SKU: 68378583043

Massive Speed Crankshafts and Drive Gears

Sale price$134.46 Regular price$149.40
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

Massive Speed Crankshafts and Drive GearsOne fatal flaw of the Duratec MZR line since day one has been the complete lack of keys dowels locating devices on all of the cam timing components. While we're sure eliminating them made it far easier for robots to assemble the motors in production (and scared away shade tree mechanics from working on them), the possibility of slippage ensured disastrous results. The potential for slippage, while remote on a stone stock untouched grocery getter, was

One fatal flaw of the Duratec / MZR line since day one has been the complete lack of keys/dowels/locating devices on all of the cam timing components. While we're sure eliminating them made it far easier for robots to assemble the motors in production (and scared away shade tree mechanics from working on them), the possibility of slippage ensured disastrous results. The potential for slippage, while remote on a stone-stock-untouched-grocery-getter, was much more a threat on the modified, high RPM motors us folks like to build. 

Massive has stepped in and now offers a complete line up of keyed crank shafts and companion timing chain drive gears!!!

 

Cranks: 

We started with  NEW (high quality professionally remanufactured in the case of the 2.3 Ranger and 2.5 Dura - new from ford no longer available ) OEM crankshafts and added a proper key way to allow the timing chain drive gear to be positively locked to the crank in the event the crank pulley bolt should come loose. This will prevent COSTLY damage to your engine! Use with our keyed chain drive pulley.

2.0 Duratec - Factory FORGED Unit

2.3 Ecoboost - Factory FORGED Unit

2.3 Mazda DISI - Factory FORGED Unit

 

Gears: 

 

We started with A brand new Ford ? Mazda chain drive gear and EDM cut a proper keyway to allow the timing chain drive gear to be positively locked to the crank in the event the crank pulley bolt should come loose. This will prevent COSTLY damage to your engine! Use with our keyed crankshaft. Includes key.

We've always felt the cam gears don't need a key way or dowel - Allowing them to orbit whilst installing the timing chain is a must. Additionally, there is far less chance for slippage, reuse the now unnecessary diamond washers from the crank pulley on them if you please, run some loc-tite as well. 


Keyed gears and cranks are sold seperately

Modified IN HOUSE at Massive Speed's headquarters right here in the USA!!!

 

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: 68378583043

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tuck
Boise, US
★★★★★ 5
top wire.
Color: Black, Size: 10-feet
great wire, work like a charm, easy to handle, great for battery cables. priced right for size
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Reviewed in the United States on August 3, 2020
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Kelly Lidzy
New York, US
★★★★★ 5
Very nice
Color: Black, Size: 20 Feet
This is some nice wire vey fine strands. Makes great flexable batter cables
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Reviewed in the United States on September 8, 2024
D
Verified Purchase
David S.
Louisville, US
★★★★★ 5
This Solenoid is an adequate OEM replacement, at an incredible, low price.
Size: PP67-712 V1
This solenoid replaced a bad 350 Chev. Mercruiser starter Solenoid. It works perfectly with only a minor, simple modification of the mounting bracket . (Hole centers were slightly off needing only 1 new hole drilled on the engine bracket only. A very easy mod.) The Solenoid body itself is an exact match for the OEM and works flawlessly at a price that is literally 10 times less than what the Manufacturer charges.
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Reviewed in the United States on July 12, 2024
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Verified Purchase
Shelley Weddington
Battle Creek, US
★★★★★ 5
works perfect
Size: PP67-712 V1
Fixed my problem and good quality.
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Reviewed in the United States on September 11, 2025
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Verified Purchase
Mary B.
Natrona Heights, US
★★★★★ 5
Quality
Size: PP67-712 V1
Good as original quality. Heavy not lite like others
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Reviewed in the United States on March 6, 2026

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