Lincoln Y-block V8 engine

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Lincoln Y-block V8
Manufacturer Ford Motor Company
Model years 1952-1963
Body and chassis
Class Big-block[1] OHV V8
Predecessor Flathead V8
Successor Ford MEL V8
Ford Super Duty engine

The Lincoln Y-block V8 engine was Ford's earliest OHV V8 engine, introduced by Lincoln in the 1952 model year.[2] Like the later and better-known but even more short-lived Ford Y-block engine, its block's deep skirts gave the block the appearance of the letter Y from the front.[3]

Its development was in response to the sales success of the competing Oldsmobile "Rocket" and Cadillac OHV V8 engines introduced in their respective 1949 models, as well as the need for larger and more powerful truck engines. The basic engine design was produced through 1963.[4] It was replaced by the newer MEL engine for car applications in 1958,[2] and was gradually replaced in heavy-duty truck applications by the larger Ford Super Duty engine, which had also been introduced in 1958.


A 279 cu in (4.6 L) version of the Lincoln Y-block was introduced for heavy-duty truck applications for one year only during the 1954 model year.[4] The engine had a bore of 3.562 in (90 mm) and a stroke of 3.500 in (89 mm).[4][5][6]


The 302 cu in (4.9 L) version of the Lincoln Y-block was used for heavy-duty truck applications from the 1955 through the 1963 model year.[4] The engine had a bore of 3.625 in (92 mm) and a stroke of 3.660 in (93 mm).[4][5][6] Power output was 196 hp (146 kW).[7] The engine was optional equipment on the Ford T-700 Series and standard equipment on the Ford F-750, C-750, and B-750 Series heavy-duty trucks.[7]


The first-generation Y-block was the 317 cu in (5.2 L), which replaced the undersquare 337 cu in (5.5 L) flathead V8 on all Lincolns in the 1952 model year and was produced through 1954's.[2] The 317 was oversquare, as was rapidly becoming the fashion, with a bore of 3.800 in (97 mm) and a stroke of 3.500 in (89 mm).[3][4][5][6] Power output was 160 hp (119 kW); higher compression, larger intake valves, a Holley four-barrel carburetor, improved intake and exhaust, and a more aggressive camshaft the next year increased it to 205 hp (153 kW).[3] The engine was unchanged in 1954 except for the vacuum advance mechanism.[3] These engines used the same solid valve lifters as Ford truck engines, and were to power the "Mexican Road Race Lincolns". The 317 was replaced by the 341 for automobile applications in the 1955 model year.[2] Like the 279, the 317 was also used in heavy-duty truck applications for the 1954 model year only.[4]

Lincolns powered by the 317 won the top four spots in the Stock Car category of the Pan American Road Race in both 1952 and 1953.[2] In 1954 Lincolns took first and second place.[2]


The 332 cu in (5.4 L) version of the Lincoln Y-block was used for heavy-duty truck applications from the 1955 through the 1963 model year.[4] The engine had a bore of 3.800 in (97 mm) and a stroke of 3.660 in (93 mm)[4][5][6] and produced 212 hp (146 kW).[7] The engine was standard equipment on the Ford F-800, F-900, T-750, T-800, C-800, and C-900 Series heavy-duty trucks.[7]


The 317 cu in (5.2 L) automobile engine was bored out in 1955 to 3.940 in (100.1 mm), displacing 341 cu in (5.6 L).[3][4][5][6] Power was up to 225 hp (168 kW) and torque 332 ft.lbf (450 Nm).[3] in its sole year of produciton.[2]


In the 1956 model year the 341's bore was increased to 4.000 in (101.6 mm) and stroke to 3.660 in (93 mm) to create a 368 cu in (6.0 L) engine[3][4][5][6] that produced 285 hp (213 kW) and 402 ft.lbf (545 Nm).[3] In 1957 horsepower increased to 300 hp (224 kW) with 415 ft.lbf (563 Nm) of torque but the Lincoln still lagged in horsepower and torque behind the Chrysler Hemi 392 used on the Imperial, Chrysler New Yorker, and 300C, and in horsepower behind the 3-2bbl version of the Cadillac 365 used on the Eldorado.[3] The 368 was standard equipment on all Lincolns in the 1956 and 1957 model years,[2] and standard on the Mercury Turnpike Cruiser and Colony Park and optional on the Mercury Montclair, Monterey, Voyager, and Commuter[2] in 1957, its final year.

