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Speedway Ford 302-351W Premium Noisy Gear Drive

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Speedway Ford 302-351W Premium Noisy Gear Drive

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Q & A (4)

What's in the Box

Info

These Speedway Premium Gear Drives are made in the USA. Superior quality makes this the choice of engine builders everywhere. Fits 1972-1988 Ford 302 & 351W Small Block V8.

  • All gears are 8620 carburized steel
  • Timing adjusted with 3 keyway crank
  • Includes cam button, lockplate, and bolts
  • Noisy
915-78420 Instructions (pdf) 

Notes

  1. Fuel Pump Eccentric Applications: This gear is for use with one piece fuel pump eccentric (Ford part number C3AZ-6287-B) generally found in engines manufactured prior to 1975. However, the 2 piece style eccentric can be bolted up. The two piece style is functional and will work if there is sufficient clearance to the front cover. Check the cover clearance for 2 piece eccentric use.
  2. This set is equipped with a 3 keyway crank gear to provide standard factory timing, 2 degrees camshaft advance, and 2 degrees camshaft retard. Aligning "0", "A", & "R" mark on crank gear with the "0" mark on cam gear provides these 3 valve timing options.

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Product Q&A

4 questions : 4 answers

1 answers

Why are these called "noisy" gear drive timing gears?

6String
Wisconsin, USA
February 25, 2013

Why are these called "noisy" gear drive timing gears?

Answers

February 26, 2013
Jason
This SB Ford Noisy Gear Drive (915-78420)or even the Standard Gear Drive Version (915-78421) will make a considerable whine, somewhat like a blower. Noisy versus Standard is done by the gear cut and or tighter or looser gear lash. The "noisy" version will make a louder whine. These Gear Drives are not to be used with factory roller camshafts.
1 answers

will these fit on a 302w dart block?

australia
January 29, 2011

will these fit on a 302w dart block?

Answers

February 03, 2011
Waymon
Thank you for your interest in our S/B FORD NOISY GEAR DRIVE, Item #: 91578420. This Gear Drive is for a 1972-1988 Ford 302 / 351 Windsor engine. It will work on your 302 c.i. Dart block if the camshaft is in the stock location and not raised for stroker crankshaft clearance location.
1 answers

Will this fit a 94 roller block with carburetor swap and front cover swap to mechanical fuel pump?

Tim
Colorado
August 03, 2015

Will this fit a 94 roller block with carburetor swap and front cover swap to mechanical fuel pump?

Answers

August 04, 2015
Wayne
Expert
Unfortunately this gear set is not to be used to drive a factory roller camshaft, so therefore I would not recommend it for your application.
1 answers

Will this set work in my 1988 f250 with a 5.8l 351?

Mech
Big Pitney WY.
October 13, 2015

Will this set work in my 1988 f250 with a 5.8l 351?

Answers

October 13, 2015
Eric
Expert
Yes this gear drive will fit your 1988 F250 with a 5.8L engine.
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