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Gray? Model 6-105

Old Marine Engine » Gray Marine Gas Engines - 4, 6, and 8 cylinder » Gray? Model 6-105 « Previous Next »

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Brian Gagnon
New member
Username: bgagnon

Post Number: 1
Registered: 09-2007
Posted on Wednesday, September 05, 2007 - 05:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have this engine in a 1946 Ventnor Utility boat. On the reverse gear is a Ventnor Motors plate but I believe they got their motors from Gray. The underside of the reverse gear housing shows 6-105. I see a listing for a Gray 6-104 but nothing for a 105. This engine also came with an aftermarket Knudson aluminum cylinder head and a triple downdraft intake manifold (in addition to a double updraft), also from Knudson out of Los Angeles. Are therte any numbers on the block casting or anywhere I can verify what this engine is? Anyone know anyhting about Knudson? Thanks very much.
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David Conwill
Member
Username: david_conwill

Post Number: 6
Registered: 05-2007
Posted on Wednesday, September 05, 2007 - 05:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Gosh, I don't know anything about this setup, but I'd sure love to see pictures. You'll see I have a post elsewhere about speed equipment for the Continental/Gray engines. I knew Edmunds made a head (and presumably an intake) for the Continental engines, but I've never heard of Knudson.

You might consider checking into the Kaiser-Frazer groups for information about your head and intake, if they're automotive parts that just happened to be used in a marine application it's possible those fellows have heard of them.

-Dave
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Lawrence T Wolfe
Senior Member
Username: larry_from_maryland

Post Number: 264
Registered: 07-2003


Posted on Thursday, September 06, 2007 - 12:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Look for CWC on the engine block.
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Brian Gagnon
New member
Username: bgagnon

Post Number: 2
Registered: 09-2007
Posted on Wednesday, November 14, 2007 - 07:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

I have found a number cast into the block. . . .K19311. Does this help identify the engine? I'm told it MIGHT be based on a 6 cylinder Ford flathead. Any help would be appreciated.

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