>The common swap for 510 owners was swapping the L20b from a
>Datsun truck into their 510.
FYI, potential L20b donors:
1974-1975 610 sedan/wagon
1974-1976 710 sedan/wagon
1974-1979 620 truck
1980 720 truck
1979 510 sedan/wagon
1978-1979 200SX coupe
Best potential donors are early (pre-78) trucks or 610/710.
They have the U67 head. Not the greatest, but the best
stock USDM head. The JDM heads are better, but that's
usually an ebay thing, not a junkyard thing. You'd be
looking for an A87 (closed chamber JDM, not open chamber
USDM) head often referred to as a "peanut" head because
of the peanut/heart shaped combustion chamber. Also the
"SSS" head is a good choice, look for casting #219 or #V912.
Casting number is right below the #2 spark plug hole.
I've built at least 15 of these, so if you have any specific
questions, feel free to ask me. :^)
John
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