Hot on the heels of the Generation III was Generation IV. These big-bore engines are some of the largest small-blocks yet, and will quickly replace the previous generation. Displacement ranges up to 7.0 L and output to 505 hp (373 kW). Generation IV will later feature displacement on demand, a technology that allows one bank of cylinders to be deactivated. It will also offer variable cam phasing and 3-valve per cylinder designs, a novelty in a pushrod engine.

GM LS engine, GM LS engine - Generation III, GM LS engine - LS1, GM LS engine - LS6, GM LS engine - Vortec engines, GM LS engine - Generation IV, GM LS engine - L76, GM LS engine - LS2, GM LS engine - LS4, GM LS engine - LS7

Read more here: » GM LS engine: Encyclopedia II - GM LS engine - Generation IV

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GM LT engine, GM LT engine - Generation I, GM LT engine - LT5, GM LT engine - Generation II, GM LT engine - LT1, GM LT engine - LT4, GM LT engine - L99 4.3L, GM LT engine - Generation III/IV

Read more here: » GM LT engine: Encyclopedia II - GM LT engine - Generation II

See the GM Small-Block engine page for information on the first generation of the 350 V8. GM LT engine - LT5. The 1990 LT5 was a special engine indeed. It was a 350 in³ (5.7 L) small-block V8, but was entirely different than the standard 350. The bore and stroke were both different at 3.9 by 3.66 in (99 by 93 mm) instead of the usual 4 by 3.48 in (102 by 88 mm) and it featured a Lotus-designed 32-valve DOHC head. It was built by specialty engine builder, Mercury Marine. This engine produced 375 hp ...

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GM LT engine, GM LT engine - Generation I, GM LT engine - LT5, GM LT engine - Generation II, GM LT engine - LT1, GM LT engine - LT4, GM LT engine - L99 4.3L, GM LT engine - Generation III/IV

Read more here: » GM LT engine: Encyclopedia II - GM LT engine - Generation I

Most current GM small-block V8s (the LT and LS series) trace their lineage to the 1955 265 in³ V8 developed for the Corvette. Displacement and power eventually reached 327 in³ and 509 hp (in prototypes) before the Corvette switched to Chevrolet big-block power. But the small-block lived on, settling in at 350 in³ for decades of performance. Chevrolet Small-Block engine - 265. The 265 in³ (4.3 L) V8 was the first Chevrolet small block. Designed by Ed Cole's group at Chevrol ...

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Chevrolet Small-Block engine, Chevrolet Small-Block engine - Introduction, Chevrolet Small-Block engine - Major Versions, Chevrolet Small-Block engine - Generation 1, Chevrolet Small-Block engine - Generation II, Chevrolet Small-Block engine - Generation III / IV, Chevrolet Small-Block engine - Early Small Blocks, Chevrolet Small-Block engine - 265, Chevrolet Small-Block engine - 283, Chevrolet Small-Block engine - 302, Chevrolet Small-Block engine - 307, Chevrolet Small-Block engine - 327, Chevrolet Small-Block engine - 400, Chevrolet Small-Block engine - Later Small Blocks, Chevrolet Small-Block engine - 262, Chevrolet Small-Block engine - 267, Chevrolet Small-Block engine - 305, Chevrolet Small-Block engine - 350, Chevrolet Small-Block engine - ZQ3, Chevrolet Small-Block engine - L46, Chevrolet Small-Block engine - LT-1, Chevrolet Small-Block engine - L48, Chevrolet Small-Block engine - L82, Chevrolet Small-Block engine - L81, Chevrolet Small-Block engine - L83, Chevrolet Small-Block engine - L98, Chevrolet Small-Block engine - LM1

Read more here: » Chevrolet Small-Block engine: Encyclopedia II - Chevrolet Small-Block engine - Early Small Blocks

The market of the 1970s forced Cadillac to downsize its vehicles and engines. While the Cadillac Seville used a 350 cu. in. (5.7 L) Oldsmobile V8 engine, Cadillac also began work on smaller proprietary engines. Cadillac V8 engine - 425. In 1977 Cadillac introduced a new 425 cu. in. (7.0 L) V8, based on the architecture of the 472, but with a smaller, 4.08 in (103.6 mm) bore and 4.06 in (103.2 mm) stroke. Th ...

