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170 HP Chrysler Replacement

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jeffnick

Regular Contributor
A friend bought a 1973 houseboat with twin 6 cyl 170 HP motors. He's worried about parts. Is there a more common motor that will work with his 250 out-drives - without having to do complicated modifications?
 
Largely depends on two things as to difficulty...
1) Center to center distance of existing motors
2) Mounting issues with the existing engines... Some 6cylinder inlines (MERC) mount to a transverse stringer with a single mount off the nose of the engine. It's been many decades since I've seen a 6 cylinder MOPAR and I don't remember how those 6's ( slant 6???) mount.
3) Any number of motors can be made to work with his 250 drives ( may have to change to housing between the transom shield itself and the motor)... unless he has the extended housing which has a generic (likely Borg-Warner pattern) "bobtail" end, which will allow him to use just about any engine. Most likely the reductions in these drives are for 6 cylinder so unless he wants to do work on the drives themselves ( change reductions), he is limited to 6 cylinder engines.
 
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jeffnick said:
A friend bought a 1973 houseboat with twin 6 cyl 170 HP motors. He's worried about parts. Is there a more common motor that will work with his 250 out-drives - without having to do complicated modifications?
Click to expand...


The AQ series Volvo Penta can use the Borg Warner (slash) Volvo Penta PDS adapter housing.
This allows the use of any Engine that is Borg Warner component capable.
In other words...... if there is a B/W Flywheel Cover for the engine, it can be made to work with the AQ series drive!

If you need more info..... ask!



.
 
RicardoMarine said:
.......................



The AQ series Volvo Penta can use the Borg Warner (slash) Volvo Penta PDS adapter housing.
This allows the use of any Engine that is Borg Warner component capable.
In other words...... if there is a B/W Flywheel Cover for the engine, it can be made to work with the AQ series drive!

If you need more info..... ask!



.
Click to expand...

And this housing has the additional benefit of allowing an engine with the "starter up" ( and not sitting in the bilge) configuration.
 
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