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Author
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Topic: 351W transplant
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Slow65Stang
Gearhead Posts: 113
From: Reading, PA, USA
Registered: Feb 2002
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posted 02-27-2002 11:05 AM
   
Just a few ?'s about transplating a 69 351W into my 65 Coupe. The car is already a 289 car with a dymanic S/S c-4 and a 8in with 4.11 trac lok. Aside from needing a bit more hood clearance due to taller deck height what other mods will i need to do...
Will the 289 Motor mounts work??? and if not will a set of 351w mounts out of the 69 cougar donor car tranplant into my coupe? Thanks
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70 Pony
Gearhead Posts: 1783
From: Glenmoore, PA, USA
Registered: Jan 2000
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posted 02-27-2002 01:42 PM
Well...let we warn you, I'm no mechanic, but I'm sure someone much more knowledgeable will respond.
You'll need a new oil pan, a 351 intake manifold, a 351 distributor, a 351 cam unless you want to stick with the 289 firing order which is different than the 351W.
If you run headers, you'll probably need 351 headers although HEDMAN makes a set of headers that fit a 302 or 351W.
As far as the motor mounts, I'm not sure, but while you have the motor out I think it's a good idea to replace them anyway....
By the way...WELCOME...WE'RE NEIGHBORS...Check out my car on the member's page and look for me at Maple Grove on Friday Nights, when they open up.------------------
EDDIE D
Resto Mod '70 Sport Roof
Arrest Me Red
'02 GT, Torch Red
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Slow65Stang
Gearhead Posts: 113
From: Reading, PA, USA
Registered: Feb 2002
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posted 02-27-2002 03:07 PM
i have all the windsor stuff on the shelf, the main thing i was really concerned about was the motor mounts...I still need to get a pic of my pony up on the member page. Ill go do that right now...Ill definitly see ya at Maple Grove. If all goes well my brother and i are gonna run points this year in street class...im runnin the 65, he's runnin his 01 Zinc Yellow GT. So far the best we got outta the '01 is 14.101 @ 98.05 MPH...not bad only putting a Mac cold air induction on it...(the car was left in drive for that run. Im sure we'll see 14.0's or 13.9 shifting it through the gears) Thanks for the help, its always appreciated.
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Moneymaker
Administrator Posts: 17471
From: Lyons, IL, USA
Registered: May 99
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posted 02-27-2002 05:29 PM
66 and up Mustang motor and frame mounts will work or the Cougar mounts with some Mustang frame mounts. You will need some 6208 Hooker (or equivlant) headers. Pulleys will work too!  ------------------
Alex Denysenko
Co-Administrator and Moderator/ non 65-66 Mustang owner sensitivity co-ordinator NHRA/IHRA/SRA member
NHRA and IHRA SS/LA National Record Holder '00, '01, & '02
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28
Part time secret agent license #0089
US Class Nationals link
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65351w
Journeyman Posts: 4
From: Bellevue Ne US
Registered: Feb 2002
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posted 02-27-2002 06:39 PM
The 351w will fit right in to the 65 with no mods. You can use the motor mounts from the 289, you will not have any hood clearance problems unless your intake is a high rise, the 351w is only 1 inch taller and 1 inch wider than the 289/302.You will not need a new oil pan for this trans plant. You will have to reuse the exhaust manifolds from the 289 unless you want to order headers for the conversion, you can get them from Mustangs Plus for $189.The 351 flywheel will not work with the C-4 diameter is to big for bellhousing, you will need to reuse the 289 flywheel. The water pump hose will be on the drivers side of the 351 not the passangerside like the 289, All this info is first hand, I am running a 351w in my 65 coupe. If you have any other questions about this or like a pic of what it will look like my email is [email protected].------------------
65 coupe,351w 30over, Edlebrock RPM cam,Performer intake,T-5
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Dave_C
Gearhead Posts: 641
From: Gadsden, Al
Registered: Aug 99
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posted 02-27-2002 07:08 PM
quote:
Originally posted by 65351w:
The water pump hose will be on the drivers side of the 351 not the passangerside like the 289,
Not in this case. He said the 351W is a 69 model. These have the lower hose on the passenger side just like the 289. The change over was made for the 1970 model year. I have a 69, it still has a passenger side lower. Later, David Cole
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Fastymz
Moderator Posts: 8189
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 02-27-2002 07:09 PM
Ok well on my 1969 351w I used the old 289 motor mounts,and my 69 351w had the water pump hose is on the same side as my 289 so nothing to change there.I used the 1969 351w oil pan too.I did have to get a new bracket for my alternator. I used the hedmen headers shortys not the best but they were cheap and fit good.Summit racing $99.00.I did go to an RPM intake and a 1inch four hole spacer and a K&N 14+5 Air cleaner,and yes that was to much for the stock hood.
