What are the views of the wise people in this group?

I note the later unleaded MG Metro heads had smaller exhaust valves.

HOSS

The later unleaded MG heads had smaller inlet valves.
It does increase the risk of cracking a bit, but you'll find every aftermarket head with a 36/29mm valve combination fitted with unleaded seats nowadays, so I wouldn't worry.

Phil.

WWW.TURBO-MINI.COM

Yeh. I wouldn't worry. Everyone does it.

Phil, Cheers will drop you a message want to talk to you about dry deck machine work, 11 studs and unleaded converstion.

Do wounder if machine shop i was talking to knew difference between elbow grease and arse grease.

HOSS