Re: MARINE INBOARD VS. REGULAR SMALL BLOCK
One thing to remember is if it's raw water-cooled then you will need to use brass freeze plugs. Also you would really need to watch your sustained RPM's being a 383 has such a long stroke (same stroke as a SB 400). My dad put a couple of small block 400's in a 31ft Baha fishing boat and they held up pretty good but the guy seldom ran them over 3200 RPMs.
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Steve B
1978 23ft SeaCraft Seavette 502HP ZZ502 Mercruiser TRS Drive-Sold-UGH!
1998 28ft Carolina Classic 7.4 Volvo Penta Duo Prop
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