I have a line on a 410 engine and was wondering if anyone knew what it was worth. It's complete but milage is unknown. It has been in a friends shop for years and will need a rebuild. What is the story on these motors? Are they good for a 4x4 truck?

 

They are great for 4X4 trucks. Mercury wanted more torque to move their very heavy cars so they threw a 428 crank into a 390 block.

 

Any idea what a complete core 410 is worth?...

 

That engine takes a 428 flywheel, be sure you get it, too. They can be hard to find and pricey.

 

The crank is worth about 400 bucks. Not sure about the flywheel. Everything else is pretty much worth about as much as stock 390 parts. Maybe 1000 bucks for a complete 410 that needs a rebuild.

 

You should be able to get it for $500.00. I don't think I'd give much more for it. It builds a lot of torque but it's not THAT much better than a 390. IMHO
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What years were they produced? How can i verify that it is a 410 from the outside? Any build codes that would do that? Is the crank snout or flywheel visably diferent on a 428/410...
Thanks again...

 

A Balance weight on the flexplate will tell you,were any 410's in front of manual transmissions? I thought they only went in parklanes, and that parklanes were auto tranny's??? no idea though, I got my 410 for $350-450 I think and it was complete in need of rebuild but your best bet is to check the flywheel if it's out of the vehicle, if it's in the vehicle and can be cranked pull a spark plug and check the stroke's travel.

 

I haven't been to see this motor yet so it may have a flex plate. What does the counter weight look like as apposed to a 360/390 weight?

 

only the flywheel/flexplate needs the counterweight. the same as a regular 428. The front dampner is the same as 390. If the flywheel/flexplate is missing, then If the owner is willing have him flip it over and pull the oil pan. The Crank will have a casting or forging number '1U'. It should be on one of the counterwieghts. this is the '66-'68 428 crank that Mercury used for their '66-'67 Fullsize cars.

The block and heads are regular 390 so nothing special there. I've seen a number of FE's in the junk yards with the belly riped open and only the crank is gone. I figure someone else found another 410......


Eric

 

Whoa, slow down here guys.....where did you get some of these ideas ? I think Jowilker is correct in that a 410 core would be worth 500$, tops. Everything but the crank is ordinary stuff. But as far as being 'not THAT much better than a 390', well, it is. About 100lbs-ft better. And lets stop with this story about mercury threw a 428 crank in their 390- WRONG ! Mercury developed the 3.98 stroke crank. They wanted to get extra torque for the large luxury barges of the day, and the 410 gave 80-100 lbs-ft of torque over a similar 390. Ford was busy developing the 427 Cammer and 482 starlifter engines, and paid them no attention to them at all. The 1U casting # is correct, it would be in 66-68 full size Mercs. It is not identifiable from the outside. Now about the flywheel or flexplate, don't worry about at all. They are available new for the same price as 390 gear.Try Pioneer for flexplates and McLoed for flywheels. If your shop doesn't know how to order the right one, just get the regular 390 unit. Your machinist can balnce it to work fine. ( You are having the rebuild balnced, aren't you ?) After Merc did well with the 410, some Ford dealers started installing the 410 crank in 406 blocks (makes 428 inches) and dropping 427LR heads on the engine- that is how the 428CJ engine was born. Pressure from dealers and HotRod magazine finally prompted Ford to offer the engine as a production item. C'mon now, am I the only guy who remembers this stuff ? DF

 

Hey guys,Im new too this site but, have enjoyed reading all of your letters,quotes,and information.I bought, 67 mercury marauder 410 a couple of years ago and installed it in my 71 F-100, A REAL GET UP AND GO IF YOU KNOW WHAT I MEAN!.Lately I've noticed a little whiteish blueish smoke coming out the drivers side tail pipe when I back off or down shift,took a compresson test, all good but #5, about 30 psi, add oil didnt come up,also, got on it a while ago and oil pressure dropped way down and heard knocking,sounded like it was on top,not lower end,any ideas? Glad I found this fourm

 

It sounds as if you have a burnt exhaust valve. The oil pressure deal could be a few things. Most likely would be that your pump bypass is stuck open. I thought the CJ heads were modeled from medium risers DF?

 

Cobra jet heads are Low Riser heads in disguise.

You would notice a huge difference between a MR and CJ head.

Not to mention the combustion chambers.

The High Riser is even more noticeable as you can nearly shove your fist into the intake port.

Tunnel ports are the highest on "cool" factor with the intake manifold runners having tubes bisecting the ports for the pushrods.

Very cool, and unbelievably it doesn't harm port flow that much.

As for the 410, I know of a Cougar that was delivered with one factory installed.

If I remember right, original 428 (1966-67) were not externally balance, but CJs are flexplate balanced and SCJ have both the flexplate and dampner externally balanced (LeMans rods were heavy)

Josh

 

(snip!) >...After
>Merc did well with the 410, some Ford dealers started
>installing the 410 crank in 406 blocks (makes 428 inches)
>and dropping 427LR heads on the engine- that is how the
>428CJ engine was born. Pressure from dealers and HotRod
>magazine finally prompted Ford to offer the engine as a
>production item.

Makes you wonder why those dealers didn't swap the 410 crank into the 427.