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The GM small-block V-8 was introduced on the 1955 Chevrolet and became one of the most successful production and racing engines ever made.

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Milestones

The legacy of the small-block has left an indelible mark on the global auto industry and American automotive culture. Some of its many noteworthy milestones include:

* 1955: Small-block V-8 introduced in 1955 Chevrolets.
* 1957: Larger bore increased displacement to 283 cubic inches; Ramjet mechanical fuel injection was introduced, bringing horsepower to 283 – one horsepower for every cubic inch.
* 1962: Displacement increased to 327 cubic inches, with Ramjet fuel injected version rated at 360 horsepower.
* 1964: Cylinder head improvements bump the 327’s highest horsepower rating to 375 with fuel injection.
* 1967: Little-known option Z28 released for the Camaro, which includes a high-revving 302-cubic-inch small-block for competition in SCCA Trans Am road racing.
* 1968: A Camaro Z28 wins the Trans Am championship; a 350-cubic-inch (5.7 liters) version of the small-block debuts and would become the quintessential small-block variant.
* 1970: 350-cubic-inch LT1 debuts in Camaro and Corvette and is rated at 370 horsepower; 400-cubic-inch small-block is offered – the largest-displacement small-block built.
* 1975: With fuel economy prevalent in consumers’ minds, a more efficient 262-cubic-inch small-block is introduced.
* 1978: V-6 engine based on small-block design introduced; it would become the Vortec V-6 truck engine more than a decade later.
* 1980: Last year for the 400 small-block.
* 1982: Fuel injection reintroduced with the Cross-Fire injection system on Corvette and the redesigned Camaro Z28.
* 1985: Tuned port fuel injection replaces Cross-Fire Injection, ushering in the modern era of electronically controlled, port-injected engines.
* 1986: Aluminum cylinder heads debut as standard equipment on Corvette; block changed to accept new single-piece rear main seal.
* 1987: Hydraulic roller lifters introduced.
* 1989: The H.O. 350 “crate engine” is developed, offering a ready-built performance engine from the factory. It would change the way hot rodders approach engine building in the next decade.
* 1992: LT1 engine in the Corvette introduces Gen II small-block design, which features reverse-flow cooling, revised cylinder head design, and crank-triggered optical distributor.
* 1996: Vortec V-8 engines introduced in trucks, featuring cylinder heads with swirl-inducing combustion chamber design to increase power and torque.
* 1997: Gen III 5.7-liter LS1 small-block introduced with all-new Corvette, featuring all-new deep-skirt block casting with six-bolt mains; redesigned cylinder heads with symmetrical ports and combustion chambers; and coil-near-plug ignition system.
* 1999: Gen III-based Vortec V-8 engines introduced in GM trucks; displacements include 4.8 liters, 5.3 liters and 6.0 liters.
* 2005: Gen IV small-block introduced 50 years after the original.
* 2006: 7.0-liter LS7 introduced in Corvette ZO6 – becomes the largest, most powerful small-block ever built.

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R.Ott: Kas mitte ei olnud nii, et see mootor KOOS pritsungiga oli ainult corvettel?

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