1989 275 johnson
 

would this be a good motor for a 23 savage i cant find much info on these motors i know it must be heavy i did find a pic of a seacraft with a 300 merc on a sc i know back in the day they most of used these motors

I think these were the V-8 engines, might want to double check. If it is, bring out your BIG crdit card 'cause they eat gas like beyond crazy.

I think there was a very short run of those monster Mercs, 3.4 liter. You will burn fuel like a space shuttle, even for an old 2smoke. Same deal with the old thirsty v8 omc's.

so even if i get the motor for almost nothing it will still put a hole in my pocket bummer

I wouldnt say all that. Parts are plentiful enough for those old v8 omc's. They are reliable, simple. Huge. Thirsssssssssssssssssssty, plus the oil to go with the gas.

I had one on a 25 Oceanic and it pushed the boat close to 48 on the GPS and mine even had power steering!
It took me everwhere and I mean everywhere..Bahamas at least 15 times Tortugas 3 times countless times to Elliot Key and the Florida Keys not to mentione all the local fishing and bar hopping outtings.

It does like the gas but hey it's a V8 and it pushes a fairly large boat full of stuff and gas was 50 cents back then

But for free you can buy a lot of gas with the savings

anyone have an ideal of the numbers i could get. my last boat a 20 seafari with a 175 and id drink 50 gallons plus in a day thats why i got the 23 with 130 gallon tank now. ill be going out atleast 2 time a week. i wont mind if its not to killer on gas. it also is 550 pound is that to heavy

I think the OMC V8 was 2 of their V4s stacked on one another

Here's a couple of the ol V -8s in action. One of my favorite videos
http://www.youtube.com/watch?v=hZ-sgjuMJcg

When I would run Miami Beach to Bimini I would burn 40 to 45 gals it was 51 miles from my house dock to Bimini....... If you opened up it was another thing and yes I would get up and go but I would need to visit the gas pump ealier

You have to keep your spread skippin` and diving. Far from optimal. I burned 35 gals Sunday.

Nature of the old carbed motors. That`s a single 150.

The V8 was a beast. Monty Racing got sick numbers from that block.

Cheers,
GFS

Didn't the OMC V8s have an oil starvation issue in the top 2 cylinders, hence many of them lived a short life? Perhaps that was with VRO so maybe if you bypass that and premix it may not be an issue???

I had one on a 23 Sceptre, weight was not an issue on that hull, as 2 2.5 mercs weigh over 800 or 2 inline 150's that I replaced went 600.

Yes it is basically 2 140's, so parts are readily available and easy to work on except carb sync.

Yes it will eat some gas about what 2 140's would take but not that bad UNLESS - you start to feed it. I ran mine once with the airbox off and it is amazing how much fuel goes into 8 carbs but the sound you will never forget.

That Sceptre would almost literally fly - I had a tach hole to fill so stuck a 55mph speedo in = worthless - would go all the way around to the peg at zero

Never had any little issues with mine at all, if its cheap enough and has compression you can buy alot of gas as thay say

i think i mit have to get it. what would be good compression on these motors. as long as its better then twin 140s witch i wanted on gas and has great power im in. the guy im buying it from has a couple of them so i mit just pick up two or three for parts if needed

my favorite omc v8 videos
http://www.youtube.com/watch?v=RI9zRXmowO8
http://www.youtube.com/watch?v=3yr7F2uSOU8

this one thing i dont want to happen. because im going to be crossing alot http://youtu.be/9ANnmOAB8js

I think don't think it was a looper so 115 should be good - if it is a looper they run less but consistence is good - extra parts are always good