Volvo repower

I'm looking to buy a used

I'm looking to buy a used boat with an AQ151 with a 290 OD. I have heard some bad things about the 151. Is it a good engine? The one is this boat is a converted car engine. Is that a problem? I have a great AQ130 in my existing boat and absolutely love it. Can I change it out and bolt it up to the 290 or would I need to move my 280 OD over with it? Woulf the hole in the transom be the same? Any chance of a new 3.0 liter hooking up to either a 280 or 290?

"1) 4 cylinder Volvos OHC

"1) 4 cylinder Volvos OHC are good engines, you just have to treat them well; 2) Volvo OHC "marine" engines are nothing but car engines with a different camshaft and "marine" carbs, distributors, starters, alternators, intake manifolds, fuel pumps and cooling pumps. If the car engine has a marine "V" camshaft, it will perform as well as an original AQ151; 3) You can bolt the AQ151 in the same bellhousing as your AQ130, so you can use your current outdrive, transom shield, etc; and you can bolt an AQ130 to a 290 (though I do not understand why would you want to do that); however, you cannot install a 280 transom whield on a transom with a 290: the hole in the 290 is larger, and so is the bolt pattern; d) Nope, you cannot adapt a 3 liter to a 280 or a 290 unless you also change the bellhousing (and probably a few more things as well)."

Thanks for all the good info.

Thanks for all the good info.

So it is possible to put a 3.0 to a 280 by using a different bell housing plus?

"I should better say "it i

"I should better say "it is not impossible". I have never tried this, but you may want to explore whether or not this would be feasible.

The 3.0 os a GM based engine, but the bellhousing made for it is for the SX.

http://www.dougrussell.com/partscatalog/volvo_omc/index.cfm?fuseaction=comp&grou p=2912&GroupList=2906,2907,2908,2909,2910,2911,2912,2913,2914,3043,2915,2916,304 5,3040,2917,3046,3041,3042,2918,2919,2920

That bellhousing will not fit a 280 or a 290.

Now, let's make the assumption (I don't know that for sure) that the bellhousing bolt pattern on a Chevy 3.0 is the same as on a 4.3, or a 5.0 or a 5.7. In that case, if the flywheel of the 3.0 is 12.75 inches or smaller, you might be able to install this bellhousing (part 72, VP number 835978):

http://www.dougrussell.com/partscatalog/volvo_omc/index.cfm?fuseaction=comp&grou p=2116&GroupList=2106,2107,2108,2109,2110,2111,2112,2113,2114,2116,2115,2117,211 8,2119,2120,2121,2122,2123,2124,2125,2127,2128,2129,2130,2131,2132,2133,2134,213 5,2136,2137,2138,2139,2140,2141,2142,2143,2144,2145,2146,2147,2148,2149,2150,215 1,2152,2153,2154,2155,2156,2157,2158,2159,2160,2161,2162

And if the flywheel is around 14", you might be able to install this bellhousing (part 1, VP number 3856699, which also fits the 4.3, 5 and 5.7):

http://www.dougrussell.com/partscatalog/volvo_omc/index.cfm?fuseaction=comp&grou p=3118&GroupList=3136,3137,3134,3131,3139,3138,3129,3119,3126,3118,3120,3121,314 2,3123,3124,3114,3125,3116,3115,3128,3111,3112,3117,3122,3113

And if you find a suitable bellhousing, then you have to find a suitable vibration damper to attach to the flywheel (like part 90 in the following link, but not necessarily that particular one) with a spline where to fit the primary shaft contained in the bellhousing:

http://www.dougrussell.com/partscatalog/volvo_omc/index.cfm?fuseaction=comp&grou p=3093&GroupList=3109,3108,3094,3096,3093,3095,3103,3106,3105,3104,3099,3129,311 9,3126,3118,3097,3098,3120,3121,3123,3124,3114,3125,3116,3110,3115,3128,3127,310 2,3100,3111,3112,3117,3122,3113,3101

And if you managed to find all the above, remember that the 280 exhaust pipes are either Y-pipes for V6-V8; or (in case of 4 & 6 cyl Volvos) designed for engines exhausting through starboards side; but unfortunately for you, the 3.0 exhoust comes through port side. Sooooo, it seems that the next thing to try would be getting an exhaust Y-pipe for a 5.0/5.7 working on a 280 and cutting and blanking the starboard section. Then, of course, you will have the challenge of attaching the exhaust manifold and riser to the exhaust pipe, and that would probably involve cutting, fabricating, welding...and more money.

And after all that, according to Murphy's law, something else will likely go wrong...

My personal advice is: don't go into it, unless you have deep pockets and you are willing to accept that you may never finish the project."

"Thanks again. that sounds lik

"Thanks again. that sounds like more work (and risk) than I'm willing to take. My main problem with the SX od is that I fish a dory off the Oregon coast and the way we land is wide open till we hit the beach, The 280 is perfect for that by locking out the lockdown. The SX won't kick up thus ripping off the stern."