GM small block V8: Difference between revisions
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The General Motors Small Block V8 engine was introduced in the 1955 Chevrolet. It displaced 265 cubic inches. | The General Motors Small Block V8 engine was introduced in the 1955 Chevrolet. It displaced 265 cubic inches. | ||
To date, there have been four generations of this family of engines. All of these engines share a common bank angle and cylinder bore spacing. | To date, there have been four generations of this family of engines. All of these engines share a common bank angle and cylinder bore spacing, use a cam-in-block (aka pushrod) layout, and have large followings for aftermarket performance upgrades. | ||
== [[First Generation GM small block V8|First Generation]] (1955) == | == [[First Generation GM small block V8|First Generation]] (1955) == | ||
| Line 14: | Line 14: | ||
* Composite Intake Manifold | * Composite Intake Manifold | ||
* Revised firing order | * Revised firing order | ||
* 15-degree | * 15-degree valve angle | ||
* Six-bolt main caps | |||
* Coil-on-plug ignition | |||
== [[Fourth Generation GM small block V8|Fourth Generation]] (2005) == | == [[Fourth Generation GM small block V8|Fourth Generation]] (2005) == | ||
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* [[Variable valve timing]] | * [[Variable valve timing]] | ||
A [[Fifth Generation GM small block V8|fifth generation]] is rumored for the future, supporting such advanced features as direct injection and | A [[Fifth Generation GM small block V8|fifth generation]] is rumored for the future, supporting such advanced features as direct injection and separately variable valve timing for intake and exhaust. | ||
Latest revision as of 17:08, 31 December 2007
The General Motors Small Block V8 engine was introduced in the 1955 Chevrolet. It displaced 265 cubic inches.
To date, there have been four generations of this family of engines. All of these engines share a common bank angle and cylinder bore spacing, use a cam-in-block (aka pushrod) layout, and have large followings for aftermarket performance upgrades.
First Generation (1955)
- First engine to reach 1hp / cubic inch
Second Generation (1992)
Third Generation (1997)
- Aluminum block and heads
- Composite Intake Manifold
- Revised firing order
- 15-degree valve angle
- Six-bolt main caps
- Coil-on-plug ignition
Fourth Generation (2005)
A fifth generation is rumored for the future, supporting such advanced features as direct injection and separately variable valve timing for intake and exhaust.
