Rather, the intake-manifold-runner lengths must be tuned to ... Even more impressive, the engine offered over 400 lb-ft from 3,800 to 6,000 rpm. After we installed the BBK SSI intake and matching ...

The Buick-designed, 3.8L, 3800 V6 Series II engine first appeared ... coil-pack brackets (1999-and-later cars), lower intake manifold, Eaton Gen III M90 SC, M90 SC bolts, new torque-to-yield ...

By the end of 2006 we'd spent a little over $3,000 on used intake manifolds. It was stupid by any measure, so we needed to manufacture a cause. The next six pages add up to justification.

The lower intake manifold gaskets failed at some point ... but considering the general lack of lubrication within this engine, the old 3800 lives up to its legendary status.

I'm hopeful that carbon removal may quiet things down. Other than some problems with later-generation 3800 intake manifolds leaking coolant, this engine is as about as tough as they come.