Hi guys,
Found something that strikes me as weird, and wanted to know what the
deal is.
I've got 3 engine heads for a 1600 Datsun Roadster. (Have one car, a
parts car, and part of a 3rd parts car)
1 is a cast iron head, (my roadster had a forklift motor in it when I
bought it. Yup, with the forklift cam, oil pan, everything...some
bonehead literally dropped a forklift motor in the car without making
ANY changes at all to it. Duh.)
2 are Aluminum heads.
The cast iron head uses 5/16 x 18 studs for the exhaust/intake manifolds
ONE of my aluminum heads uses the same size English bolts.
my OTHER aluminum head takes 8mm x 1.25 studs.
Is this normal? Were some of these metric while others were English?
Also, I took the water pump off of my spare car, and found a 1" thick
aluminum "spacer block/plate" between the pump and the engine. My other
2 motors did NOT have that, and the book doesn't show one.
What's the story on that?
My questions are more out of curiosity than anything else, but I would
like to know what's up with this stuff...
Thanks.
Eddie
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