Does anyone know of the 84 351w will fit into a 72 mustang that originally had a 302 w ? I sent a rod out the block the other day and want to put a 351 into it can anyone help me out
84 351w swap into a 72 mustang
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I have a 351w in one of mine. I used the motor mounts and exhaust designed for a 71-73 with a 302. The exhaust sits up a tad higher than it was designed, because the taller deck height of the 289/302 block.
The only other caveats I can think of would be from the different changes they made to the windsors over the years. There are different deck heights and dipstick locations. After the 70s oil crisis, the deck height was raised even higher, which would bring your exhaust up closer to the floor. And a dozen different timing covers, accessory pulley arrangements, etc. You'd want to make sure you put together a collection of parts with a front sump oil pan and all the water pump and accessories all fit and worked together.
The only other caveats I can think of would be from the different changes they made to the windsors over the years. There are different deck heights and dipstick locations. After the 70s oil crisis, the deck height was raised even higher, which would bring your exhaust up closer to the floor. And a dozen different timing covers, accessory pulley arrangements, etc. You'd want to make sure you put together a collection of parts with a front sump oil pan and all the water pump and accessories all fit and worked together.
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Could I use any of the parts from my 302 to solve any of those issues
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To start, you'll need a front sump pan and pickup for a 351W. If your block has the dipstick hole in the driver's side pan rail, it'll need to be blocked off.
The motor mounts and everything to do with the transmission will bolt right up.
You can use the 302 exhaust manifolds, but the Y-pipe (if you have single exhaust) may need to be modified to accommodate the extra width and height of the 351W.
I would take everything off the front of the 302, timing cover included and bolt it onto the 351W. That'll give you the correct dipstick location and ensure compatibility with the 302 pullies and accessory drives. Everything from the 302 should bolt up fine. If you have P/S, you will need to get a 351W power steering bracket. It's a one year only part used on the 1970 Mustangs, Cougars and full-size Fords. Stamped ID number is D0AA-3C511-D, part number is D0AZ-3C511-A
https://www.mustangtek.com/bracket/D0AA-3C511-D.html
NE Performance Mustang in NH shows they have one.
https://neperformancemustang.com/catalog/product_info.php?products_id=2083¤cy=USD
The motor mounts and everything to do with the transmission will bolt right up.
You can use the 302 exhaust manifolds, but the Y-pipe (if you have single exhaust) may need to be modified to accommodate the extra width and height of the 351W.
I would take everything off the front of the 302, timing cover included and bolt it onto the 351W. That'll give you the correct dipstick location and ensure compatibility with the 302 pullies and accessory drives. Everything from the 302 should bolt up fine. If you have P/S, you will need to get a 351W power steering bracket. It's a one year only part used on the 1970 Mustangs, Cougars and full-size Fords. Stamped ID number is D0AA-3C511-D, part number is D0AZ-3C511-A
https://www.mustangtek.com/bracket/D0AA-3C511-D.html
NE Performance Mustang in NH shows they have one.
https://neperformancemustang.com/catalog/product_info.php?products_id=2083¤cy=USD
I'm not 100% sure on all the details of the 80s 351w and which one specifically you have.
I want to say you could use the oil pan off your 302. We know that one fits in your mustang. If your 351w has the dipstick on the side by the exhaust, then use the dipstick from your 302 as well. You may also be in it for a new oil pump, pickup, and gasket if you're swapping pans.
I'm fairly certain your accessory brackets from the 302 will not work on the 351w. The taller deck height means the holes in the heads are in a different position relative to the water pump. Any bracket that mounts to both the water pump and the cylinder head will be different from a 302 to a 351w. If you've got a truck 351w, some of them had some really wide accessory brackets. They will usually fit in our mustangs, but look terrible. Check and see if your 351w has this bracket on the front of the passenger side head for the alternator. https://secure.cougarpartscatalog.com/d1oe-10a336-ab.html That may let you use some of your existing alternator mounting hardware.
Or, maybe now's the time you bite the bullet and go to aftermarket accessory brackets.
I'm about to put the CVF Racing set on mine.I would say plan on using the timing cover from the 302, since it has the dipstick hole and it is designed for the clockwise water pump. I would just buy a new water pump at this time, making sure it is clockwise rotation.
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