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Big Block Oil Pump Size? #1191086
03/04/12 05:03 PM
03/04/12 05:03 PM
Joined: Sep 2010
Posts: 40
Santa Cruz, Ca
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4woody Offline OP
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4woody  Offline OP
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Joined: Sep 2010
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Santa Cruz, Ca
I'm doing an engine swap and trying to make a 383 fit in my '38 Chrysler frame.

Is there a size (depth) difference between an HV Oil pump and a std pump?

I've got an HV, but don't have a std one to measure.

Tia

Re: Big Block Oil Pump Size? [Re: 4woody] #1191087
03/04/12 05:10 PM
03/04/12 05:10 PM
Joined: Nov 2007
Posts: 21,844
Kirkland, Washington
Pacnorthcuda Offline
Too Many Posts
Pacnorthcuda  Offline
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Posts: 21,844
Kirkland, Washington
Yes, the HV units are "taller" thats how they work. I think its something like .300"

Re: Big Block Oil Pump Size? [Re: Pacnorthcuda] #1191088
03/04/12 05:40 PM
03/04/12 05:40 PM
Joined: Sep 2010
Posts: 40
Santa Cruz, Ca
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4woody Offline OP
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4woody  Offline OP
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Posts: 40
Santa Cruz, Ca
I figured they were taller- I just didn't know how much. How sure are we about the .3" difference?

Could anyone -PLEASE- measure one for me??

Re: Big Block Oil Pump Size? [Re: 4woody] #1191089
03/04/12 06:41 PM
03/04/12 06:41 PM
Joined: Feb 2005
Posts: 4,318
Prospect, PA
BSB67 Offline
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BSB67  Offline
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Prospect, PA
Rotor is .94 on the std.

Re: Big Block Oil Pump Size? [Re: BSB67] #1191090
03/04/12 09:09 PM
03/04/12 09:09 PM
Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
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bobs66440 Offline
top fuel
bobs66440  Offline
top fuel
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Joined: Mar 2010
Posts: 1,880
Out in Left Field, NY
I measured mine.

4-3/4" from mounting surface to top of round part where filter is (overall height)

2-3/4" from mounting surface to top of round part on body

2" from mounting surface to top of mounting bolts

In other words, it's 1/4 - 3/8" shorter


Re: Big Block Oil Pump Size? [Re: bobs66440] #1191091
03/05/12 01:12 AM
03/05/12 01:12 AM
Joined: Sep 2010
Posts: 40
Santa Cruz, Ca
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4woody Offline OP
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4woody  Offline OP
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Santa Cruz, Ca
Wow-
That .3" guess was pretty close!

Thanks for measuring.

Re: Big Block Oil Pump Size? [Re: 4woody] #1191092
03/05/12 09:48 PM
03/05/12 09:48 PM
Joined: Feb 2005
Posts: 4,318
Prospect, PA
BSB67 Offline
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BSB67  Offline
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Prospect, PA
Std. is .945" and the HV is 1.187". Difference is about .242", plus or minus a couple.







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