Lincoln Y-block V8 engine

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Lincoln Y-block V8
ManufacturerFord Motor Company
PredecessorInVincible 8
SuccessorFord MEL V8

The Lincoln V8 engine was Ford's earliest OHV V8 engine was introduced by Lincoln in 1952. Like the later (and better-known) Ford Y-block engine, its deep skirts made the block resemble the letter Y from the front. This development was arguably in response to the sales success of the competing Oldsmobile "Rocket" overhead valve V8 and Cadillac OHV V8 engines introduced in their respective 1949 models. This basic engine design was produced through 1957, when it was replaced by the newer MEL engine.


The first new-generation Y-block was the 317 in³ (5.2 L) "317". It replaced the undersquare flat-head InVincible 8. The new engine was oversquare (meaning the bore was greater than the stroke) as was rapidly becoming the fashion, with a bore of 3.8 in (96.5 mm) and a stroke of 3.5 in (88.9 mm). Power output was just 160 hp (119 kW) that first year, but was increased to 205 hp (153 kW) the next year with higher compression, larger intake valves, a Holley four-barrel carburetor, improved intake and exhaust, and a hotter camshaft. The engine was unchanged in 1954 except for the vacuum advance mechanism with the power output remaining the same. These engines using the solid valve lifters used in the truck engines were the engines that powered the famous "Mexican Road Race Lincolns" The 317 was replaced by the 341 for 1955.


The 317 was bumped up to 341 in³ (5.6 L) with a 3.94 in (100.1 mm) bore for 1955. 225 hp (168 kW) and 332 ft.lbf (450 Nm) was produced, a major update. The engine was only produced that one year.


The engine was bored (to 4.00 in/101.6 mm) and stroked (to 3.66 in/93 mm) for 1956's 368 in³ (6.0 L) Lincoln V8. Output jumped up to 285 hp (213 kW) and 402 ft.lbf (545 Nm) that year with numerous other improvements. Power output reached a high point the next year at 300 hp (224 kW) and 415 ft.lbf (563 Nm), but the Lincoln still lagged behind Cadillac and Chrysler. 1957 proved to be the last year for this engine design.


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