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Cadillac V8 engine, Cadillac V8 engine - L-Head, Cadillac V8 engine - Monobloc, Cadillac V8 engine - LaSalle, Cadillac V8 engine - OHV, Cadillac V8 engine - 331, Cadillac V8 engine - 365, Cadillac V8 engine - 390, Cadillac V8 engine - Redesigned OHV, Cadillac V8 engine - 390, Cadillac V8 engine - 429, Cadillac V8 engine - World's Largest, Cadillac V8 engine - 472, Cadillac V8 engine - 500, Cadillac V8 engine - Downsized OHV, Cadillac V8 engine - 425, Cadillac V8 engine - 368 and V8-6-4, Cadillac V8 engine - Aluminum OHV, Cadillac V8 engine - HT-4100, Cadillac V8 engine - HT-4500, Cadillac V8 engine - HT-4900, Cadillac V8 engine - Cadillac use of non-Cadillac V8s, Cadillac V8 engine - Northstar

Read more here: » Cadillac V8 engine: Encyclopedia II - Cadillac V8 engine - Downsized OHV

The second generation of Oldsmobile V8s was produced from 1964 through 1990. Most of these engines were very similar, using the same bore centers, although "big-block" versions were produced with a 10.625 in (269.9 mm) deck height rather than 9.33 in (237 mm). Big-block and Diesel versions also used a larger 3.0 in (76.2 mm) instead of 2.5 in (63.5 mm) main journal for increased strength. All generation-2 small-block Olds V8s use a stroke of 3.385 in (86 mm), and al ...

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Oldsmobile V8 engine, Oldsmobile V8 engine - Generation 1, Oldsmobile V8 engine - 303, Oldsmobile V8 engine - 324, Oldsmobile V8 engine - 370, Oldsmobile V8 engine - 371, Oldsmobile V8 engine - 394, Oldsmobile V8 engine - Aluminum 215 Rockette, Oldsmobile V8 engine - Turbo Jetfire, Oldsmobile V8 engine - Generation 2, Oldsmobile V8 engine - 330, Oldsmobile V8 engine - 400, Oldsmobile V8 engine - 425, Oldsmobile V8 engine - 455, Oldsmobile V8 engine - 350, Oldsmobile V8 engine - 403, Oldsmobile V8 engine - 260, Oldsmobile V8 engine - 307, Oldsmobile V8 engine - Generation 3

Read more here: » Oldsmobile V8 engine: Encyclopedia II - Oldsmobile V8 engine - Generation 2

In 1968 the Windsor was stroked to 3.0 in (76.2 mm), giving a total displacement of 302 cu. in. (4.9 L). The connecting rods were shortened to allow the use of the same pistons as the 289. It replaced the 289 early in the 1968 model year. The most common form of this engine used a two-barrel carburetor, initially with 9.5:1 compression. It had hydraulic lifters and valves of 1.773 in (45 mm) (intake) and 1.442 in (36.6 mm) (exhaust), and was rated (SAE gross) at 220 hp (164 kW) @ 4600 rpm and 300 lbf·ft (406 N·m) @ 2600 rpm. The 1968 Shelby GT350 used a four-barrel v ...

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Ford Windsor engine, Ford Windsor engine - 221, Ford Windsor engine - 260, Ford Windsor engine - 289, Ford Windsor engine - 289 HiPo K-code, Ford Windsor engine - 302, Ford Windsor engine - 351W, Ford Windsor engine - Boss 302, Ford Windsor engine - 255

Read more here: » Ford Windsor engine: Encyclopedia II - Ford Windsor engine - 302

A high-performance version of the 289 engine was introduced late in the 1963 model year as a special order for Ford Fairlanes and Mercury Comets. The engine is informally known as the "HiPo" or the K-code (after the engine letter used in the VIN of cars so equipped). Starting in June 1964, it became an option for the Mustang. The HiPo engine was engineered to increase performance and high-RPM reliability over standard 289 fare. It had solid lifters with hotter cam timing; 10.5:1 compression; a dual point, centrifugal advance di ...

