MASSIVE High Lift Performance Valve Spring and Retainer Kits
SKU: 6459085720

MASSIVE High Lift Performance Valve Spring and Retainer Kits

Sale price$161.07 Regular price$178.97
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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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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    4.6 ★★★★★
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    Kristi
    Phoenix, US
    ★★★★★ 5
    Great fit
    Size: 3T, Color: Light Grey Heather
    Very soft and great material. Stretchier than expected. Fit was great
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 2, 2026
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    Verified Purchase
    DANG
    Fort Morgan, US
    ★★★★★ 3
    Size up
    Size: Small, Color: Black
    Overall a good hoodie. Thin-ish to medium weight, but don’t expect heavy weight. It’s soft but of course since it’s on more on the thin side it loses its softness quick but for the price it’s good. It’s good to cricut heat transfer on.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on January 19, 2026
    K
    Verified Purchase
    Katie
    Cuba, US
    ★★★★★ 5
    Nice and heavy
    Size: Small, Color: Dark Green
    Nice quality, heavyweight. My child wears this all the time, it’s really nice.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 24, 2026
    A
    Verified Purchase
    Ajai
    Chelsea, US
    ★★★★★ 1
    Size is wayyyyy off
    Size: X-Large, Color: Black
    Super small ain’t no way this is an X-Large
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 7, 2026
    M
    Verified Purchase
    MaddDembinski
    Port Orchard, US
    ★★★★★ 5
    Runs small
    Size: 3T, Color: Black
    Runs just a little small. Maybe upsize, but great otherwise!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 28, 2026

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