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Mark, et al-
The 1800 has a pushrod engine- all of these, B-16, B-18, B-20,
are mounted vertically- ie straight up and down; the B-21 on were
mounted at a slant to lower the hoodline. Look at a '76 or later 240
vs a 140, 122, 444, 1800 and you'll see what I mean. They are both
inline, fore and aft, but the later engines are rotated to the side
about 30 degrees- like the old "slant six" in the Dodge Darts."
I have seen the later OHC engines mounted in the earlier cars,
with the engine NOT slanted, but straight up, or vertical. Due
to the small engine compartment on the 1800, this seems to be the best
way to fit the twincam into the car.
The reason for using the twincam is he got it for about $150, and
it has very low miles on it. The cost of building a B-20 is far more
than $150. Finding a B-20 with very low miles for this price is also
highly unlikely. The original B-18 is very tired, and no longer road-
worthy. Since he has only limited cash, and a number of dead Volvos
he can pull parts from at little cost, the swap makes the best use
of his resources- he can do the mechanical stuff himself, with a little
guidance.
The question about the oil pump was because I've been told the B-21
oil pump doesn't pick up properly when the B-21 is mated to a B-20 pan
and mounted upright in an older Volvo.
I hope that some one who has put an OHC engine into one of the older
cars can advise us on what parts to use to make a successful swap.
Thanks for any help!
Doug
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