--- product_id: 37816821 title: "COMP Cams 54-602-11 Big Mutha' Thumpr 235/249 Hydraulic Roller Cam for GM LS GEN III/IV" brand: "comp cams" price: "¥110396" currency: JPY in_stock: true reviews_count: 4 category: "Comp Cams" url: https://www.desertcart.jp/products/37816821-comp-cams-54-602-11-big-mutha-thumpr-235-249 store_origin: JP region: Japan --- # 0.573/0.558 Valve Lift 109° Lobe Separation 2,600-6,800 RPM Range COMP Cams 54-602-11 Big Mutha' Thumpr 235/249 Hydraulic Roller Cam for GM LS GEN III/IV **Brand:** comp cams **Price:** ¥110396 **Availability:** ✅ In Stock ## Summary > 🚀 Rev Up Your Ride with the Big Mutha' Thumpr! ## Quick Answers - **What is this?** COMP Cams 54-602-11 Big Mutha' Thumpr 235/249 Hydraulic Roller Cam for GM LS GEN III/IV by comp cams - **How much does it cost?** ¥110396 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/37816821-comp-cams-54-602-11-big-mutha-thumpr-235-249) ## Best For - comp cams enthusiasts ## Why This Product - Trusted comp cams brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Optimal Overlap:** Early intake valve opening and extended exhaust duration for a hard-hitting exhaust note. - • **Unleash the Beast:** Transform your ride with a rough idle that commands attention. - • **Tailored for Muscle:** Perfectly designed for muscle cars and street rods, ensuring a thrilling drive. - • **Precision Performance:** Engineered for 9.5:1 compression and 2800+ stall for peak power. - • **American Craftsmanship:** Proudly made in the USA, delivering quality you can trust. ## Overview The COMP Cams 54-602-11 Big Mutha' Thumpr is a high-performance hydraulic roller cam designed for GM LS GEN III/IV engines. With a 235/249 duration at .050”, a 109-degree lobe separation angle, and valve lifts of 0.573/0.558, this cam is engineered for street and strip applications, providing exceptional horsepower gains and a powerful exhaust note. Ideal for muscle cars and street rods, it requires specific engine configurations for optimal performance. ## Description Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. ## Features - Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers, very rough idle. - 2,600-6,800 RPM Operating Range - 235/249 Duration at .050". 109 Degree Lobe Separation Angle - 0.573/0.558 Valve Lift - Early intake valve opening and long exhaust duration create optimum overlap for powerful, hard-hitting exhaust note. Best with aftermarket converters and more rear gear. - Perfect choice for muscle cars and street rods - Three unique cam designs: Thumpr, Mutha' Thumpr and Big Mutha' Thumpr deliver excellent horsepower gains and broad torque curve. - Fits GM LS GEN III/IV LS. 3-Bolt Configuration. - Made in USA ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B001P24PPI | | Auto Part Position | Rear | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #673,175 in Automotive ( See Top 100 in Automotive ) #273 in Automotive Replacement Engine Camshafts | | Brand | Comp Cams | | Brand Name | Comp Cams | | Color | Black | | Compatible with Vehicle Type | Cars | | Customer Reviews | 4.7 out of 5 stars 13 Reviews | | Exterior Finish | Machined | | Global Trade Identification Number | 00036584195184 | | Included Components | COMP Cams Thumpr Hydraulic Roller Camshafts 54-602-11 | | Item Dimensions D x W x H | 3"D x 25"W x 3"H | | Item Weight | 9.83 Pounds | | Manufacturer | COMP Cams | | Manufacturer Part Number | 54-602-11 | | Manufacturer Warranty Description | Manufacturer | | Model Number | 54-602-11 | | OEM Equivalent Part Number | N | | UPC | 036584195184 | | Vehicle Service Type | Cars | ## Images ![COMP Cams 54-602-11 Big Mutha' Thumpr 235/249 Hydraulic Roller Cam for GM LS GEN III/IV - Image 1](https://m.media-amazon.com/images/I/51ehDRouBWL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by T***T on January 21, 2025* ### ⭐⭐⭐⭐⭐ Review *by M***. on March 10, 2024* ### ⭐⭐⭐⭐⭐ Review *by M***E on May 27, 2016* --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/37816821-comp-cams-54-602-11-big-mutha-thumpr-235-249](https://www.desertcart.jp/products/37816821-comp-cams-54-602-11-big-mutha-thumpr-235-249) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-22*