The Mystery Of Why The 1960-1962 Ford 292 Y-Block V8 Was Such A Slug Is Finally Solved!

Ford’s Y-block V8 (1954-1964) was never going to go down in history as an inherently lively engine, especially compared to the Chevy small block V8. It’s easy to rag on the Y-Block, given how Ford literally handed the V8 crown to Chevy. But Ford realized the mistake it had made in the severe limitations of the Y-block’s performance potential and quickly made improvements to its performance in 1955 – 1957.

In 1958, Ford’s new FE V8 arrived and took over the role as the performance V8 in Ford’s engine lineup, and the 292 Y-block became the standard base V8. But somehow its performance reverted drastically after 1959. Period vintage reviews had the 1960-1962 Fords with the 292 lumbering from 0-60 in between 16 and 18 seconds! That’s slower than most six cylinder cars of the time; Chevy and Mopar small V8s did it in 10-12 seconds. What happened?

The mystery has finally been solved.

 

The Y-block gets its name from the deep skirts in its block that extend well below the center of the crankshaft. This and other aspects of the Y-block are actually rather similar to the Ford flathead V8, so clearly Ford wasn’t willing to break the mold with its new ohv V8s. The result is a very beefy block and wide heads which amounted to a complete engine weight of approximately 625 lbs. As a frame of reference, the “Windsor” 289 V8 that replaced the Y Block and shared the same bore spacing weighed in at 506 lbs. The miracle of a more modern design without all that deep skirting and thin wall casting.

Unfortunately the Y Block suffered from a lack of oil flow up to the cylinder heads and to the rocker arms, spoiling an otherwise reputation for being a rugged engine. This can be remedied with enlarged oil passages and the use of modern detergent oil, but in its day it was a pretty serious defect that dinged its reputation.

The most unusual aspect of the Ford Y-block cylinder head is its intake porting, with the ports being stacked vertically on top of each other at the point where they met the intake manifold. This somewhat convoluted porting inherently reduced its breathing efficiency and made it difficult to improve upon. More on that a bit further down.

 

One might well wonder why Ford didn’t more closely imitate GM’s significantly more advanced new 1949 Cadillac (above)and Oldsmobile V8s, with their relatively lighter blocks (given their larger displacement), deeply skirted “slipper” pistons, and most significantly, their cylinder head design, which had much more efficient porting, valve size and combustion chamber design. Ford eventually saw the error of its ways and more closely followed GM’s architecture with the FE V8 of 1958.

Ford had started developing a new family of ohv V8 engines already some years earlier, and the architecturally-similar Lincoln Y-Block V8 (truck version above) had arrived back in 1951. It did have more conventional intake porting, but it’s clear in comparing the ports to those of the Cadillac that they were smaller. This family of Y-Block V8s was never going to be known for its intrinsic good breathing.

Here’s a snippet from a 1968 Hot Rod magazine article, the same one that finally solved the mystery of the very sluggish ’60-’62 version of the 292:

The Y-block Ford heads are cursed with relatively poor combustion chamber design since the intake valve is severely shrouded. Larger valves may be installed but serves mainly to increase breathing problems. 

It makes no bones about the inherent limitations of the Y-block heads, even the later 312 heads with larger valves. And we’re getting closer to solving the mystery.

Here’s a chart of all of the passenger car Ford Y-blocks (truck 292s were built through 1964). There was also a 1954 Mercury 256 CID version rated at 161 hp; it was also available in 1954 Ford police pursuit cars. As can be seen, output increased substantially starting in 1955 and peaked in 1957, with the supercharged 312 rated at 300 hp. It should be noted that this Paxton supercharged 312 was a very limited production engine, with only 975 installed in full size Fords and 211 in the Thunderbird. Supercharging is an easy remedy for poorly-breathing heads. As a point of comparison, Chevy’s significantly smaller displacement but naturally aspirated 283 V8 was rated at 283 (1957) and 290 hp (1958), reflecting its exceptionally well-breathing heads.

These improvements in the performance of the 292 and 312 Y-Blocks were the result of improved cylinder heads starting in 1955, when the intake valves were increased from a paltry 1.647″ to 1.780″, and the ports were also improved some, all of which also supported more carburation and aggressive camshafts. The highest output naturally aspirated 312 peaked at 215 hp, although there were some over-the-counter parts that were NASCAR-approved and resulted in a 230 hp rating.

The result of this significantly increased displacement and better heads was that Ford suddenly had a competitive stock car racer; Curtis Turner was the only driver to ever win 25 BASCAR races in one season. Chevy’s V8 was still at 265 cubic inches in ’56, so the old (and not very accurate) saw “there’s no replacement for displacement” rang true in 1956 for Ford. But not for long…

In 1957, the Y-block heads were improved again, with intake vales now increased to 1.9250″ (exhaust valves were never increased from the 1.510″ size in 1954). These allowed further increases in peak power, with a 245 hp rating for the dual-quad carb 312. Again, with special parts, that could be upped to 265, and according to some sources, even 280 hp.  But that was not enough to compensate for the heavier new body and most importantly, Chevy’s enlarged 283 V8. In 1957 Chevy’s 283 “Black Widows” would dominate NASCAR.

