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<h1>Intake Manifolds</h1>
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<h2>Naturally-Aspirated Intake Manifolds</h2>
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<h3>L36 and L26 Front-Wheel Drive</h3>
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L36 and L26 engines both received the same lower intake manifold, however the upper intake manifold/plenum is slightly different between them.
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Below is an image of the lower intake for both of these:
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L36 engines were equipped with plastic upper intake manifolds that were black in color.
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The L26 engines were equipped with an aluminum intake manifold that was silver.
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These intake manifolds had a separate piece inside the manifold that extended the intake runners into the roof of the plenum to help increase the amount of low-end torque the engines would produce.
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These can be replaced with an aftermarket insert which tends to trade low-end torque for top-end horsepower by shortening the intake runners.
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<p>
L36's in f-body's were equipped with an intake where the throttle body was located on the front of the motor to help these engines fit better into the f-body.
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In 1999 f-body's received a slightly revised intake manifold for the drive by wire throttle body. In these intake manifolds, the thottle body opening is not turned down anymore like the earlier manifolds.
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This can be seen in this image of a 99+ f-body L36:
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The f-body intake has shorter runners than the front-wheel drive vehicles so it would seem to favor top-end power slightly better than the front-wheel drive manifolds would from the factory.
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<h3>L36 Holden</h3>
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L36's Holden cars were equipped with an intake manifold that was faced sideways.
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<h2>Supercharged Intake Manifolds</h2>
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L32 and L67 vehicles both came equipped with the same intake manifold from the factory with no apparent changes.
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