1989 J225TLCED: retrofit 1996-2001 90 deg looper Al carbs?

[PaulCT]

Forgive me if this has been discussed, I searched the forum for a similar thread but I did not find a match.

Is it feasible to use Aluminum carburetor bodies from a 1996-2001 90 deg V6 looper (PN 0437323) to replace the plastic carbs on a 1989 90 deg looper (0432513)? If this is possible, I would re-use my existing jets.

Both 1989 and 2001 have the same P/N for the carb-body to throttle-body gasket, as well as the throttle body to intake manifold gasket. This gives me some hope that they may be compatible, but that's hardly conclusive metric. I'll have access the 2001 throttle bodies as well, so I'll swap these if that's necessary.

thanks for any input,

Paul

 

[jimmbo]

I think OMC switched to the Plastic, partially for costs, but also the Plastic reduced Heat Transfer to the Carb, and didn't corrode when exposed to those nasty additives(like Ethanol) added to Gasoline to chemically burn Leaner.

There is more to a Carbs Fuel Delivery Curve than just the Jets. Air Bleeds for example may be different, as may be the Off Idle Transfer Slot. Do they have the same size Venturi? Appearing similar, even looking the same at a glance may not really be be.
Are both sets off of the same HP? Were there any differences between the Yrs with regards to Exhaust Tuning, Port Timing?

 

[Mc Tool]

I think OMC switched to the Plastic, partially for costs, but also the Plastic reduced Heat Transfer to the Carb, and didn't corrode when exposed to those nasty additives(like Ethanol) added to Gasoline to chemically burn Leaner.

There is more to a Carbs Fuel Delivery Curve than just the Jets. Air Bleeds for example may be different, as may be the Off Idle Transfer Slot. Do they have the same size Venturi? Appearing similar, even looking the same at a glance may not really be be.
Are both sets off of the same HP? Were there any differences between the Yrs with regards to Exhaust Tuning, Port Timing?

Or ......
Chuck em on , jets an all , and see what happens .

 

[Chris1956]

What is wrong with the plastic carbs? Other than replacing the carb bowls once, I have had no issue with the ones on my '98 Johnny 150HPV6.