It was known as the Dauntless V6 and used a much heavier flywheel than the Buick version to damp vibrations resulting from the engine’s firing pattern. Eaton M62 or M90 some versions. Intake ports are mildy improved, 1. It is still a 3. The Series III engines include many changes. The bore was reduced to 3. The firing order is

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From Wikipedia, the free encyclopedia. Buick Division, concerned about high manufacturing costs of their innovative aluminum V8, sought to develop a cheaper, cast-iron engine based on the same tooling. Starting inthe engine was used in the front-wheel drive Buick Rivierathough still with a longitudinal mounting.

This engine was used in the following cars:. Since the cylinders center-lines were no longer centralized over the crank pin bearing journals, the connecting rods were re-designed with the big-ends offset from the piston pin ends by 1.

Buick V6 engine

A turbocharged version was introduced as the pace car at the Indianapolisand a production turbo arrived in The Series III engines include many changes. Automobil Revue in German and French.

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Compression remains at 9. Emissions are also reduced. It was known as the Dauntless V6 and used a much heavier flywheel than the Buick version to damp vibrations resulting from the engine’s firing pattern.


The bore was increased to 3. Intake ports are mildy improved, 1. This generation continued in use in several GM products into the s. The lower intake gaskets and upper intake manifolds were revised, correcting all these issues. Both engines share the same engine blocks, but compression is reduced from 9.

Buick V6 engine – Wikipedia

The engine, originally designed and manufactured in the United States, was also produced in later versions in Australia. Like most V6s, the engine is well known for its reliability and low maintenance costs. It was replaced in with the 3. By using this site, you agree to the Terms of Use and Privacy Policy.

HP was rated at for 3880 Gen2 supercharger with a 2. The latter was offered in various models through Fromthe 3. As with the L67, premium fuel 91 octane or higher is required, but the PCM can compensate for lower vuic fuel at the cost of acceleration.

This was the first naturally aspirated GM V-6 to feature a 4-barrel carburetor. It is still a 3. The engine is a popular choice for aftermarket modification thanks to its very strong internals and impressive power gains from basic upgrades. This page was last edited on 22 Decemberat The fire could spread to the nearby plastic spark plug wire retainers on the valve cover and then to the rest of the engine compartment. Final drive ratios are reduced in most applications, for better fuel economy and for improved use of the engine’s torque in the low RPM range.


This engine was used in many large rear-wheel drive Buicks, and in some models from each of GM’s other divisions, including Cadillac which offered the “big” Buick V6 in several models from to as a credit option 3800 the troublesome V engine used bic and early versions of the aluminum-block Cadillac HT V8 introduced in CS1 German-language sources de CS1 French-language sources fr All articles buc unsourced statements Articles with unsourced statements from February Commons category link is on Wikidata.

Also note that Series III engines are buoc base for any produced for the year and up. The firing order is The L67 is the supercharged version of the Series II Bbuic and appeared inone year after the normally aspirated version.

It was introduced for and used the VIN code: