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 Aug 2 - Aug 7

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For Your Every Summer RSVP, with Code: SUMMER15

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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    4.4 ★★★★★
    Based on 15 reviews
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    Verified Purchase
    Miguel Ángel de la cruz
    Lexington, US
    ★★★★★ 5
    La calidad
    Color: White, Size: Medium, Color: White, Size: Medium
    Súper excelente 10 de 10 le doy a este producto
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 13, 2026
    A
    Verified Purchase
    Amazon Customer
    San Leandro, US
    ★★★★★ 5
    LOOKS GOOD AND COMFY
    Color: Black, Size: Medium
    Liked the fit and feels comfortable.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 29, 2026
    H
    Verified Purchase
    Hiram
    Grantham, US
    ★★★★★ 4
    No wrinkles
    Color: Black, Size: X-Large
    Well made, material holds its shape with no wrinkles
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 3, 2026
    G
    Grace Gold
    Port Orchard, US
    ★★★★★ 5
    Nice fitting good quality polo shirt
    Color: White, Size: X-Large
    The Esabel.C Zipper Golf Shirt is a sharp, modern upgrade for your active wardrobe, especially if you’re heading to the golf course or planning a trip to Mexico. The lightweight, moisture-wicking pique fabric is incredibly breathable, ensuring you stay cool and dry even during a high-energy day at Busch Gardens. I really appreciate the quarter-zip design over traditional buttons, as it gives the shirt a sleek, athletic look that fits right in with your other high-performance fitness gear. For an X-Large, the stretch in the material provides a comfortable, relaxed fit that allows for a full range of motion during your swing or a casual afternoon out. Its crisp white finish offers a versatile, professional aesthetic that pairs perfectly with the carbon fiber sunglasses we discussed for a polished summer look.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 5, 2026
    R
    Rudeney
    Natrona Heights, US
    ★★★★★ 5
    Nice fit, cooling fabric
    Color: White, Size: Large
    This is a fantastic golf shirt. I'm a medium build 6'3", 42" chest and the large fits me very well with plenty of room for movement but still giving me a nice trim look. The moisture-wicking material is soft and breathable, with a small bit of stretch. I really like the zipper style and contrasting collar. It's easy to care for with machine wash and dry, and comes out wrinkle-free. This shirt is very well made and is a great value - I highly recommend it.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 28, 2026

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