SKU: 6459085720

MASSIVE High Lift Performance Valve Spring and Retainer Kits

$161.07 $178.97
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  • USA
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

MASSIVE High Lift Performance Valve Spring and Retainer KitsHigh Lift Valvetrain kit includes high rate springs and lightweight titanium retainers for maximum performance. A must for high boost, higher lift cams and high RPM use. MACM'17060 Zetec set Compatible with 2. 0 DOHC Zetec engine found in Ford Focus Escort ZX2 Contour Cougar Mystique Escpape Tribute MAriner Will NOT Fit Focus with SVT MACM'170xx Duratec Set Compatible with 2. 0 2. 3 2. 5 Ford Duratec Mazda MZR Ford Ecoboost Engines Found in Ford Focus

High Lift Valvetrain kit includes high rate springs and lightweight titanium retainers for maximum performance. A must for high boost, higher lift cams and high RPM use.

MACM'17060 - Zetec set  - Compatible with 2.0 DOHC Zetec engine found in Ford Focus Escort ZX2 Contour Cougar Mystique Escpape Tribute MAriner 

Will NOT Fit Focus with SVT

MACM'170xx - Duratec Set - Compatible with 2.0 2.3 2.5 Ford Duratec / Mazda MZR / Ford Ecoboost Engines Found in Ford Focus Escape Ranger Mustang Bronco Fusion Transit Connect Cmax etc ete - Mazda 3 5 6 MS3 6 Mazdaspeed CX-7 

Chromium Silicon Spring material improves fatigue life

6AL4V Titanium retainers turned in house.  7 Degree lock taper

Zetec retainers are 1 gram lighter than OEM

 

Zetec Specs:  Spring Pressure: Seat: 1.400" / 66 lbs / Nose: 0.950" @174 lbs / Coil Bind: 0.860"

 

 Some Zetec castings may require slight opening up of spring pocket area for clearance. Contact Massive for service and/or tool.

Much lighter than kits that use steel / oem retainer such as Piper Kent Burton 

Great replacement for now discontinued Crane comp Crower Ferrea

 

MACM'17065 - Duratec Specs:  Spring Pressure: Seat: 1.400" @ 66 lbs / Nose: 1.000 " @161 lbs / Coil Bind: 0.860"

Duratec / MZR / Ecoboost I4 2.0 2.3 2. 5 Crower 84170 replacement
Zetec 2.0 Crower 84169 Replacement  (not for SVT - see our Cat cams springs/retainers for that application)
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 6459085720

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    4.1 ★★★★★
    Based on 26 reviews
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    Product Reviews
    P
    Verified Purchase
    Patricia Randle
    Los Angeles, US
    ★★★★★ 5
    Good buy
    Love these. Easy clean up and use. As described
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 7, 2026
    R
    Rachel
    Chelsea, US
    ★★★★★ 4
    Value, Durability, Everyday Use
    What I liked: - Price-to-value is the standout. These were significantly better priced than similar packs I’ve bought from local grocery stores and big discount retailers. - For everyday, disposable use—think casseroles, baked pasta, brownies, roasted veggies—the lighter weight is perfectly fine. - They stack neatly and are easy to store, which matters when you’re buying in bulk. What I didn’t like: - They’re a bit flimsier and not as thick as the store-brand pans I’ve used before. You can feel the difference when you handle them. - For heavier dishes (large lasagnas, big roasts, or anything dense with sauces), a single pan can flex more than I’d like. How I used them: - Over the past couple of weeks, I’ve used these for baking brownies, roasting chicken thighs with vegetables, and prepping freezer meals. When I expected more weight or lots of liquid, I doubled up the pans, which solved the flex issue and kept everything stable. - I also tested bending one to compare sturdiness. In the accompanying video, you’ll see me gently flexing the pan to show the “give.” In the photo, I placed this pan next to a thicker pan I bought at a regular store so you can see the difference in gauge. My takeaway: - If you need heavy-duty pans for very weighty dishes, these aren’t a perfect one-for-one replacement for thicker, premium options. However, for routine baking, storage, and serving—especially when you plan to toss the pan afterward—the cost savings make a lot of sense. - Doubling them for heavier recipes is a simple workaround that maintains stability while still keeping the overall cost lower than buying thicker single-use pans. Verdict: - I’ll be purchasing these again for everyday use and bulk meal prep. The value is strong, and the performance is solid when you match the pan to the job or double up as needed.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 15, 2026
    R
    Verified Purchase
    Rose S.
    Birmingham, US
    ★★★★★ 5
    Easy clean up
    Sturdy. Various uses.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on March 7, 2026
    C
    Verified Purchase
    Cindy Talley
    Carnegie, US
    ★★★★★ 5
    pans
    good
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 31, 2026
    M
    Verified Purchase
    Monstee71
    San Leandro, US
    ★★★★★ 2
    Terrible!!
    VERY lightweight and flimsy. I wouldn't trust these pans with anything! Oh... they might be okay for serving potato chips or popcorn.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 24, 2026

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