Gross weight differences O-2 vs. 337

[hew]

I have a C337E, MTOW 4440lbs, the TC337E has a MTOW of 4630lbs, the C337F has a MTOW of 4630lbs. Is it possible to increase 4440 lbs to 4630 lbs without modifications. The E & F models were almost identical. The service C337SM65 Service Manual lists the C337E MTOW as 4630 lbs.
What should I use?

[hharney]

A6CE is the law of the land


http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/a036166830d57422862572430067c12b/$FILE/A6CE.pdf

[hew]

I have this email from Owen Bell, "We have an STC program in process which will address your request. Hoping to have finished early in 2015" looks promising.