> I was at an estate sale this weekend and found a Nissan head...
> It has "Nissan Japan 210 " on the side...
>From <http://datsun510.wikia.com/wiki/Nissan_L_engine_cylinder_heads>:
===
"Semi Peanut
This is by far the least desirable of the three type of combustion chamber
designs. The semi-peanut combustion chamber is commonly found on 210
casting cylinder heads from US market L-16 engines. It has less quench
area than the true peanut chambered heads and less combustion chamber
volume (aprox. 38.5) than either of the other two designs."
===
It's on the web, it must be true :-)
However... another list member says it's desirable, so I dunno.....
Of the three listed styles, this head appears to be by far the
highest compression (open=45.2cc, peanut=41cc, semi-peanut=41cc).
And if it's been cut, then it's even higher...
On L engines, wasn't there something about round vs square exhaust ports?
-- John
John F Sandhoff sandhoff@csus.edu Sacramento, CA
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