Re: Oil pump pickup size
[Re: topside]
#3084774
10/10/22 10:36 AM
10/10/22 10:36 AM
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Joined: Jan 2003
Posts: 13,402 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,402
Marion, South Carolina [><]
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![iagree iagree](/ubbthreads/images/graemlins/custom/iagree.gif) I'd just stick w/ 3/8". If it was a build where I was worried that much about oiling, I'd go straight to an external pickup system.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Oil pump pickup size
[Re: GTXMEX]
#3084893
10/10/22 04:10 PM
10/10/22 04:10 PM
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Joined: Aug 2003
Posts: 43,305 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,305
Bend,OR USA
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Thanks for the response! A big effort and any issues with increasing it to a 1/2"? Worthwhile or not? Absolutely not worth weakening the stock boss for the pickup by removing more material and taking a chance on it cracking when you're using a tap to make the new 1/2 inch NPT threads ![tsk tsk](/ubbthreads/images/graemlins/custom/tsk.gif) I've done that in the past back in the late 1990s and early 2000s, not any more after using a stock 3/8 pick up in my last 517 C.I. low deck pump gas stroker in my old Duster. I ended up shifting it at or a tiny bit above 7000 RPM (after multiple tests on shift point to get the best R/T, 60 Ft. and best ET,and) the high volume, high pressure Melling oil pump kept oil in all the right places, very good service with Valvoline VR 10/30Wt racing oil: up: ![scope scope](/ubbthreads/images/graemlins/custom/scope.gif) I forgot to mention that I run the full narrow groove Seal Power truck main bearings with.0035+ clearances and similar (.0030+) rod bearing clearances. In my opinion it is way better to have some extra bearing clearances instead of not QUITE having enough ![work work](/ubbthreads/images/graemlins/custom/work.gif) Thin(5W20, 10W30) multiweight oil is your friend ![up up](/ubbthreads/images/graemlins/custom/thumbs_up.gif)
Last edited by Cab_Burge; 10/10/22 09:45 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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