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Tractor Talk Discussion Forum

351 Windsor serial numbers question

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jp88

10-11-2007 07:14:32




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Tore down the 351W last night.The block had these numbers casted in in it D4A-6015-AA 4 5B13.It came out of an old Ranchero.Would someone know what model engine this is and if this engine would be a good canadate for building.The rod bearings don't have any oversize stamped on them and have Ford part numbers on them.The pistons look to be standard also.Thanks




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02XLT4X4

10-11-2007 10:49:26




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 Re: 351 Windsor serial numbers question in reply to jp88, 10-11-2007 07:14:32  
A 400 crank will fit too, giving you a 400 smallblock. I don't recall what you use for rods however.



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molinebob

10-11-2007 10:21:49




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 Re: 351 Windsor serial numbers question in reply to jp88, 10-11-2007 07:14:32  
The 351M and the 400M heads will not fir the 351C, they are BIG block engines and the 351C is a small block. If you want to build the compresson up and get some horses out of it find a set of 262 V8 heads and use, They were used in teh early to late 60's



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02XLT4X4

10-12-2007 10:27:21




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 Re: 351 Windsor serial numbers question in reply to molinebob, 10-11-2007 10:21:49  
351M/400's are a reworked 351C with more deck height, they are technically smallblocks although the vast majority of them have a big block transmission bell housing boltpattern. The Boss 302 was a 302 with 351C heads, and 2 barrel 351C heads are a popular swap to 351M/400 engines...



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a4t1rat

10-11-2007 10:17:42




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 Re: 351 Windsor serial numbers question in reply to jp88, 10-11-2007 07:14:32  
351 windsor is a good engine. you can find four barrel heads for them or use some stout 289-302 heads. if ya really want to build a hot rod get some 4 barrel 351 C heads and put them on there. you will have to do some machining to make them work but not all that hard. water passages and steam holes need to be changed and pluged



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molinebob

10-11-2007 08:41:55




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 Re: 351 Windsor serial numbers question in reply to jp88, 10-11-2007 07:14:32  
That is the best small block engine ford ever built out side of the 289 and the 351c, But it is a very desirable engine I have one in my 1970 ford pickup that I am in the process of a frame off restoreation, You get more bang for your buck on these small blocks, You can really build it up with ease and oodles of horse power and torque out of them if you build them right, the only draw back is that the cam shafts like to break on them if you keep it stock. Good Luck on your quest!!

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Bob

10-11-2007 08:20:46




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 Re: 351 Windsor serial numbers question in reply to jp88, 10-11-2007 07:14:32  
IMHO, the casting date code of "5B13", along with the first two digits of the casting number (D4-first used in 1974), would be "1975, February 13TH" (Thursday).

The third character, "A", refers to the "Galaxie" or "full size" car line.

The next 4 digits further identify the engine. ("6000" series is "engine").

So, now you know it's birthday!

Somebody else is going to have to tell you if it's a desirable engine, or not!

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jp88

10-11-2007 09:55:13




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 Re: 351 Windsor serial numbers question in reply to Bob, 10-11-2007 08:20:46  
Thanks guys.We have a 79 F100 that would be a canadate for this engine.Now it has a tired 302 in it.I have heard of M block heads off a 351M/400 fitting on a 302 making a(Boss maybe)strong runner but would these heads work on the Windsor?If they would bolt on is there an intake that is made to fit this combo?Thanks again guys.



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Fordfarmer

10-11-2007 20:14:39




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 Re: 351 Windsor serial numbers question in reply to jp88, 10-11-2007 09:55:13  
There are some confliting opinions here. Nothing from any non-Winsor or Cleveland engine can swap onto it. Nearly any of the Windsor heads will work on the 351W, some better than others. If you have a good set of heads with the 351, just rebuild them. Cleveland heads can work, but are not a direct bolt-on. 351C, 351M and 400's are all in the same "335" engine family, and are technically small blocks, but some call them "mid-blocks" or "big small-blocks". I have a book detailing all this, but I can't think of th ename of it right now. "Ford Performance Engines" or something like that. I'll try to find it tomorrow.

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John P.

10-11-2007 18:23:36




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 Re: 351 Windsor serial numbers question in reply to jp88, 10-11-2007 09:55:13  
To avoid troubles you need a set of heads off a Windsor style block. The 289 and 302 heads have very poor airflow. The cheapest move is to get a set of the LATER Explorer 5.0 heads. These are improved versions of the GT40 heads that have the spark plugs angled for superior burn (more power and lower emissions) and being cast iron are pretty cheap.



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02XLT4X4

10-12-2007 10:29:08




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 Re: 351 Windsor serial numbers question in reply to John P., 10-11-2007 18:23:36  
Early 351W heads also flow well and still have decent compression, by '75 they had already started lowering it for emisions.



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John P.

10-12-2007 11:43:24




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 Re: 351 Windsor serial numbers question in reply to 02XLT4X4, 10-12-2007 10:29:08  
The best old 351W heads were the 1969 style. They flowed (@.500" valve lift) 183CFM on the intake and 118CFM on the exhaust side vs. the old 289/302 heads which flowed 165CFM on the intake and 107CFM on the exhaust. The GT40P heads flow 196CFM on the intake and 139CFM on the exhaust, which is actually better than the original 1993 Mustang Cobra heads which flowed 192CFM intake and 128CFM on their exhaust.

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John P.

10-11-2007 18:28:43




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 Re: 351 Windsor serial numbers question in reply to John P., 10-11-2007 18:23:36  
Just to clarify the above, these heads can be identified by the GT40P casting number (late 1997-2000)



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