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    Volvo AQ231A block Casting Number

    The AQ231A is late 80’s vintage, pre Vortec. The 383 they say year 2000 and up and it’s Vortec. I know the block is dimensionally the same, but I want to make sure all the old accessories with bolt onto it without issue
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    Aq271c engine oil

    Can’t go wrong with shell rotella 15w-40. Been using it in my same era AQ231A for yrs, no problem. It’s cheap and has a wholesome additive package perfect for boats with solid lifters
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    Volvo AQ231A block Casting Number

    Would anyone know for sure the block casting number used by Volvo for the AQ231A? I’m looking at swapping in a rebuilt vortec 383 to replace the tired 305. The 383 uses the 350 block with a casting number of 880. I just want to make sure it’s compatable, having all the threaded holes for...
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    DuoProp Gear Ratio and Small Block V8’s

    I’m looking into options for upgrading from my original 305 AQ231A. I’m considering a 383 or maybe a tuned 350. I’d like a 383 but a new crate 350 is also quite a bit cheaper. But regardless, AQ DP lowers are available in 1.95 and 1.78 ratios. I know the 1.95 was made for the small block 305’s...
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    Anyone replace their AQ water neck fitting to a plastic one?

    I came across a plastic water neck fitting for the later DP-E DP-G’s. Would these work on the earlier 290, SP, and DP’s? the regular one is made of some sort of alloy that only lasts a few years even in fresh water. Would be a nice upgrade
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    Small Triangle Anodes for 290 SP and DP

    I have to replace the anodes on my drive. Martyr makes two anode kits for the SP 290. The regular kit comes with just the lower unit ring and transom shield block. The other one comes with two additional small triangles. I’ve read these go on the suspension fork? Would anyone have pictures of...
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    Performance Lower Unit for AQ Drives

    Are there any performance lower units for the older 270,280,290 style drives? I know volvo made the racing 270E lower unit. I also saw a picture of a 290 someplace with an aftermarket high speed lower. But I have no idea who made it
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    Looking for a Definitive Answer On AQ Drive Oil

    I’ve been using Straight SAE 30 in my drive. But lately I’ve been doing some research on the oils used.. One Volvo publication says on the single props engine oil is to be used on Everything up to The SP-A2 where it states “same as engine or SAE 90”. All afterwards models are all SAE 90. Another...
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    Volvo Ultra Stainless AQ prop Re-hub

    Anyone have experience with bonding in a new hub into an AQ series prop? I'm getting a local prop shop to remove the old spun hub that is glued in, they are going to use heat. But he offered I glue the new hub in myself, if I want to... if I do, what kind of epoxy should be used?
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    AQ series prop hub replacement

    I just got a old Volvo AQ ultra series 14x22 stainless prop. The prop is in great condition and rare to find nowadays. I installed it the other day and went for a test run. The hub is spun... Anyone know where can I find a replacement hub for these props?
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    Engine oil cooler kit

    Does anyone make an aftermarket oil cooler kit for the older Volvo V8 AQ style engines?
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    Valve Lash on non-roller aq231a

    I installed a new timing cover and crank seal. The timing pointer is a little bit off so I had to re-scribe true TDC and put a new timing tape on the harmonic balancer. To find TDC I used a brass piston stop, and in order to do that I had to remove the rocker arms on #1 cylinder so it wouldn't...
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    Electrical Circuit breakers

    I'm looking into replacing the instrument panel circuit breakers. Originally the boat came equipped with E-T-A series 1658 thermal overcurrent breakers. I'd like to replace them as 2 have snapped the mounting heads off and one breaker is unservicable. At $5-8 each i'm just going to replace them...
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    Changing power trim fluid Volvo Aq290/SP

    I'm looking to change the old fluid in my power trim system. It currently has motor oil in it. Volvo manual states motor oil or recommended ATF. Is there a good way to purge the old motor oil out before switching to ATF? Thanks
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    Aluminum water pump

    Does anyone make a SBC marine aluminum housed circulation pump thats designed for raw water cooling? I know Dennis Moore used to make them, but has since discontinued due to lack of sales. Any info would be great
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    Baretta Boats Windshield Weather stripping

    No Title Spent hours searching online. Its not taylor. Its weird cause baretta was a huge company at one point and all their boats came with the same extruded windshield "system". I've included a pic with the two profiles used. They seem very specific to the aluminum rail "system" used...
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    Baretta Boats Windshield Weather stripping

    Wondering if anyone out there knows who manufactured the weather stripping for Baretta Boats? I disassembled my windshield to get the frames powdercoated. The old stripping has contracted over the years and im looking for replacements. The was a sticker on the bottom of the drivers window that...
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    Any Advantage Going to Higher Temp Thermostat?

    I have a late 80's carbed 5.0L raw water cooled engine in my boat. It's run in fresh lake water. I know the stock thermostat is a 140* one. I see optional 160* and 180* ones available. Is there any benefit to running a higher temp one? Combustion efficiency or carbon build up?
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    Normal outdrive noise when trimmed up

    Hi there, Maybe I'm just being paranoid. But this winter I installed new u-joints and both PDS bearings and had the upper gearbox rebuilt professionally. I have no noises (just the smooth running small block engine) from -5 to 1 trim on the guage. When trimmed passed 2 the outdrive seems to...
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    Removing weight from stern good/bad idea?

    Thinking of one day maybe building a 383 with aluminum heads and manifolds/rises. Also thinking about rebuilding the engine cover and rear seat boxes out of lightweight coosa board. Question is will this be detrimental to the boats center of gravity? These changes would move the CG forward. Is...
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