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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: Labratt]
#1218538
04/19/12 12:16 AM
04/19/12 12:16 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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JMO Randy.... nope... you arent spinning high enough and its too easy to crack out(it gets real thin in the boss area)and if you do crack it out... then its a external pick up.......... again... JMO 
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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: Labratt]
#1218539
04/19/12 12:20 AM
04/19/12 12:20 AM
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Joined: Mar 2003
Posts: 2,490
PA
moparacer
top fuel
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top fuel
Joined: Mar 2003
Posts: 2,490
PA
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I have spun my 500ci 7400 at times with a 3/8 pickup and never had any issues.
That area looked way to thin for me to try drilling it and tapping it.
67 Barracuda street/bracket car 11.27-119
68 Dart 502 BB 8.70s-152
414 cid SB Dragster 7.65-174
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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: Labratt]
#1218541
04/19/12 12:27 AM
04/19/12 12:27 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Thanks for that info,Mike! I definately don't want to crack the block....and have to spend MORE money on an external set-up! This project is already setting me back a pretty penny!  
I hear ya.... stop on by.... I have a few Blues for ya... LOL
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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: Labratt]
#1218545
04/19/12 10:58 AM
04/19/12 10:58 AM
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Joined: Jan 2003
Posts: 17,836
S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,836
S.E. Michigan
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If by "block mod" you mean smoothing out the hard 90 degree turn the oil makes right after entering the block, I would say definitely do that. It is a 10 minute deal and costs nothing if you already have the tools. I don't think increasing the oil pickup to 1/2 is necessary, but it does not do any harm unless the procedure is messed up. At that point it does a whole bunch of harm  I would never do it to one that looked thin to begin with. So if there are any second thoughts, don't do it 
Rich H.
Esse Quam Videri
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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: ZIPPY]
#1218547
04/19/12 11:46 AM
04/19/12 11:46 AM
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Joined: Jan 2003
Posts: 4,031
Shelby Twp. Mi
HardcoreB
master
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master
Joined: Jan 2003
Posts: 4,031
Shelby Twp. Mi
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Quote:
If by "block mod" you mean smoothing out the hard 90 degree turn the oil makes right after entering the block, I would say definitely do that. It is a 10 minute deal and costs nothing if you already have the tools.
I don't think increasing the oil pickup to 1/2 is necessary, but it does not do any harm unless the procedure is messed up. At that point it does a whole bunch of harm I would never do it to one that looked thin to begin with. So if there are any second thoughts, don't do it
Yes X2 with Rich...leave it at 3/8" NPT but, using the 1/2" pipe tube. And get in the block with a carbide and radius the intersecting passages. I'd also ream the oil passages to the mains...I think it's a 17/64"
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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: HardcoreB]
#1218548
04/19/12 11:58 AM
04/19/12 11:58 AM
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Joined: Mar 2009
Posts: 1,058
bigfork mn
dragram440
super stock
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super stock
Joined: Mar 2009
Posts: 1,058
bigfork mn
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This post makes me feel alot better about my 3/8 pickup. I dont rev it past 6500. It seems to run about the same if I shift at 6800 or 6300 so I figured I might as well keep the r's down and save on the engine a little.
67' charger 499 RB
10.57 at 127
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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: 383man]
#1218550
04/19/12 12:52 PM
04/19/12 12:52 PM
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Joined: May 2005
Posts: 6,446
NJ-USA
HPMike
master
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master
Joined: May 2005
Posts: 6,446
NJ-USA
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Here is another thing that hasn't been mentioned yet, but is very important to note. The 1/2" pickup mod will/may limit your choices when going to a longer stroke. The boss(even with 2.200 rod pin) needs to be clipped to clear the rod big end with stroker setups. Plus now you have a larger diameter tube to contend with. Measure twice/cut once.  MB
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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: viperblue72]
#1218553
04/19/12 05:26 PM
04/19/12 05:26 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I don't really understand why it is necessary to begin with. Fluid can only flow as much as the smallest bottleneck. So rather you have a 20oz pepsi, or a 2qt pepsi bottle, it's gonna flow out the end of the bottle at the same rate. Maybe someone will correct me if I am wrong about my theory.
This is on the suction side... you ALWAYS try to
have a larger inlet to your pump... REMEMBER...
pumps dont suck... its still atmospheric pressure
pushing the oil in.. all the pump does is create the
negative pressure zone so the oil can get pushed in....
no difference than the intake and pistons(piston creates
the negative so atmospheric pressure can push in
the air/fuel
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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: Labratt]
#1218554
04/19/12 07:34 PM
04/19/12 07:34 PM
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Joined: Dec 2004
Posts: 10,551
Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,551
Rittman Ohio
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Good deal Randy  lots of 9 second cars out there with internal 3/8's pickups. I just spent about an hour smoothing the passages in the pump and pick-up passages on my engine Make sure you spend some time with a dremmel or die grinder on your oil pump Gus
64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
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Re: 3/8" to 1/2" OIL PICK-UP TUBE...AND BLOCK MOD?
[Re: Labratt]
#1218555
04/19/12 07:42 PM
04/19/12 07:42 PM
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Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
Chris2581
master
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master
Joined: Jan 2003
Posts: 6,531
Jacksonville, FL
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3/8th's on all of our engines..we don't go past 65-6800,so we don't feel the mod is needed.Never have had any bearing or oil related issues.
Nautilus Racing-
We use Superformance gaskets and Turbo Action converters/products.
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Chuck Senatore states in his book that it is. What are your opinions? Thanks,fella's! 
I shift my 518 motor at or above 7000 RPM on every run, stock Mopar 440 6 pak 3/8 pickup and 6 quart oil pan 
