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L18 V912/219 head


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It may be L18SSS option for the '71 KH510 JDM coupe. Are you near South Africa?? They were assembled there also. This engine would have dual Hitachi SU carburetors and 9 to one compression.... OR someone acquired a 912 head and put it on a regular low compression L18. Some A87 closed chamber heads have a 912 cast on the front bottom on the distributor side. Here we sometimes see these closed chamber heads from imported engines from the '70s and '80s. It was cheaper than rebuilding them. I have a set of Hitachi SUs and the intake from one.

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Nice! The KH510 L18SSS was rated at 115PS which is 113HP. Back then this was a gross HP measurement from the crankshaft. Today's measurements are net HP with all the parasitic losses and more comparable. Assuming about a 17% in drive train loss this would be just under 100HP which is about 15 HP more than the regular L18 with a downdraft 2 bbl.


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