SCOOP
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65 coupe,1969-351w,RPM intake,Carter625,shorty headers,2.5 exhaust, Flowmasters,C4,open 8" 2:80,Big Boss 429 hood scoop,Crager SS,Black Suede.
MEM#1240 https://mustangsandmore.com/ubb/Fastymz.html
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65351w
Journeyman Posts: 4
From: Bellevue Ne US
Registered: Feb 2002
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posted 02-27-2002 07:36 PM
The 351 I have is a 78 so the hose maybe on the same side as the 289 on a 69 351, the hood clearance problem was because the Perfromer RPM is a high rise intake then adding the spacer made the carb sit higher, the problem was caused by the spacer not the intake.
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steve'66
Gearhead Posts: 5272
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 02-27-2002 08:19 PM
A 351w w/ an rpm intake will clear the stock hood in a 65/66 if you don't use a spacer and use a drop base air filter. SteveW
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Fastymz
Moderator Posts: 8189
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 02-27-2002 09:18 PM
quote:
Originally posted by steve'66:
A 351w w/ an rpm intake will clear the stock hood in a 65/66 if you don't use a spacer and use a drop base air filter. SteveW
Yes it WILL my did fine, until I went to the 14x5 air cleaner even with the drop base it did not clear but I wanted a scoop anyways.
SCOOP
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65 coupe,1969-351w,RPM intake,Carter625,shorty headers,2.5 exhaust, Flowmasters,C4,open 8" 2:80,Big Boss 429 hood scoop,Crager SS,Black Suede.
MEM#1240 https://mustangsandmore.com/ubb/Fastymz.html
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Fastymz
Moderator Posts: 8189
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 02-27-2002 09:19 PM
quote:
Originally posted by 65351w:
The 351 I have is a 78 so the hose maybe on the same side as the 289 on a 69 351, the hood clearance problem was because the Perfromer RPM is a high rise intake then adding the spacer made the carb sit higher, the problem was caused by the spacer not the intake.
The spacer was part of it and the air cleaner did help either.The RPM really came to life with the 1" four spacer. SCOOP
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65 coupe,1969-351w,RPM intake,Carter625,shorty headers,2.5 exhaust, Flowmasters,C4,open 8" 2:80,Big Boss 429 hood scoop,Crager SS,Black Suede.
MEM#1240 https://mustangsandmore.com/ubb/Fastymz.html
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Slow65Stang
Gearhead Posts: 113
From: Reading, PA, USA
Registered: Feb 2002
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posted 02-28-2002 12:52 PM
Thanks guys, very helpful....ill keep ya updated on the swap and any little annoyances i run into.
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RonnieT
Gearhead Posts: 456
From: Port Allen, La. 70767
Registered: Jun 99
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posted 03-01-2002 10:12 PM
Doesn't the 351 use a 50 oz weight on the flywheel were the 289 is a 28 oz? This could cause some vibration problems. If the transmission will not fit get the proper bellhousing for the 164 tooth flywheel the 351 uses.
quote:
Originally posted by 65351w:
The 351 flywheel will not work with the C-4 diameter is to big for bellhousing, you will need to reuse the 289 flywheel.
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Ronnie
69 mach1 351W-4V
70 Torino GT 351C-4v with a "shaker"
Mustangs and More Member #23
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Dave_C
Gearhead Posts: 641
From: Gadsden, Al
Registered: Aug 99
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posted 03-01-2002 10:38 PM
All 351's, regardless of year, are 28 oz/in imbalance. So are 289's. 302's are also 28 oz up until 1981 when they changed to 50 oz. The 351W never changed. The 289 will have a 28 oz 157 tooth flexplate. The 351W most likely has a 164 tooth 28 oz. Just simply swap the one from the 289 over to the 351. It would also work (but be more trouble) to use the 164 tooth flexplate from the 351 and get a larger bell housing for the C-4. Later, David Cole
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RonnieT
Gearhead Posts: 456
From: Port Allen, La. 70767
Registered: Jun 99
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posted 03-02-2002 12:17 AM
Thanks for the info Dave. I was thinking the 351W used the 50 oz weight like the late model 5.0 use. Remeber to swap the blockplate out also to the one for the smaller bellhousing.------------------
Ronnie
69 mach1 351W-4V
70 Torino GT 351C-4v with a "shaker"
Mustangs and More Member #23
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