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Engines and Components› Engines, Blocks and Components

Chevrolet Performance

LS3 525HP ASA Camshaft Engine Kit

$2,472.65 $2,261.58 Save $211.07

SKU: 19540149

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
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Overview

This kit is specifically calibrated for the GM LS3 525HP engine (part number 19435104) and is tuned to handle the aggressive idle of its ASA Camshaft. It provides maximum performance, superior drivability, and diagnostics.
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This kit is meticulously calibrated for the GM LS3 525HP engine (part number 19435104), specifically tuned to manage the aggressive idle characteristics of the ASA Camshaft found in the LS376/525 crate engine. This comprehensive kit includes essential components to connect the engine and ECM, ensuring a straightforward installation process guided by detailed GM instructions. Key components include Oxygen Sensors, a Mass Air Flow Meter (MAF), an Oil Pressure Sensor and Harness, and a Fuel Pressure Sensor Kit. The hardware package features O2 Sensor Mounting Bosses, a MAF Mounting Kit, a Drive-By-Wire Throttle Pedal Assembly, a Complete Engine/ECM Wiring Harness with a Fuse Box, a Fuel Pump Power Module, and a GM Fully Calibrated ECM. For the engine to run, the only additional parts required are power and ground connections, a fuel pump, and an electric cooling fan. It is crucial that your fuel pump meets the system's demands, maintaining 400 kPa (60 psi) of constant pressure and delivering 40 gph for LS2/LS3/LS376 engines or 50 gph for LSX454 & LS7 engines. Please note that some minor component variations may occur based on specific engine applications. This controller is separate from transmission control; for 4L70-E/4L75-E transmissions, Chevrolet Performance offers a dedicated transmission controller (part number 19302405).

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

BrandChevrolet Performance
Part Number19540149
CategoryEngines and Components

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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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