Holley LS Drive By Wire 4150 Throttle Body Adapters
You can’t beat Holley for new product ideas such as Holley EFI’s Billet aluminum throttle body adapters. They allow you to use a single bore drive by wire throttle body on a 4-barrel style intake manifold. Available in 92 or 105mm opening, they bolt onto any 4150 flanged intake manifold. CNC machined from billet aluminum, these adapters offer superior strength and good looks. A slotted bolt pattern allows you to clock your throttle body while an O-ring provides an airtight seal. Multiple NPT ports allow for plenty of vacuum lines. All the hardware needed for a quick installation is included.
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