Some English people have used Triumph pistons in their
L6 engines. I think the bore size is 88.9 mm? Spike
Anderson would know but he's in Malaga, Spain.
Rob???
Thomas
Alex Avery wrote:
> Ok, I know it's not a roadster topic, but I trust you guys and I need some
> advice. I'm trying to gather all the parts for my Z motor and I cast
> flat-top pistons. So far the biggest I can find are 0.04" overbore over the
> stock 86mm. I'd like to go to 88mm but it ain't critical. It'll be a high
> compression motor when its done, about 10:1, through a combo of increased
> bore and shaved P79 head.
>
> Any suggestions from you die-hard motorheads out there for companies that
> sell good cast pistons? Are there sources for Nissan cast flat-tops in 87
> or 88mm bore?
>
> A guy on the Z forum says he's got 86.75mm cast flat tops for $42 apiece
> plus shipping. Good deal? (He says 86.75mm is the same as 0.04" overbore
> from stock, but my dictionary says 0.04" = 1.016mm?)
>
> Thanks in advance for any replies.
> Alex in Virginia
>
> P.S. I've also got both the stock 280 connecting rods, as well as the 2.6mm
> longer 240 connecting rods (the good 9mm ones). I'm told that I'll have
> more torque with the 280 rods, but the longer rods will give me better rev
> characteristics. Any thoughts on which ones I should use? If I go with the
> 240 rods, I'll have to shave the flat top pistons 2.5mm.
>
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<><><><><><><><><><><>
Thomas in Sweden
1965 Nissan Silvia #319
1965 Nissan Silvia #293
1984 BMW M6 #521
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