Intake Manifold Spacer Kit
DescriptionThis Intake Manifold Spacer Kit comes with everything you’ll need to help battle heatsoak on your 1984-89 Nissan 300ZX &... read more
This Intake Manifold Spacer Kit comes with everything you’ll need to help battle heatsoak on your 1984-89 Nissan 300ZX & Turbo (Z31 Chassis).
These spacers are custom manufactured pieces of 3/8″ thick heat-resistant material, offering thermal barrier protection of the upper intake manifold from heat transmitted to it from the lower intake manifold (and thereby the rest of the engine itself). Inserting a thermal barrier here is a tried and true way of reducing the temperature of the intake air charge, improving power efficiency. Also, these spacers are designed to eliminate the use of a plenum gasket, and comes with silicone adhesive included with your purchase.
An additional benefit of using an intake manifold spacer involves the lengthened runner profiles. This has a negligible effect on improving torque, but it does work to shift the powerband down.
Many Z31 owners utilize a number of intake plenums that are common to the Nissan VG engine platform. Therefore, this kit may fit multiple vehicles such as Pathfinder, Hardbody pickups, Frontier, and Xterra with the VG30 and the non-supercharged VG33. All kits include appropriate length bolts to compensate for spacer thickness, as well as silicone adhesive.
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