Air and Fuel› Intake Manifolds and Components

Holley

2-Barrel 52mm MPI Throttle Body

$383.99

SKU: 112-508

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Holley 112-508 throttle body is a high-performance upgrade designed to enhance your engine's airflow and responsiveness. This unit features a Multi-Port Injection (MPI) style with twin 52mm bores, offering a significant improvement over stock throttle bodies. Constructed from durable CNC billet aluminum and finished with an anodized coating, it is built for longevity and optimal performance. It includes all necessary vacuum ports and linkage required for proper integration. For maximum performance gains, Holley recommends that the upper manifold be bored out to precisely match the throttle body's 52mm bore size. This throttle body is specifically noted for its application on 1992-1997 GM LT1 engines, and also mentioned as a replacement for LT1 and TPI throttle bodies for 1985-88 applications. The twin 52mm throttle blades are designed to increase airflow to your engine, potentially adding more horsepower and providing a noticeably quicker throttle response and better acceleration.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandHolley
Part Number112-508
CategoryAir and Fuel
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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