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COMP Cams

Mutha Thumpr Camshaft

$499.95 $404.95 Save $95.00

SKU: 283THR-109

In Stock
In Stock
Ships by Aug 31
Free Shipping over $200
$100 Minimum Order
30 Days Return

Description

The COMP Cams 283THR-109 Mutha Thumpr camshaft is engineered for LS1-based engines seeking a significant performance upgrade. This hydraulic roller camshaft is part of COMP Cams' signature Mutha Thumpr series, known for delivering an aggressive, muscle car sound. With a 109-degree lobe separation and an advertised duration of 283/303, this camshaft is designed to enhance power across the RPM range. It is specifically intended for LS1 applications within the 1997-2013 C5-C6 Corvette models. Additionally, it is compatible with a broad spectrum of GM LS engines, including displacements from 4.8L to 7.0L (LS1, LS2, LS3, LS4, LS6, LS7), making it suitable for both car and truck applications. This camshaft is a performance-oriented component that will alter the engine's powerband and sound profile. For optimal performance and reliability, it is recommended to consult COMP Cams' specific installation guidelines, which may include requirements for upgraded valve springs, retainers, and potentially ECU tuning to take full advantage of the camshaft's capabilities.

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

BrandCOMP Cams
Part Number283THR-109
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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