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MG MGB Technical - bonnet exchange

Does anybody know if the bonnet from a 1964 is the same as a 67 GT. My friends GT was in an accident and has a damaged hood. I have a 64 parts car that has an aluminum hood but I am not sure if it is the same.
GK George

The hoods are identical. The only thing is that you may have to change over the prop.
Iain MacKintosh

On another note ally bonnets (hoods) are infinitely more valuable than a steel one. This factor might not be a consideration as the recipient is a mate of yours.
Peter Malkin

Just resurrecting this thread. Are alloy bonnets common? When and why did they appear? when were they dropped? Just curious, I suppose a magnet would indicate, if one had one? Mike
J.M. Doust

You will know the second you lift an aluminium bonnet. Compared to steel it weighs nothing. It was standard fit when the car was launched. I believe it was deleted for the MkII in 1968 usual BMC reason. I have also heard that some early cars had aluminium bootlids as well. The MGB while being a lot easier to live with than the MGa was porkieer and has more profile drag, I'm sure the money went on weight saving while the memory of the earlier car was still fresh in buyers minds.
Stan Best

My '71 had an aluminium lid, as does my '69 GT.
Mike Howlett

Bonnet weights:

MGB alloy - #15
MGB steel - #29
MGC alloy - #17
MGB fiberglass w/steel reinforcement - #19

These are bonnets that I weighed just last week.
Rick Ingram

Clausager sez the bonnet was aluminium until the end of the 1969 model year. Some 1970 models may have had them while stocks were used up. Some of those may not have been registered for many months, and with later models a PO could have exchanged it.
PaulH Solihull

The simple answer is that the aluminum hoods, that were introduced on the '62 B, were a weight saving measure. The switch to steel , at the end of the '60s, was a purely financial move. RAY
rjm RAY

This thread was discussed between 24/08/2011 and 15/09/2011

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