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Ford Windsor engine, Ford Windsor engine - 221, Ford Windsor engine - 260, Ford Windsor engine - 289, Ford Windsor engine - 289 HiPo K-code, Ford Windsor engine - 302, Ford Windsor engine - 351W, Ford Windsor engine - Boss 302, Ford Windsor engine - 255

Read more here: » Ford Windsor engine: Encyclopedia II - Ford Windsor engine - 289 HiPo K-code

The 289 in³ (4.7 L) Windsor was also introduced in 1963. Bore was expanded to 4.0 in (102 mm), the bore limit of any factory Windsor engine. The 289 weighed 506 lb (230 kg). In 1963 the 289 was available in two forms: with a two-barrel carburetor and 8.7:1 compression, rated at 195 hp (145 kW) @ 4400 rpm and 258 lbf·ft (350 N·m) @ 2200 rpm, and with a four-barrel carburetor and 9.0:1 compression, rated at 210 hp (157 kW) @ 4400 rpm and 300 lbf·ft (407 N·m) @ 2800 rpm. The two-barrel 289 replaced the 260 as the base V8 for full-sized Fords. Both 1964 and 1965 versions had a five-bolt bell housing pattern th ...

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Ford Windsor engine, Ford Windsor engine - 221, Ford Windsor engine - 260, Ford Windsor engine - 289, Ford Windsor engine - 289 HiPo K-code, Ford Windsor engine - 302, Ford Windsor engine - 351W, Ford Windsor engine - Boss 302, Ford Windsor engine - 255

Read more here: » Ford Windsor engine: Encyclopedia II - Ford Windsor engine - 289

The first generation of Oldsmobile V8s ranges from 1949 until 1964. Each engine in this generation is quite similar with the same size block and heads. Oldsmobile V8 engine - 303. The 303 in³ (5.0 L) engine had hydraulic lifters, an oversquare bore:stroke ratio, a counterweighted forged crankshaft, aluminum pistons, floating wristpins, and a dual-plane intake manifold. The 303 was produced from 1949 until 1953. Bore was 3.75 in (95.2 mm) and stroke was 3.4375 in (87.3 mm). Cadi ...

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Oldsmobile V8 engine, Oldsmobile V8 engine - Generation 1, Oldsmobile V8 engine - 303, Oldsmobile V8 engine - 324, Oldsmobile V8 engine - 370, Oldsmobile V8 engine - 371, Oldsmobile V8 engine - 394, Oldsmobile V8 engine - Aluminum 215 Rockette, Oldsmobile V8 engine - Turbo Jetfire, Oldsmobile V8 engine - Generation 2, Oldsmobile V8 engine - 330, Oldsmobile V8 engine - 400, Oldsmobile V8 engine - 425, Oldsmobile V8 engine - 455, Oldsmobile V8 engine - 350, Oldsmobile V8 engine - 403, Oldsmobile V8 engine - 260, Oldsmobile V8 engine - 307, Oldsmobile V8 engine - Generation 3

Read more here: » Oldsmobile V8 engine: Encyclopedia II - Oldsmobile V8 engine - Generation 1

A slightly larger 307 in³ (5 L) version was introduced in 1980. It uses the Oldsmobile 3.385 in (86 mm) stroke and a 3800-like 3.8 in (96.5 mm) bore. All 307s were painted black. It was used in most Oldsmobile models, as well as those from Buick, Cadillac, Chevrolet, and Pontiac. Every 307 was carbureted, and all used 4-barrel carbs. In fact, the 1990 5.0 L Olds V8 was the last carbureted passenger car engine on the market in the United States (excluding the 1991 Ford Crown Victoria Police Interceptor 351CID and the 1994 Mazda pick up truck, the very last ...

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Oldsmobile V8 engine, Oldsmobile V8 engine - Generation 1, Oldsmobile V8 engine - 303, Oldsmobile V8 engine - 324, Oldsmobile V8 engine - 370, Oldsmobile V8 engine - 371, Oldsmobile V8 engine - 394, Oldsmobile V8 engine - Aluminum 215 Rockette, Oldsmobile V8 engine - Turbo Jetfire, Oldsmobile V8 engine - Generation 2, Oldsmobile V8 engine - 330, Oldsmobile V8 engine - 400, Oldsmobile V8 engine - 425, Oldsmobile V8 engine - 455, Oldsmobile V8 engine - 350, Oldsmobile V8 engine - 403, Oldsmobile V8 engine - 260, Oldsmobile V8 engine - 307, Oldsmobile V8 engine - Generation 3

