New 1100 cylinder head

S

sledghammer

True Classic
This is similar to Jeff's recently sold used one, except its new and Only difference I can see is the casting number which is 5958906.
Valve sizes are the same. 36mm inlet and 30.5mm exhaust as far as I can measure accurately with steel rule.
Total including shipping to US is £125, thats about $200.

http://imageshack.us/a/img818/6757/001ybp.jpg

I can email more photos.
 
I'm pretty interested if this is good for a 1300 engine as i want higher compression.
also would you post to australia?
thanks
 
It will bump the static CR as the combustion chamber has a smaller volume than the 1300 style, BUT, (and it's a big but) the head will be flow compromised as a result of the combustion chamber shrouding the intake valves...the 1100cc chamber is only 80mm across whereas the 1300/1500 is out at 86mm (which is the bore size)

Basic flow is around 80cfm at 8mm (ish) lift and 28" of water depression, flow doesn't increase by anything significant even if you open the valves further, at 10mm it's only about 83cfm

Basically, it will have more punch up to around 5500rpm, and will then run out of puff completely...

SteveC
 
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