48/38mm valves at jpm230/250 heads are manley ss, meaning stainless steel and retainers are titanium when new. What anything is worth at racing, you have to deside that yourself. Sometime 2mm is needed.. I had… 304hp/320Nm from 230 heads at NA engine…

yes may be 50/48 doable. but I think, Is it worth to change Ti valve for 2 mm bigger?

anyway Elnef engine look very promising

I was never very satisfied with the metalflake Grant so when i found a great deal on a Nardi i could 't resist

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Evo350 has 54/40 valves and 4” bore. All other jpm heads have 48/38. But you can fit about 50/40 in those.

I have alittle tooo many of these already so time to let one go .... Chrome bezel is beautiful the glass is perfect the face is clean and best of all is that it is in working condition and the wires are intact and also in good condition

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That is very good  spread valve guide. I have old JPM but max only 48 38 and the valve almost touching each other

54 40

.

Hi Elnef.

would you share the valve size with those awsome heads

These are ready to RUN.
Price is $495/set of 4 genuine Porsche p/n 616.103.101.01 Connecting Rods for the 1965-1969 1600cc 356 SC and/or 912.

Qty 4 new silicon-bronze wrist pin bushings are pressed into place, and 8 new factory rod nuts are installed and torqued-up.

I have 2 matched sets of these, both resized/reconditioned by yours truly way back in 1975 when I worked for a well-established jobber in the Pasadena area: Ray Litz's Competition Engineering.
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A USPS MO also works for outta state regions/customers.
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