Read more here: » Oldsmobile V8 engine: Encyclopedia II - Oldsmobile V8 engine - 307

From 1961 to 1963 Oldsmobile manufactured its own version of the Buick-designed, all-aluminum 215 engine for the F-85 compact, known as the Rockette. This was a compact, lightweight engine with a dry weight of only 350 lb (159 kg). The Oldsmobile engine was very similar to the Buick engine, but not identical: it had larger combustion chambers with flat-topped (rather than domed) pistons, six bolts rather than five per cylinder head, and slighly larger intake valves. With a 8.75:1 compression ratio and a two-barrel carburetor, the Olds ...

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Oldsmobile V8 engine, Oldsmobile V8 engine - Generation 1, Oldsmobile V8 engine - 303, Oldsmobile V8 engine - 324, Oldsmobile V8 engine - 370, Oldsmobile V8 engine - 371, Oldsmobile V8 engine - 394, Oldsmobile V8 engine - Aluminum 215 Rockette, Oldsmobile V8 engine - Turbo Jetfire, Oldsmobile V8 engine - Generation 2, Oldsmobile V8 engine - 330, Oldsmobile V8 engine - 400, Oldsmobile V8 engine - 425, Oldsmobile V8 engine - 455, Oldsmobile V8 engine - 350, Oldsmobile V8 engine - 403, Oldsmobile V8 engine - 260, Oldsmobile V8 engine - 307, Oldsmobile V8 engine - Generation 3

Read more here: » Oldsmobile V8 engine: Encyclopedia II - Oldsmobile V8 engine - Aluminum 215 Rockette

The second version of the Windsor, introduced during the middle of the 1962 model year, had a wider bore of 3.80 in (96.5 mm), increasing displacement to 260 cu. in. (4.3L). Compression ratio was raised fractionally to 8.8:1. The engine was slightly heavier than the 221, at 482 lb (219 kg). Rated power (still SAE gross) rose to 164 hp (122 kW) @ 4400 rpm, with a peak torque of 258 lbf·ft (350 N·m) @ 2200 rpm. In 1962 and 1963 valve diameters remained the same as the 221, but starting in 1964 they were enlarged to 1.67 in. (42.4 mm) (intake) and 1.45 in (36.8 ...

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Ford Windsor engine, Ford Windsor engine - 221, Ford Windsor engine - 260, Ford Windsor engine - 289, Ford Windsor engine - 289 HiPo K-code, Ford Windsor engine - 302, Ford Windsor engine - 351W, Ford Windsor engine - Boss 302, Ford Windsor engine - 255

Read more here: » Ford Windsor engine: Encyclopedia II - Ford Windsor engine - 260

The 351 Windsor featured a 1.5 in (38.1 mm) taller deck height, allowing a stroke of 3.5 in (88.9 mm). Although related in general configuration to the 289-302 and sharing the same bell housing and other small parts, the 351W had a unique block, larger main bearing caps, thicker connecting rods, and a distinct firing order, adding some 25 lb (11 kg) to the engine's dry weight. The distributor is slightly different to accommodate a larger oil pump shaft and larger oil pump. Some years had threaded dipstick tubes. It had a unique head which optimized torque over high-rpm breathing, frequently replaced by enthusiasts with aft ...

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Ford Windsor engine, Ford Windsor engine - 221, Ford Windsor engine - 260, Ford Windsor engine - 289, Ford Windsor engine - 289 HiPo K-code, Ford Windsor engine - 302, Ford Windsor engine - 351W, Ford Windsor engine - Boss 302, Ford Windsor engine - 255

Read more here: » Ford Windsor engine: Encyclopedia II - Ford Windsor engine - 351W

This section documents the odd-size small blocks developed after the 350 appeared in 1969. Many of these basic blocks are variations of the 350 design. Chevrolet Small-Block engine - 262. The 262 was a 4.3 L (262 in³) 90° pushrod V8 with an iron block and heads. Bore and stroke were 3.67 in (93 mm) by 3.10 in (78.7 mm). Power output for 1975 was 110 hp (82 kW) and 195 ft·lbf (264 N·m). Althoug ...

