D4TE-9510-AS: 4V Holley for 74 390. I have it on the 74 SCS. I do know it was not stock on this truck however. They must have offered it on something in 1974.

 

74 SCS could have had the 390 4V, since it wasn't an F100.
According to this scanned 74 brochure, the 390 4V was "optional F250/350 2wd", while the 390 2V was listed as "optional F100 2wd".
Page_14

 

And, who knows what the dealer installed for the buyer.

While it is not anywhere near the same thing, I would have thought my 2001 F250 came with regular hose clamps on the radiator hoses from the factory. Without an OASIS report that says the dealer replaced the broken stock clamps (that were known to break), under warranty, I would never have thought differently.

With other trucks, someone test-drove it, the engine started knocking, and the dealer threw whatever they had laying around in it and charged Ford.

Or a whole bunch of other reasons something "ain't stock".

 

There were only 3 FEs factory installed in trucks 352, 360, & 390.

410s were only installed in Mercurys and only for 2 years.


After market or after purchase, the gates are wide open as to what could have been installed.




John

 

Yeah, I know that's the "official" story from Ford. Yet, I've heard of a few people who swear they had a 410 "factory" truck, but none have been able to prove "beyond a reasonable doubt" (sound familiar?) by showing proof they bought the vehicle new, and that it was indeed a 410. I met one guy who claimed his granpa's truck had a 410, and showed me the "410" on the pistons. Crank was a 390 part, but he wouldn't believe anyone, and stuck to his story.....

 

While I'm aware that Ford used the 410 pistons to lower the comp ratio on 390's for trucks, this truck had the original engine in it when I bought it used in the early 80's. I drove it a year or so then it blew the rear main seal and soaked the clutch, so I pulled the engine to replace it with the GT390 from my 67 Stang. I clearly remember I was going to use the truck's flywheel on the GT390, because it (the GT motor)used the bigger clutch disc, then found the counterweight on the 410's flywheel, so I ended up using the GT390 wheel and clutch set. This wasn't the only time I discovered a different displacement FE, the other was a 410 pulled from a Merc, again, clearly the original motor. Six months after bringin it home I pulled it apart only to find a 428 instead. I've run across quite a few anomolys in taking Fords apart, enough to know to "never say never" when it comes to what they put into any vehicle at the factory.

 

See, the only thing you're forgeting is, the 428 was in production(industrial motors) well into the early 70's, and as they used the same crank, it's not at all impossible to think that more than a few 428 cranks found their way into 390 blocks, especially when it used the same pistons as the 410, if for no other reason than to use up parts. I've been around Fords long enough to know how to spot an "unoriginal" engine in a vehicle. The 410 I found was indeed original to that truck. It's also easy to learn to spot the tell-tales when it comes to parts having been replaced on an engine. That truck is long gone, and I didn't have reason to document the engine in the truck at the time, so all you have is my word, take it as you will. I've never been one to go around making wild exagerations, if I was then I'd swear to it having a something like a Cammer in it rather than a lowly 410.

 

I suppose it is possible. I heard that many "428" mustangs were actually shipped with a 390, due to the lack of enough 428s to fill all the orders.
However, without taking delivery directly from the dealer, there's no way to really know what was done in the 10+ years this vehicle was in someone else's possession.

 

Boy did I open up a can of worms!

Baddad457, thanks for the advice on the 500cfm Holley. I think I'll keep this carb in place and look into changing it as you've outlined.

 

In the FE forum, everything is a potential can of worms

 

Very true!

At least the main question was addressed *before* the topic went a hair off course, and there's no agruing or hurtful undertones in the discussion. These *are* a rarity in the FE forum.......

 

I've been trying, I really have

 

There is when you know how to spot non stock parts on an engine, now just talking about waterpumps and such, but the small things like hose clamps and bolts and gaskets, or things being out of place. I know there will always be doubters to such things, I know what I've encountered, and that's all that matters to me.