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Author Topic: Fuel Pump Rod  (Read 5181 times)

Damon

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Fuel Pump Rod
« on: August 17, 2009, 01:12:54 AM »
So tonight I decided to set my Holley floats when all of a sudden the Camaro would no longer run (again), no fuel.  This is my 2nd new Holley (manual) fuel pump...  So I removed the pump, diassembled, and found the end of the pot metal arm that fastens to the plunger was broken again.  I removed the fuel pump mounting plate thinking my rod is to long, and now I believe it is.  It measures 5 15/16" long end to end and is a Comp Cams #4620.  In reviewing the Comp Cams website this part number is for an Oldmobile Rocket Block.  Anyone know for sure how long the stock SBC fuel pump rod should be?

Thanks,

Damon
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Damon

JohnZ

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Re: Fuel Pump Rod
« Reply #1 on: August 17, 2009, 04:15:02 PM »
All '55-up small-block Chevy fuel pump pushrods are 1/2" diameter by 5-3/4" long.
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Damon

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Re: Fuel Pump Rod
« Reply #2 on: August 17, 2009, 04:37:37 PM »
Just order the 4607 model Comp Cams SBC fuel pump rod...  Why the engine builder choose the 4620 Rocketblock I do not know.  Thanks for the measurement of 5.75", that explains why my fuel pumps only last about 10 minutes....

Damon
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