SKU: 68378583043

Massive Speed Crankshafts and Drive Gears

Sale price$134.46 Regular price$149.40
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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.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 68378583043

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Philip Giuliano
Dallas, US
★★★★★ 5
Great value
I recently had to replace the starter on my 2001 325i E46 with about 150k miles. While I had the intake off, I figured it would be a good time to replace the CCV because I was unsure if it had ever been done. My old CCV literally fell apart as I removed it, so I'm glad I replaced it. The new parts were a little tough to put together, but overall came together well enough. A lot can be forgiven for the price. I would recommend assembling the system before installing in your vehicle to get a good sense of how it all goes together and to hopefully loosen up the fittings just a tad before installation. 50skid on youtube has a great DIY for doing this job. I only finished this job yesterday, but my car has been running great. I can't yet confirm, but this may have solved my running lean problem.
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Reviewed in the United States on January 27, 2023
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Verified Purchase
Craig Randall
Pawtucket, US
★★★★★ 3
Cheap plastic parts -- good fit
They are what they are: Cheap plastic parts. They fit, but long-term durability will be a challenge. Probably will buy from FCP Euro going forward (and just did for a fuel line replacement).
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Reviewed in the United States on March 12, 2024
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ruben rodriguez
Lexington, US
★★★★★ 5
2001 325i
Great quality fits perfect durable. no more leaks works great. Great price.
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Reviewed in the United States on September 29, 2024
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Farrin Johnson
Lowell, US
★★★★★ 1
Does not connect
First the hoses do not connect together causing all kinds of vacuum leaks. There is no rifling in the diaphragm so oil leaks back up. Cheap piece of plastic
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Reviewed in the United States on June 9, 2022
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Dar ER
Belleville, US
★★★★★ 5
Amazon size charts need help
Size: Small, Color: Dark Denim
The dress is sharp. Well made. The Amazon size guide and AI size helper not so great. It was suggested to me to order a size large. Well I knew that was wrong so I went with the medium due to size chart. Still way too big. Had to return the medium and order a small . That also was too big and now had to order an XS . What a hassle. Please correct the size chart. Would very much appreciate the accessories listed that the model is wearing such as who’s boots she is wearing
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Reviewed in the United States on January 16, 2026

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