---
product_id: 40457235
title: "Proform 141-266 Valve Cover"
brand: "proform"
price: "2730 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/40457235-proform-141-266-valve-cover
store_origin: PL
region: Poland
---

# Polished smooth finish, no logos Compatible with GM LS-Series & LSX-DR heads Precision diecast aluminum build Proform 141-266 Valve Cover

**Brand:** proform
**Price:** 2730 zł
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your LS engine’s style and performance with Proform’s precision-crafted valve covers!

## Quick Answers

- **What is this?** Proform 141-266 Valve Cover by proform
- **How much does it cost?** 2730 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/40457235-proform-141-266-valve-cover)

## Best For

- proform enthusiasts

## Why This Product

- Trusted proform brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Optimized for Performance Mods:** Clearance for advanced rocker configurations and easy oil filler access on passenger side.
- • **Engineered for LS V-8 Powerhouses:** Tailored fit for GM LS-Series engines, including LSX-DR compatibility with minor mods.
- • **Sleek Polished Aluminum Aesthetic:** Elevate your engine bay with a smooth, logo-free polished finish that commands attention.
- • **Durable Diecast Aluminum Construction:** Lightweight yet robust design ensures long-lasting performance under high heat and stress.
- • **Complete Pair with Coil Relocation Brackets:** Includes Proform slant edge valve covers plus coil relocation brackets for seamless installation.

## Overview

The Proform 141-266 Valve Cover set is a premium pair of polished diecast aluminum covers designed specifically for GM LS-Series V-8 engines. Measuring 11.5 x 8.6 x 1.5 inches and weighing 5 pounds, these covers offer a sleek, logo-free finish and include coil relocation brackets for enhanced installation flexibility. Compatible with LSX-DR cylinder heads (with minor modifications), they provide superior clearance for advanced rocker setups and feature convenient oil filler holes, making them a must-have upgrade for performance-focused LS engine builds.

## Description

Valve Covers GM LS V-8Diecast AluminumPolished FinishSmooth, Without LogosSold in Pairs Kit Includes:Proform Slant Edge Chrome Valve Covers - 778-141-265Proform Coil Relocation Brackets for LS1/LS6 - 778-69520Attention LSX-DR cylinder head owners: These valve covers will fit LSX-DR heads and clear the shaft mounted valvetrain. The mounting bolts included with these LS covers are not compatible with the LSX-DR cylinder heads. LSX-DR owners will need to purchase a LSX-DR mounting bolt kit, Proform part #778-66330.Internal Clearance Note: The following rocker configurations will require the valve cover to be slightly modified: Jesel part numbers: 549-KSS-317070, 549-KSS-317575, and 549-KSS-318080.Additional Notes:Passenger side has oil filler holesGaskets Not Included. Recommend Valve Cover Gasket: 555-210870

## Features

- PROFORM Aluminum Tall Valve Covers GM LS-Series P/N 141-266
- The Package Length of the Product is 8.6 inches
- The Package Width of the Product is 11.5 inches
- The Package Height of the Product is 1.5 inches

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Proform |
| Brand | ProForm |
| Item Weight | 5 pounds |
| Product Dimensions | 11 x 5 x 20.9 inches |
| Item model number | 141-266 |
| Manufacturer Part Number | 141-266 |
| OEM Part Number | 141-266 |

## Images

![Proform 141-266 Valve Cover - Image 1](https://m.media-amazon.com/images/I/618ukyRTpRL.jpg)
![Proform 141-266 Valve Cover - Image 2](https://m.media-amazon.com/images/I/51DWZ+FUm+L.jpg)
![Proform 141-266 Valve Cover - Image 3](https://m.media-amazon.com/images/I/61inBmH+SwL.jpg)
![Proform 141-266 Valve Cover - Image 4](https://m.media-amazon.com/images/I/81uoozgduBL.jpg)
![Proform 141-266 Valve Cover - Image 5](https://m.media-amazon.com/images/I/81jOFdWtStL.jpg)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-26*