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Chevrolet Small-Block engine, Chevrolet Small-Block engine - Introduction, Chevrolet Small-Block engine - Major Versions, Chevrolet Small-Block engine - Generation 1, Chevrolet Small-Block engine - Generation II, Chevrolet Small-Block engine - Generation III / IV, Chevrolet Small-Block engine - Early Small Blocks, Chevrolet Small-Block engine - 265, Chevrolet Small-Block engine - 283, Chevrolet Small-Block engine - 302, Chevrolet Small-Block engine - 307, Chevrolet Small-Block engine - 327, Chevrolet Small-Block engine - 400, Chevrolet Small-Block engine - Later Small Blocks, Chevrolet Small-Block engine - 262, Chevrolet Small-Block engine - 267, Chevrolet Small-Block engine - 305, Chevrolet Small-Block engine - 350, Chevrolet Small-Block engine - ZQ3, Chevrolet Small-Block engine - L46, Chevrolet Small-Block engine - LT-1, Chevrolet Small-Block engine - L48, Chevrolet Small-Block engine - L82, Chevrolet Small-Block engine - L81, Chevrolet Small-Block engine - L83, Chevrolet Small-Block engine - L98, Chevrolet Small-Block engine - LM1

Read more here: » Chevrolet Small-Block engine: Encyclopedia II - Chevrolet Small-Block engine - Later Small Blocks

For the 1963 model year Cadillac updated their V8 engine, modernizing the tooling used in the production line while optimizing the engine's design. Although it shared the same layout and architecture with the 1949-vintage engine, the revised engine had shorter connecting rods and was one inch (25.4 mm) lower, 4 inches (101.6 mm) narrower, and 1.25 in (31.8 mm) shorter. The accessories (water pump, power steering pump, distributor) mounted on a die-cast aluminum housing at the front of the engine for improved accessibility. An alternator repl ...

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Cadillac V8 engine, Cadillac V8 engine - L-Head, Cadillac V8 engine - Monobloc, Cadillac V8 engine - LaSalle, Cadillac V8 engine - OHV, Cadillac V8 engine - 331, Cadillac V8 engine - 365, Cadillac V8 engine - 390, Cadillac V8 engine - Redesigned OHV, Cadillac V8 engine - 390, Cadillac V8 engine - 429, Cadillac V8 engine - World's Largest, Cadillac V8 engine - 472, Cadillac V8 engine - 500, Cadillac V8 engine - Downsized OHV, Cadillac V8 engine - 425, Cadillac V8 engine - 368 and V8-6-4, Cadillac V8 engine - Aluminum OHV, Cadillac V8 engine - HT-4100, Cadillac V8 engine - HT-4500, Cadillac V8 engine - HT-4900, Cadillac V8 engine - Cadillac use of non-Cadillac V8s, Cadillac V8 engine - Northstar

Read more here: » Cadillac V8 engine: Encyclopedia II - Cadillac V8 engine - Redesigned OHV

Cadillac V8 engine - 331. For 1949, Cadillac and Oldsmobile shared a new V8 design, Olds at 303 in³ engine and Cadillac at 331 in³. This was the first OHV V8. Output was impressive at 160 hp (119 kW). The American automakers competed throughout the 1950s to produce the most powerful V8. Cadillac quickly added four-barrel carburetors and dual exhausts to their V8 models, boosting output to 250 hp (186 kW) for most by 1955. The Eldorado used twin four-barrels for 270 hp (201 kW). ...

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Cadillac V8 engine, Cadillac V8 engine - L-Head, Cadillac V8 engine - Monobloc, Cadillac V8 engine - LaSalle, Cadillac V8 engine - OHV, Cadillac V8 engine - 331, Cadillac V8 engine - 365, Cadillac V8 engine - 390, Cadillac V8 engine - Redesigned OHV, Cadillac V8 engine - 390, Cadillac V8 engine - 429, Cadillac V8 engine - World's Largest, Cadillac V8 engine - 472, Cadillac V8 engine - 500, Cadillac V8 engine - Downsized OHV, Cadillac V8 engine - 425, Cadillac V8 engine - 368 and V8-6-4, Cadillac V8 engine - Aluminum OHV, Cadillac V8 engine - HT-4100, Cadillac V8 engine - HT-4500, Cadillac V8 engine - HT-4900, Cadillac V8 engine - Cadillac use of non-Cadillac V8s, Cadillac V8 engine - Northstar

