is this 280 /300

[TEXAS20225]

is this or is it not a 280/300 tuner

[TEXAS20225]

pix i got a wanna be sying this is a 260 tuner i think not
279693

[tux974]

Not a 245/260, it is a 280
Late 2.5 245/260 a 1/2" flange
http://i40.tinypic.com/34y5tvq.jpg
Early 2.5 245/260 a 3/8" flange
http://i41.tinypic.com/vg22kn.jpg

[bigbluechevy454]

Im pretty sure some of the late model 260 tuners are oval as well as 280 and drag

[tux974]

Im pretty sure some of the late model 260 tuners are oval as well as 280 and drag

You can run the 280/300 tuner but they never came that way from Mercury. Even the plates are different due to the oval ports.

[RBT]

It is a late model 260.
280 has holes in the tuner, the drag is staggered.

[TEXAS20225]

thanks i guess im the wanna be it was on a 2007 280 but that means nuttin in this world i bought a 1998 260 and it had a square tuner on it like tonys in the pix you never know

[tux974]

I guess I stand corrected, have had a few 245/260 and never had one original with a tuner like it. I think they just drilled holes and it became the official 280 ;):D

[bigbluechevy454]

It is a late model 260.
280 has holes in the tuner, the drag is staggered.
I agree

[TEXAS20225]

Tony no big deal IM wrong all the time to hear the other half tell it :D i spent quite a few nights in the shop in the last 30 years (how long we are married) i also was thinking that was a replacment power head on the 280 i also got some G force tuners where is Norris he can vouch for the horse power gains off of them

[tux974]

LOL!!!.....:D Bobby, just curious, are the bottom ports where it bolts oval? If they are oval I say it is a Mercury thing, lets use what we have, 280 plate and a very late 260 tuner ;):D