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    Hardin Marine Exhaust on SBC (350 Mag)

    So....... I recently just purchased their Seaward Series exhaust manifolds. They are really nice pieces. Bolts are steel but otherwise a nice kit. Anyway, after removal of original manifold, I noticed that my heads have oval ports but the new exhaust manifold has larger square ports. This was on...
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    Boat Wrap

    So, I’m looking to get my boat wrapped. Was wondering if anyone knew the prep for one. Will they strip the wax? I ask because it needs to be de-oxidized for sure but should I continue with polish and wax? Can get by with using just an oxidation remover? I guess I could ask the installers but...
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    350 Mag couplers 18643A5 or 18643A7

    Hi, so my coupler has a triangle base but does NOT have the protruding sleeve that has a zerk fitting like on the A5 or A7 . My engine s/n A681758 is calling for 18643A7 which has a new shaft. Is this a conversion kit for the Alpha One Gen One?
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    Alpha 1 Gen 1 Mercruiser power steering

    Hi all, searched the internet until my age changed and searched this forum. Has anyone found a place where I can either get a new assembly or the seal kits? This thing is buggering up my engine bay. PS booster 57969A12, seal kit is 25-58224A1 PS Valve 816458A1, seal kit is 25-58225A1 I did find...
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    1987 350 Mercruiser thermostat choices

    So I’m finding a choice between 140 and 160 degree thermostat for this engine. How shall I choose?
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    Transom plate / Gamble housing through bolts (Alpha1 Gen1)

    So I am replacing the rubber gaskets on the 2 lower through bolts. The bolt head has a square to index the bolt and small gasket around it. They seems to be lacking in substance. Wondering if others put sealant on them. I was thinking a very thin coating should do it On both side of the gasket...
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    350 Mag / Alpha One / Gen One Gimbal ring bearing seals

    I have the SELOC Sterndrive book for Mercruiser. It’s telling me to install the lower gimbal ring bearing seals “Both” facing up. This doesn’t seem right to me. Between the seals is a needle bearing that has a Zerk fitting. The only thing I can think of is the bottom seal will act like a relief...
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    350 Mag / Alpha One / Gen One water transfer tube

    Hi all, I’m in the process of rebuilding my outdrive. I’m removing the bulkhead water transfer tube to replace the seal so I removed the rubber bushing seal, that was in compression from two bolts and a plate, for the copper tube that goes through the gimbal housing. The coolant travels from the...
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    1987 Sea Ray Pachanga 2, 22ft

    Hi, newbie here. I had this boat awhile and hasn't seen much water. I'm fixin to get after it again by replacing the upper and lower outdrive. It has 350 Mag Mercruiser and what I'm sure is a Alpha One. I want to make sure I buy the correct gear ratio which I believe is the 1:47 and the right...
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