[Healeys] Head Weight

Mark Donaldson ardmorebusiness at xtra.co.nz
Sat Oct 30 18:02:46 MDT 2021

BMI was important in my rowing days on the water.   I still work out regularly on my Concept II erg here at home.

BMI = weight (kg) / height (m) squared


Just for the hell of it, I worked out the BMI for the cylinder head  . . .   37.64 kg / 0.72m  x  0.72m = 72.4


If it was human I reckon it’s doctor would be pretty worried.   25 is the ‘text book’ figure to aim for (according to the health insurers.)   😊


Yours, in lockdown,






From: Bob Spidell <bspidell at comcast.net> 
Sent: Saturday, 30 October 2021 6:08 AM
To: healeys at autox.team.net
Subject: Re: [Healeys] Head Weight


But what is its BMI?   That's what's important.

On 10/29/2021 9:33 AM, healeyguy--- via Healeys wrote:

The question regarding the head weight apparently struck a nerve so I took the bathroom scale (rarely used) to the garage and gently set a BJ8 head with valves, springs and intake studs in place, on the scale.  83 pounds. 




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