It might be worth pointing out that the Chevy 265 and 283 heads never really changed during their whole long era (except for compression ratios), with the same 1.72″ intake valves; the only exception being the rare 1961 315 hp FI 283, which had larger 1.92″ intakes.

As the chart of Y-block cylinder heads above shows, in 1957 the lowly 272 and 292 also got these improved heads, which upped their base (two barrel carb) power to 190 and 206 hp, considerably more than Chevrolet’s vase V8s, with 162 hp for the 265 and 185 hp for the 283. And in 1958, with the advent of the new FE V8, the 272 was dropped and the base V8 was now the 205 hp 292. In 1959, its rating was dropped to 200 hp.

But it’s in 1960 that our mystery begins, with a drop in the 292’s rating to 185, dropping again to 175 hp in 1961 and once again to 170 hp in 1962. The timing was not good, as the 1960-up big Fords were just that: big and heavy. Performance was bound to drop substantially, but vintage review times in the 16-18 second range were really rather abysmal for a base V8 full-size car for the times.

So let’s take a look at how all of this was reflected in actual 0-60 times from various vintage reviews, with comparisons to its main rival, the Chevrolet. Not all these comparisons are directly comparable in terms of horsepower and transmissions, but it does give a general picture.

 

The improvements in 1955-1957 are very apparent. The 1954 started out a bit sluggish, but then it had no real competition in the low-price field. All that changed, especially at Chevrolet, where its new V8 quickly established itself as the one to beat.

But the real eye-opener here are the 0-60 times for the 1961 Fords: these numbers are solidly in full-size car six cylinder territory; a ’66 Chevy Bel Air six with the Powerglide managed that in 15.5 seconds. And just about every compact and mid-size six was quicker yet. performance was right back to what it had been in 1954, with the (unimproved) 239 cubic inch version.

Here’s what M/T had to say about the ’61:

The 175-hp car scored the poorest acceleration time of any new V-8 tested, while reserve power for passing proved extremely limited.”

And in that comparison of the ’61 Ford, Chevy and (full size) Dodge Dart, the Ford also had the worst fuel economy (12-16 mpg).

What gives?

I discovered the reason buried in the various charts of that 1968 Hot Rod article. There it is: for 1960-1962, Ford reverted to the heads from the 1954 239 Y-block, with its tiny 1.647″ intake valves. No wonder it was so constipated. Why Ford did this is a good question; the most likely answer is that it thought it would enhance its fuel economy, an issue that had become more of an issue with buyers during the 1958-1961 recession period. Well, obviously, that wasn’t the case, certainly not in M/T’s comparison, where the vastly quicker Dart ran the 0-60 in 11.5 seconds and still got a much better 15-19 mpg.

There was another not-insignificant factor: starting in 1959, the 292 V8 was saddled with the highly mediocre new two-speed Fordomatic. Why this new transmission consistently underperformed Chevy’s venerable 2-speed Powerglide is also a mystery, one I haven’t yet solved, and may never. It just wasn’t very good, with lazy shifts and poor efficiency. How much the poor performance of these 1960-1962 Fords with the 292 can be attributed to the poor breathing heads of the engine or the sluggish transmission is not easy to say, but clearly the combination of the two was deadly…slow.

Things improved starting in 1963, with the new 289 V8 and the improved 3-speed Cruiseomatic, although that unit was still implicated with sluggish shifting and inefficiency.

Although the Y-Block is often maligned beyond what it deserves, the 1960-1962 version really was a veritable stone. There’s no way to get around that, except to pass it with just about any other car of its time.

 

Postscript: modern hot rodders have been able to unlock very high power outputs (300+ hp) from the Y-block thanks to expensive custom designed aluminum heads and other clever tricks, so it’s not safe to assume they’re all slugs anymore. And after the Y-block was shipped off to Argentina (see link below), it eventually got some new heads that were essentially adaptations of the Windsor heads.

Related CC reading:

CC Global: Argentine Ford Fairlane With 292 V8 – The Y-Block Gets A High-Performance Second Act In Argentina by me

Automotive History: 1959-1963 Two-Speed Ford-O-Matic – Ford Builds an Inferior Powerglide by me

Vintage R&T Road Test: 1956 Chevrolet 210 205 HP – “The Hot One Is Even Hotter” by me

Vintage Reviews: Motor Trend’s 1957 New Car Issue – Road Testing The Low Priced Three by GN

Vintage Car Life Road Test: 1966 Chevrolet Bel Air Six With Powerglide – Just How Slow Was It? by me