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1978 Engine Identification

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Old Mar 15, 2023 | 07:50 AM
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1978 Engine Identification

Hey everyone, looking for some help identifying the engine in this 78 F150. Owner says a 429 was swapped in a while back but didn’t have much more information on that.

Check out some of the photos, have a picture of the stamping on the heads.

Any help is appreciated, thank you.





 
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Old Mar 15, 2023 | 08:07 AM
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To help ID the engine.
351C/M/400 335 series: 8 bolts in rectangular valve covers. Timing chain housing is part of block. Thermostat housing on block. Exhaust bolt holes diagonal.
351M/400 335 series: intake is 12.7" wide the 351C is narrow. The 351M and 400 are identical externally, only internal parts examination can tell them apart.
351W/302/5.0L 6 bolts on trapezoidal valve covers. Thermostat housing on intake. Exhaust bolt holes horizontal.
429/460 385 series: 7 bolts in rectangular valve cover
352/360/390/427/428 FE series: Intake goes under valve covers.

At least is has the Saginaw power steering box AND it has a 2nd one? Very interesting was it a snow plow truck? What is the valve on the dvrs side inner fenderwell with the lines and the lever handle connected to? Was this a logging truck and does it have a big winch on the front?
 
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Old Mar 15, 2023 | 08:47 AM
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Originally Posted by 77&79F250
At least is has the Saginaw power steering box AND it has a 2nd one? Very interesting was it a snow plow truck? What is the valve on the dvrs side inner fenderwell with the lines and the lever handle connected to? Was this a logging truck and does it have a big winch on the front?
Yes it was a plow truck, still has it on the front but I am removing it and the accessories shortly. Needs a new starter and it’s harder to get parts up here, don’t wanna be sending it back if she doesn’t fit.

Will have to go and look at what you mentioned before, any idea on the part’s compatibility between the 429 and the 460?
 
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Old Mar 15, 2023 | 08:56 AM
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Mark and tag all the lines and save that complete set up. Bracketry, pump, lines ect...I am sure some one some where can use it.

Compatibility of starter for a 429/460 same same. AFAIK even a 351M-400 is the same starter. Now there is a difference in between a manual and auto trans starter.

"Starters & Distributorsif you have a 351M/400 pull off the factory distributor and the factory starter. Why? Because they will bolt on and work perfectly on your new 429/460 engine. If your 429/460 has a points-type distributor (most pre-1975 engines) then you should reuse your Bronco's Duraspark II electronic distributor.

One other neat little item you can use on your 429/460 is a 92-93 7.5L F-Series gear-reduction starter. They are smaller, weigh less, and have more torque than the standard full-size Ford 351M/400/429/460 starters. If you plan to install headers on your Bronco with a 429/460 engine, then the gear-reduction starter will give you a little more room to work with in a cramped engine compartment. You can purchase these starters from most auto parts stores. And do a bit of a rewire."

And some diagrams just in case.


I know you do not have this set up, but a good diagram of the Sag p/s pump.


 
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Old Mar 15, 2023 | 09:52 AM
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Originally Posted by 77&79F250
Mark and tag all the lines and save that complete set up. Bracketry, pump, lines ect...I am sure some one some where can use it.
That is the plan at the moment, likely will list it online for sale. It is a solid looking plow system.

Thanks for the info on the starter, will check it out.
 
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Old Mar 15, 2023 | 10:45 AM
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Originally Posted by sorrenti
........... any idea on the part’s compatibility between the 429 and the 460?
How to Rebuild Ford V-8 Engines: Monroe, Tom: 9780895860361: Amazon.com: Books How to Rebuild Ford V-8 Engines: Monroe, Tom: 9780895860361: Amazon.com: Books


My copy is 6th printing in 1980, but he goes into great depth on parts for 351C, 351M, 400, 429, 460 engines, interchanges, identifying, etc. I see the cover photo has changed, same info. I doubt much has changed.

It is a 429 or 460.
 
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Old Mar 15, 2023 | 08:42 PM
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If it hasn't been taken off the 429's had an engine tag under the bolt that holds the coil to intake.
 
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Old Mar 16, 2023 | 08:02 AM
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Originally Posted by tbear853
It is a 429 or 460.

This is the answer you're looking for.

As for yor parts interchange between 429/460 question, they're just like 351M/400s....everything is the same except pistons and crankshaft through 1978-ish (well, 1973-ish on 429s anyway). I say "-ish" due to model year cutoff dates.

After 79, the blocks and cranks changed on the 460 to an external balance so the flywheels, flexplates, and harmonic balancer spacers from those 460s won't work on a 429. I do not know if a 429 crankshaft will physically fit in a 79 and later block due to the cylinder bore protrusion into the crankcase for use with the externally-balanced crankshafts.

Good luck!
 
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