Hi fellow 60's ford truck guys. I am searching for a 351 Windsor and I was wondering which vehicles maybe came standard with them? If I were to find one in an old vehicle, is there an easy way to identify it, or where is it stamped on the block?

 

it is stamped under the intake in the lifter valley.

the easiest way to tell is the width of the intake. i beleive a 302 is 7 in at the end rails, and a 351w is 9 in at the end rails.

also, and the way i tell, the lower t stat housing bolt is up where you can get a socket on it on a 351, 302 you have to use a wrench.

jim

 

well the best way for me is to look at the manifold. in a 351w it is about 2 inches wider than a 302... and the harmonic balancer is thinner.

 

oh also a lot of 70 vans came stock with 351w and also mostly came with small block c6's!

 

And the t-stat housing is on the manifold (I remember "w" has a "wet" manifold) as opposed to being dumped in on top of the water pump housing.

--Mike

 

Thanks for the info. Very helpful.

 

My 1st car had one. look for 74 Galixey 500's
I found one the other day in a 78 f150 but it's junk.

 

The head bolts are bigger on the 351w also. I found them to be in most of the vans from the 80's.

 

wait til you compare the huge block of the 352 to the wimpy tiny block of the 351 its a world of difference.=) TOTALLY FE BIAS!

 

Wait a minute, Why would he want extra FE weight & limited transmission choice for 1 measley cubic inch gained? In addition why would he want to sacrafice 25-30 hp on driving an FE Valve train with its' rocker shafts & heavier rocker arms, or am I missing something I'm not aware of here?

Also if he is going to put up with extra weight, why not put a 460 in there & be done with it? That way at least for less added weight he would gain enough torque he could drag a couple FE powered trucks along behind him, while they were going backwards.

FWIW, the idea behind FoMoCos' Nodular casting technique at their Windsor Foundry was to eliminate weight. Cube for cube & pound for pound a 351W may be smaller and lighter than an FE, but it also makes more power with less mass, faster, with better economy [read mpg]. Dinosaurs were huge too but insects survived. so I must respectfully disagree with any notion that 351Ws have a "wimpy block", or FEs are somehow superior to later technologies. It "just ain't so", although they are nostalgic.

I agree with consensus on intake 351W being 2" wider than 260-289 & 302, as being the quickest way to spot a 351W. I also concur with E series [Vans] as being a most common source of 351Ws from late 70s through late 80's. But I'm not so sure about balancer being thinner. Since Windsors are externally balanced almost all I can recall had thicker balancers than earlier small Windsor nodular cast engines. If & when you do get your 351W, be sure to get flywheel or flex plate that came on it keeping your balance true. A 289 -302 - 5.0L flywheel/ flex plate will bolt up to a 351, but it will not balance 351W engines right.

You may want to double check where the oilpan drain plug is located on the 351W you get. In some cases the drain bung ends up over the wide engine crossmember of 65 & later, F series, 4X2WDs making oil changes a nasty messy chore. In this case I'd install a 2nd drain bung in a more advantageous position, like the rear of front sump hump. Also try to grab truck exhaust manifolds, or be ready to run truck headers. You may run into an interference issue with some Passenger car manifolds on the swap.

Also there were some 351W heads in 1968 & 69 that had studded rocker arms & screw in studs rather than pedastal style rockers. If you have designe on going roller these are the head to have for the best performance because they were adjustable & have better ports, slightly bigger valves & better combustion chambers. They were a 4V - premium fuel engine.

Good choice, happy hunting, & and good luck.
FBp

 

How did I know where this was going...

--Mike

 

A sbf has 6 bolt valve covers. Look for the head to block joint-on the 289/302 the joint will be even with the top edge of the timing cover. The 351W will have the joint 1/2 inch above the top edge of the timing cover.

This is due to the 1/2 higher deck height of the 351W.

Putt

 

Thanks for the info again. Very good stuff. Hope I didn't cause a fight!

 

ouch! LOL don't let the guys over on the FE forum hear you say that pete! as far as the flywheel and balancer, everybody is mixed up including pete. the flywheel and balancers are interchangeable between 289 302 and 351W as long as it is the same balance engine (28 vs 52 oz) in other words a 69 302 flywheel and balancer will fit a 69 351W as is without change but if a 69 flywheel is used on an 85 engine it will have to be rebalanced. as a matter of fact the 69-81 (+/-) 351W originally used a flywheel marked C7TE-A (part number C6TE-6375-C) and is an original 289 bronco part! the balancer is thinner on a 69 351W than it is on a 68 or 69 289/302 but the balance is still the same so they are interchangeable. the 70-81 (+/-) balancer is the same between a 302 and a 351W unless you have an early van engine because those still used the 3 bolt pulleys into the 70's while trucks and cars went to 4 bolt pulleys. as a matter of fact, ford even recomended the HiPo 289 balancer for use on the windsor as a performance upgrade in the ford performance catalog. hawkrod

 

289/302 and 351 windsor used the same balance flywheels up til 1985. after that the 302 went to 52oz balance and the 351 stayed at 28oz. don't know why, somebody's bright idea i guess.

as to the 352 v. 351, i have a 65 f250 4x4 with a 352 in it. tell me, who wouldn't want a motor that gets half the gas mileage, weighs a hundred pounds more and has fewer aftermarket parts available(cheap)? i wouldn't trade mine for anything though, except maybe a nice stout 410 or 427 sohc(hehehehe!)