Lincoln Y-block engine family[edit]

Displacement Bore Stroke Power Torque Years Usage
279 3.562 in (90.5 mm) 3.500 in (88.9 mm) 152 hp (113 kW) 246 lb·ft (334 N·m) 1954 Ford heavy duty trucks
302 3.625 in (92.1 mm) 3.660 in (93.0 mm) 196 hp (146 kW) 1955-1963 Ford heavy duty trucks
317 3.800 in (96.5 mm) 3.500 in (88.9 mm) 160–205 hp (119–153 kW) 284–305 lb·ft (385–414 N·m) 1952-1954 Lincoln and Ford HD trucks
332 3.800 in (96.5 mm) 3.660 in (93.0 mm) 212 hp (158 kW) 1955-1963 Ford heavy duty trucks
341 3.940 in (100.1 mm) 3.500 in (88.9 mm) 225 hp (168 kW) 332 lb·ft (450 N·m) 1955 Lincoln
368 4.000 in (101.6 mm) 3.660 in (93.0 mm) 285–300 hp (213–224 kW) 402–415 lb·ft (545–563 N·m) 1956-1957 Lincoln and Mercury

Block size[edit]

Although classified by some as a medium-block V8 (due to its relatively modest maximum displacement of 368 cu in (6.0 L)[3][5]), the Lincoln Y-block is a big-block engine in size.[1] While bore spacing is relatively modest at 4.630 in (117.6 mm),[5][8] the deck height of 10.940 in (277.9 mm)[5] is greater than any gasoline powered V8 with the exception of the 11.250 in (285.8 mm) Ford Super Duty engine, which gradually replaced the Lincoln Y-block for use on heavy duty trucks.[5]

A useful comparison is the Oldsmobile V8 engine, which came in both small-block and big-block versions from 1965-1976.[3] Both blocks have a bore spacing of 4.625 in (117.5 mm),[3][5] almost exactly the same as the Lincoln Y-block, but differ in deck height, with the small-block's being 9.330 in (237.0 mm)[3][5] and the big-block's 10.625 in (269.9 mm).[3][5] By this measure the Lincoln Y-block has a larger engine block than the Oldsmobile "big-block." In comparison, the Ford FE engine has the same 4.630 in (117.6 mm) bore spacing [5][9] but a deck height of 10.170 in (258.3 mm).[5][9]

Similarly to the Packard V8, another "big-block"[5] which maxed at a relatively modest 374 cu in (6.1 L)),[3][5] the Lincoln Y-Block has unrealized displacement potential. While the Packard engine could have grown to 500 cu in (8.2 L) or more [3] but for the demise of its maker, the Lincoln Y-block was replaced by a engine designs with even greater potential, the Ford MEL and Super Duty engines. The MEL had a somewhat lower deck height of 10.482 in (266.2 mm), but a much larger bore spacing of 4.900 in (124.5 mm),[5][10] while the Super Duty has a monumental bore spacing of 5.250 in (133.4 mm).[5][6]

See also[edit]


  1. ^ a b Auto Editors of Consumer Guide (1999). Great American Convertibles. Publications International, Ltd. ISBN 0-78532-981-1. 
  2. ^ a b c d e f g h i Kowalke, Ron (1997). Standard Catalog of American Cars 1946-1975. Krause publications. ISBN 0-87341-521-3. 
  3. ^ a b c d e f g h i j k l m n o p Peter C Sessler (1999). Ultimate American V8 Engine Data Book. MotorBooks/MBI Publishing Company. ISBN 0-7603-0489-0. 
  4. ^ a b c d e f g h i j k "LINCOLN Y-Block 279-302-332-317-341-368". Retrieved 2012-01-16. 
  5. ^ a b c d e f g h i j k l m n o p q r s "Master Engine Data Table". Retrieved 2012-01-16. 
  6. ^ a b c d e f g "Guides: Ford V-8 Engine Families--A Primer". Retrieved 2012-01-16. [permanent dead link]
  7. ^ a b c d "1957 Ford Trucks Brochure". Retrieved 2012-01-16. 
  8. ^ Des Hammill (2011). Ford Cleveland 335-Series V8 Engine 1970 to 1982. Veloce Publishing PLC. ISBN 1-84584-349-5. 
  9. ^ a b Barry Rabotnick (2010). How to Build Max-Performance Ford FE Engines (Performance How to). S-A Design. ISBN 1-934709-15-8. 
  10. ^ Paul D. Smith (2009). Merchants of Speed: The Men Who Built America's Performance Industry. Motorbooks. ISBN 0-7603-3567-2. 

External links[edit]