Read more here: » Cadillac V8 engine: Encyclopedia II - Cadillac V8 engine - OHV

A 322 in³ (5.3 L) "monobloc" engine was used in 1936's Series 60. It was designed to be the company's next-generation powerplant at reduced cost from the 353 and Cadillac V12. The monobloc's cylinder heads were cast as one unit with the engine block, and it used hydraulic valve lifters for durability. This design allowed the creation of the mid-priced Series 60 line. Bore was 3.375 in (85.7 mm) and stroke was 4.5 in (114.3 mm). This engine was modified with a 3.5 in (88.9 mm) bore for the 1936- ...

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Cadillac V8 engine, Cadillac V8 engine - L-Head, Cadillac V8 engine - Monobloc, Cadillac V8 engine - LaSalle, Cadillac V8 engine - OHV, Cadillac V8 engine - 331, Cadillac V8 engine - 365, Cadillac V8 engine - 390, Cadillac V8 engine - Redesigned OHV, Cadillac V8 engine - 390, Cadillac V8 engine - 429, Cadillac V8 engine - World's Largest, Cadillac V8 engine - 472, Cadillac V8 engine - 500, Cadillac V8 engine - Downsized OHV, Cadillac V8 engine - 425, Cadillac V8 engine - 368 and V8-6-4, Cadillac V8 engine - Aluminum OHV, Cadillac V8 engine - HT-4100, Cadillac V8 engine - HT-4500, Cadillac V8 engine - HT-4900, Cadillac V8 engine - Cadillac use of non-Cadillac V8s, Cadillac V8 engine - Northstar

Read more here: » Cadillac V8 engine: Encyclopedia II - Cadillac V8 engine - Monobloc

The Type 51 was the first Cadillac V8. Introduced in 1914, it was the standard engine for 1915 Cadillac models. It was a 90° design with an L-head (sidevalve) configuration and was water cooled. Bore was 3.125 in and stroke was 5.125 in, for a total of 314 in³ of displacement. Output was 70 hp (52 kW). The engine was refined for 1923 with a new split crankshaft that introduced the (now standard) 90° offset for each pair of cylinders. Power was up to 83.5 hp (62 kW). The L-Head was on the War ...

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Cadillac V8 engine, Cadillac V8 engine - L-Head, Cadillac V8 engine - Monobloc, Cadillac V8 engine - LaSalle, Cadillac V8 engine - OHV, Cadillac V8 engine - 331, Cadillac V8 engine - 365, Cadillac V8 engine - 390, Cadillac V8 engine - Redesigned OHV, Cadillac V8 engine - 390, Cadillac V8 engine - 429, Cadillac V8 engine - World's Largest, Cadillac V8 engine - 472, Cadillac V8 engine - 500, Cadillac V8 engine - Downsized OHV, Cadillac V8 engine - 425, Cadillac V8 engine - 368 and V8-6-4, Cadillac V8 engine - Aluminum OHV, Cadillac V8 engine - HT-4100, Cadillac V8 engine - HT-4500, Cadillac V8 engine - HT-4900, Cadillac V8 engine - Cadillac use of non-Cadillac V8s, Cadillac V8 engine - Northstar

Read more here: » Cadillac V8 engine: Encyclopedia II - Cadillac V8 engine - L-Head

The first engine of this family, introduced for the 1962 model year as an option on the Ford Fairlane, had a displacement of 221 cu. in (3.6 L), from a 3.5 in (89 mm) bore and 2.87 in (72.9 mm) stroke, with wedge combustion chambers for excellent breathing. An advanced, compact, thinwall-casting design, it was 24 in wide, 29 in long, and 27.5 in tall (610 mm × 737 mm × 699 mm). It weighed only 470 lb (210 kg) dry despite its cast iron construction, making it one of the light ...

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Ford Windsor engine, Ford Windsor engine - 221, Ford Windsor engine - 260, Ford Windsor engine - 289, Ford Windsor engine - 289 HiPo K-code, Ford Windsor engine - 302, Ford Windsor engine - 351W, Ford Windsor engine - Boss 302, Ford Windsor engine - 255

Read more here: » Ford Windsor engine: Encyclopedia II - Ford Windsor engine - 221