What do you mean a pre-heat manifold? Intake or exhaust? Intake, I'll guess.
The air intake manifold on the equivalent Volvo Penta marine service engines include coolant passages.
You may be able to use a B230 air intake manifold from 1984-1988 with LH-Jetronic 2.2 from other 240s and 740s with turbo. Unless yours is a turbo.
Yet marine service engine usually are carburetor-equipped and are not compatible with fuel injection.
Where are you? Try any of the salvage yards?
You would do better asking in the RWD forum to get a more rapid and compressive response.
Click RWD above, or (copy and paste into new browser tab or window):
https://www.brickboard.com/RWD/
Hope that helps.
--
I can haz cheeseburger?
|