Marine engine Q's

[dragogt]

I have a marine 351W engine that upon tear down doesn't make any sense.

It's a '74 block ... D4AE 6015 AA3 w/ a date code of April 14 '76 (6D14)

The crank is from a 289 stamped 1M haven't found any casting #'s yet. And has a 3 bolt balancer C9OE 62SD by the timing marks and 6316 cast into then face.

Rods from a 302 casting # is D6OE

Pistons are from a 351??? has 351W cast into the skirt and D3OE 6110A on the inside of the skirt.

Heads are a '75 model D5AE

the timing cover casting #'s are C9JE 6059 and has the built in pointer.

Main bearings say STD. but I haven't found any #'s yet.

WTF were they thinking, it's like somebody had a bunch of spare parts and just through them together. I didn't think a 289 crank would work in a 351 block.

 

[Mr. Stroker]

I tore apart a 2.3L ford ranger motor, and a 2.3L marine ford motor, Side by side. I went to swap cranks and i found that the marine crank journals were ALOT bigger than the regular ford crank...

 

[surewhynot]

That's odd. The 289 crank has alot less throw than a 351 crank.

 

[dragogt]

Ok I lied the crank says 7M instead of 1M like I thought the only other #'s I found on it are W.G8.60 or W.GS.60

I still have no freaking clue what it means I thought 351W cranks said 3M

 

[conanski]

The numbers don't tell you the whole story. There's no way a 351 block has a 289 crank and 302 rods, the main bearings are a lot bigger on the 351 so this crank would just wobble around in there. Are you positive you have a 351 and not a 302? How wide is the intake?

 

[dragogt]

Yep fo sho it's a W, intake is 11x21 measured behind the carb mount and from the T- stat housing.

Cast in the valley pan is D5JE 9425 EA along with 351 WCP 3

 

[DOHCmarauder]

I tore apart a 2.3L ford ranger motor, and a 2.3L marine ford motor, Side by side. I went to swap cranks and i found that the marine crank journals were ALOT bigger than the regular ford crank...

That was NOT a marine motor change.....Some 2.3's changed journal size at one point.


http://www.rebuiltautoengines.com/ford-bronco-articles.html

 

[DOHCmarauder]

Ok I lied the crank says 7M instead of 1M like I thought the only other #'s I found on it are W.G8.60 or W.GS.60

I still have no freaking clue what it means I thought 351W cranks said 3M

Google is your friend......


http://www.hiperformer.com/featured_engines/for_351wholb.html

 

[dragogt]

Eh I don't use Google, but looks like I may have to start, Cuz there it be.

 

[BKW]

Ok I lied the crank says 7M instead of 1M like I thought the only other #'s I found on it are W.G8.60 or W.GS.60

I still have no freaking clue what it means I thought 351W cranks said 3M

7M = D9AZ-6303-C / Fits 1973/79 351W / 1980/86 is 7MA

Marked with Ford engineering ID number: C9OE-E .. Harmonic Balancer = C9OZ-6316-A 1969 351W ONLY.

Casting numbers (c/n) don't mean diddly squat, because they cannot be cross referenced to actual part numbers.

Just because the c/n has a certain c/n prefix, that does not mean that's what the block was first used, or is the only year it was used.

Case in point, your supposed 1974 block was actually used 1973/78: D5OZ-6010-A.

The same 351W pistons were used 1973/79.

How do you know the rods are from a 302?

R U sure the timing cover is marked C9JE? J = industrial engine.

Look again, could it be C9UE?

If so, that's the timing cover used 1969/72 (essentally thru 1979, cuz Ford changed the part number). It's also the same as a 302 and late 1965's & 1966/68 289's.

The timing cover (undergoing several p/n changes) was used 1969/78 and on 1979's without EEC...this is not the timing cover you posted the ID number from, this is the one marked C9UE

 

[dragogt]

Tks Bill, for all the work you go through to look this stuff up.

 

[BKW]

Tks Bill, for all the work you go through to look this stuff up.

Bill is aka NumberDummy elsewhere.

If it was work, I wouldn't do it. In my twisted mind....this is fun.

 

[dragogt]

Here are the #'s off the Timing Cover in question.

 

[DOHCmarauder]

Eh I don't use Google, but looks like I may have to start, Cuz there it be.

And I got it a full hour before Bill.......



Quick trick to ID a 302/351 if you don't happen to have a tape measure.

The water pump "holes" on the 302 enter/exit at the top of the deck, DIRECTLY under the head(s).

There's a decent space on the 351. (about 1")

 

[dragogt]

I gotcha, like like the dizzy.

 

[BKW]

Looks like a U to me...the die used to make that mark is worn down/broken.

There's too much of a curve on the left side for that to be a J.

 

[flareside_thunder]

I don't know Bill kinda looks like a J to me.....but my eyes ain't that great anyways...my buddy had a W marine engine and i ciphered the number's off it....twas a puzzle too.so many different parts and numbers.......

 

[Truckin4life]

ah get er runnin, throw a 500 shot of naws at it and rebuild a 460 to replace it!

Nah jk aaron, still no luck on gettin this thing to run?

 

[dragogt]

Naw, I'm gonna steal your tdea and do a stroker.

 

[Truckin4life]

Hey thats MY idea!
Na jk...