Chrysler 440 Cylinder Head Casting Numbers: Big Block Mopar
There are many reasons why you may want to know the casting numbers on a Mopar 440 engine. Let’s identify them for each year of production.
The following are the 440 cylinder head casting numbers:
- 2406516: 440 (1966)
- 2780915: 440 Standard and High Performance (1967)
- 2843906: 440 Standard and High Performance (1968-1970)
- 3462346: 440 Standard and High Performance (1971-1973)
- 3751213: 440 “Motor Home” Engine (1973)
- 3769902: 440 Standard and High Performance (1974)
- 3769975: 440 (1975)
- 4006452: 440 (1976-1978)
This article will explain where to find the casting numbers for each cylinder head and some general facts which you should know about the numbers.
How to Identify a Mopar 440 Cylinder Head
The best way to identify a Mopar 440 cylinder head is to check its casting numbers.
How to Find the Mopar 440 Cylinder Head Casting Number
The 440 casting numbers are a raised seven-digit number. They are typically found in two locations on the head.
- The first location would be on top of one of the intake runners. If the cylinder head is still bolted onto the block, the valve cover has to be removed to read this casting number.
- The second location is on the underside of the head on an intake runner. If the cylinder head is still bolted onto the block, the intake manifold has to be removed to read this casting number from underneath.
The casting number location of most RB-series big-block engines is similar to the 440.
440 Cylinder Head Casting Numbers
It’s important to note there are different variations of some of the casting numbers. One example is the 2780915 cylinder head. The same casting number in 1967 came with different size exhaust valves.
There may be slight changes in other heads from one year to the next even though they have the same casting number.
| Cylinder Head Casting Number | 440 Engine | Year |
| 2406516 | 440 Standard | 1966 |
| 2780915 | 440 Standard & HP | 1967 |
| 2843906 | 440 Standard & HP | 1968-1970 |
| 3462346 | 440 Standard & HP | 1971-1973 |
| 3751213 | 440 “Motor Home” | 1973 |
| 3769902 | 440 Standard & HP | 1974 |
| 3769975 | 440 Standard | 1975 |
| 4006452 | 440 Standard | 1976-1978 |
2406516 Cylinder Head Casting Number
Also known as the 516 heads, they were used on the 440 for 1966 only.
2780915 Cylinder Head Casting Number
Also known as the 915 heads, they were only used on the 440 in 1967. They came with the standard and high-performance 440.
2843906 Cylinder Head Casting Number
Also known as the 906 heads, they were used on all 440 engines for 1969 and 1970. They came with the standard and high-performance 440 engine.
3462346 Cylinder Head Casting Number
Also known as the 346 heads, they were used on all Mopar 440 engines in 1971-1973. They came on both the standard and 440 HP engines.
In 1973, some motor homes came with different heads which are next on the list.
3751213 Cylinder Head Casting Number
Heads with this casting number may be found on 440 engines installed into motor homes in 1973.
3769902 Cylinder Head Casting Number
Heads with this casting number were used for standard and high-performance 440 engines in 1974.
3769975 Cylinder Head Casting Number
The 975 cylinder heads were used on all 440 engines in 1975.
4006452 Cylinder Head Casting Number
Also known as the 452 heads, they were used on all Chrysler 440 engines from 1976-1978.
2951250 Cylinder Head Casting Number
I believe these cylinder heads came on some early 1968 383 two-barrel engines. They are very limited but similar to the 906 heads.
Some people reference them as a 440 head, which is why I mention it, but I haven’t found any evidence of that. Almost everybody who has pulled them off an unmolested engine, it’s always a 383 2-barrel. Older sources also confirm that.
Check out more Mopar cylinder head casting number articles:
If you have any questions about Mopar 440 cylinder heads information, send us an email found specifically on our contact page.
For the past 40 years, I’ve been studying and researching Mopar engines and cylinder heads like the 440 engines. I torqued my first 440 heads 38 years ago while building my first Mopar engine.
In addition to my personal experience, I’ve read books, articles, magazines, watched videos, attended seminars and spoken to other Mopar experts to expand my knowledge.
More Mopar 440 Engine Articles
Mopar 440 Head Bolt Torque Sequence and Torque Specs
The Deck Height of a Mopar 440: Plus How to Measure It
here is a curve-ball for you. about 3 weeks ago I bought a 1967 Plymouth fury 3 for the engine. I am restoring a 67 “H” code Barracuda 4 speed. the engine installed in the Fury is a 383. the 5th digit in the VIN for the engine is “H”, again, 383. the car is badged with Commando V8 on the right front fender. dual snorkel air cleaner. the ID pad reads – C 383 11 18 2. no other markings are on the pad. again, it is a 67 383. Today I was working on pulling the engine and for grins I pulled a valve cover to check the casting number. I expected to see “516”, however. the casting number is 2780915 – 5. yes “915” heads ! there is nothing about the car that shows any kind of modifications. performance or other wise. carb, intake and exhaust manifolds are stock with the appropriate casting numbers. the grease build-up, paint, and general condition all point to a stock engine. I have always understood that the “915” heads were installed on 67 440’s only. any thoughts about this. ?
in addition, the block has the mounting bosses, drilled and tapped for the A Body big block motor mounts. I am surprised to see this block in a “C” body. again, what are your thoughts ? thanks,
Hi Cal. Many people in the late 60s or early 70s installed 915 heads on their 383. Someone told me last year they bought a 67 Belvedere with a 383 4 barrel and 2 years later installed 915 heads onto it. 54 years later that engine, if it’s still around, probably appears to be a stock, unmolested engine (even though the heads were changed). I think that’s what you may have there. Even an old engine swap could appear as original. As far as I know 915s only came on the 440. By the way, the ’67 standard 440 also had them but with the smaller, 1.60, exhaust valve. If someone went through the trouble of changing the head, they probably put the larger 1.74″ valve head on. It’s the one from the ’67 440 HP engine. Those are my thoughts. Another thought, I just love the 1967 H code Barracuda! Nice car. What color is it going to be?