Is the Ford 429 and 460 the same block?
When it comes to Ford's legendary big-block engines, the 429 and 460 are often discussed together due to their similarities. However, while they share many characteristics, they are not entirely identical. In this article, we’ll explore the differences and similarities between these two iconic engines to help you better understand their design and applications.
Understanding the Ford 385 Series Engine Family
Both the Ford 429 and 460 engines belong to the 385 series, a family of big-block V8 engines produced by Ford from 1968 to 1997. These engines were designed to deliver high performance and durability, making them popular choices for muscle cars, trucks, and even industrial applications.
The 429 and 460 share the same basic architecture, including the block design, bore spacing, and cylinder head bolt patterns. However, there are key differences that set them apart.
Key Differences Between the Ford 429 and 460
While the 429 and 460 engines are closely related, they differ in the following ways:
- Displacement: The most obvious difference is the engine displacement. The 429 has a displacement of 429 cubic inches, while the 460 has a larger displacement of 460 cubic inches. This difference is achieved through variations in the crankshaft stroke.
- Crankshaft: The 429 uses a crankshaft with a shorter stroke (3.59 inches) compared to the 460, which has a longer stroke of 3.85 inches. This difference in stroke is what accounts for the increased displacement in the 460.
- Applications: The 429 was commonly used in performance-oriented vehicles, such as the Ford Mustang Boss 429 and other muscle cars. The 460, on the other hand, was often found in larger vehicles like trucks, full-size sedans, and motorhomes, where its additional torque was advantageous.
Are the Blocks Interchangeable?
Yes, the blocks of the 429 and 460 are essentially the same in terms of physical dimensions and mounting points. This means that many components, such as cylinder heads, intake manifolds, and accessories, are interchangeable between the two engines. However, the crankshaft and pistons are not interchangeable due to the difference in stroke length.
Conclusion
In summary, while the Ford 429 and 460 engines share the same block design and belong to the same engine family, they are not identical. The primary difference lies in the crankshaft stroke, which affects the displacement and intended applications of each engine. Whether you’re restoring a classic muscle car or working on a heavy-duty truck, understanding these differences can help you make informed decisions about parts and performance upgrades.
Frequently Asked Questions
Are Ford 429 and 460 connecting rods the same?
After 1978, 460 cranks were marked with a "3Y." The 429 and 460 use the same connecting rod. Standard 429/460 connecting rods have a "C8VE-A" forging number.
How much HP can a 429 make?
In truth, the 429 SCJ produced more like 425-450 horsepower and 480 lb-ft of torque, more on a par with the big-block Chevy. These numbers demonstrate what you can do with a 429 SCJ stocker. Imagine what this thing would do with aftermarket heads and induction along with a hot mechanical roller cam.
How much HP can a 460 big block handle?
In boosted applications, factory 460 blocks have been known to survive at 1,500-plus horsepower when upgraded with four-bolt main caps and filled with Hard Blok.
What is the best Ford big block?
Virtually every major domestic automaker had one in its stable, and the Ford 460 (385-series or Lima designation) was arguably the best of the breed.
What was the actual HP of a Boss 429?
375 HP
The Boss 429 engine used a single Holley four-barrel carburetor rated at 735 CFM mounted on an aluminum intake manifold. All these cars had 4-Speed Manual Transmissions and the Boss was rated very conservatively at 375 HP while actual output was believed to be well over 500 horsepower.
When did Ford stop making the 460 big block?
1997
Arriving on the scene in 1968 first as the 460 in Lincolns and as the 429 in other big Fords, this 385-series engine survived until 1997, a 30-year run that is astounding given Ford's proclivity for change.
Is a Ford 429 a big block?
In 1968, the 429 superseded the 427 as Ford's premier big-block, replacing the heavier FE-series. This new 385 series, dubbed the Lima, served a wide array of luxury sedan pickups thanks to its brute force at low rpm. These more pedestrian uses for big-blocks were great for the high-performance divisions, too.
Are a 429 and a 460 the same block?
The nice thing about this block is interchangeability. It can be a 429 or a 460 depending on which crankshaft is used. What's more, it can be stroked to more than 550ci. Boss 429 blocks were unique "C9AE-E" castings with screw-in freeze plugs and four-bolt main caps.
How much horsepower can you get out of a Ford 429?
In truth, the 429 SCJ produced more like 425-450 horsepower and 480 lb-ft of torque, more on a par with the big-block Chevy. These numbers demonstrate what you can do with a 429 SCJ stocker. Imagine what this thing would do with aftermarket heads and induction along with a hot mechanical roller cam.
Can you put Boss 429 heads on a 460?
Hot rodders discovered long ago that the Boss Hemi heads will bolt right up to a standard 429/460 block without much modification.
