Previous Thread
Next Thread
Print Thread
Page 1 of 2 1 2
Oil tube block mod #3003952
01/10/22 10:07 PM
01/10/22 10:07 PM
Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
VernMotor Offline OP
master
VernMotor  Offline OP
master

Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
Anyone know why this was done. I don't understand this.

271778204_10159482553515202_7812451570782830419_n.jpg271748960_10159482553435202_1065994859387365229_n.jpg
Re: Oil tube block mod [Re: VernMotor] #3003978
01/10/22 11:25 PM
01/10/22 11:25 PM
Joined: Aug 2003
Posts: 43,007
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,007
Bend,OR USA
They probably wanted to prevent oil pressure loss if a right bank lifter popped out of the lifter bores, I would have used a much smaller line (1/8 to maybe 1/4 inch O.D.) to oil the driver side lifter oil galley to reduce the oil pressure loss if one of them came out twocents
I've had blocks bush in all 16 lifter bores to do the same thing as well as fix any of them that were too big on the I.D. or made crooked up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Oil tube block mod [Re: Cab_Burge] #3003989
01/11/22 12:07 AM
01/11/22 12:07 AM
Joined: Dec 2005
Posts: 11,408
Fulton County, PA
C
CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
C

Joined: Dec 2005
Posts: 11,408
Fulton County, PA
Looks like they were minimizing the tube that was (is?) used in small block mods to bypass oil into the left galley in order to slow down the oil flow through the system and/or prioritize oiling to #1 main. Even though the big block system is plumbed differently. That was some 70s and 80s tech that I never got on board with. There are other, better ways to fix these.

If you're going to run a mechanical cam, the left galley should be made dry as it does nothing but oil the lifters. Bushing the lifter bores is almost a necessity for high RPMs and a good idea for everything else to control those 16 massive internal oil leaks.


If the results don't match the theory, change the theory.
Re: Oil tube block mod [Re: CMcAllister] #3004274
01/11/22 07:26 PM
01/11/22 07:26 PM
Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
VernMotor Offline OP
master
VernMotor  Offline OP
master

Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
Not sure why you would want to do that. Most of us block it off so no oil gets there. But we run flat tappet cam. no reason to have oil there. More oil goes down to the mails and rods.

Re: Oil tube block mod [Re: VernMotor] #3004279
01/11/22 07:36 PM
01/11/22 07:36 PM
Joined: Jan 2005
Posts: 12,408
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 12,408
Kalispell Mt.
Maybe they thought they needed to feed more oil to the lifters to keep the cam from going flat?


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Oil tube block mod [Re: VernMotor] #3004283
01/11/22 07:41 PM
01/11/22 07:41 PM
Joined: Dec 2005
Posts: 11,408
Fulton County, PA
C
CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
C

Joined: Dec 2005
Posts: 11,408
Fulton County, PA
Originally Posted by VernMotor
Not sure why you would want to do that. Most of us block it off so no oil gets there. But we run flat tappet cam. no reason to have oil there. More oil goes down to the mails and rods.


Only reason to oil the lifters from the galleys, as opposed to bushing the bores, is if you are using hydraulics or oiling the heads through the pushrods. Can still be bushed and drilled instead of having those huge oil leaks.


If the results don't match the theory, change the theory.
Re: Oil tube block mod [Re: HotRodDave] #3004286
01/11/22 07:44 PM
01/11/22 07:44 PM
Joined: Dec 2005
Posts: 11,408
Fulton County, PA
C
CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
C

Joined: Dec 2005
Posts: 11,408
Fulton County, PA
Originally Posted by HotRodDave
Maybe they thought they needed to feed more oil to the lifters to keep the cam from going flat?


Not going to help unless you have EDM lifters. Still don't need those huge holes feeding that lifter.


If the results don't match the theory, change the theory.
Re: Oil tube block mod [Re: CMcAllister] #3004287
01/11/22 07:48 PM
01/11/22 07:48 PM
Joined: Jan 2005
Posts: 12,408
Kalispell Mt.
H
HotRodDave Offline
I Live Here
HotRodDave  Offline
I Live Here
H

Joined: Jan 2005
Posts: 12,408
Kalispell Mt.
Originally Posted by CMcAllister
Originally Posted by HotRodDave
Maybe they thought they needed to feed more oil to the lifters to keep the cam from going flat?


Not going to help unless you have EDM lifters. Still don't need those huge holes feeding that lifter.


Didn't say it would, just speculating on the thought process that went into that mod.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: Oil tube block mod [Re: HotRodDave] #3004299
01/11/22 08:10 PM
01/11/22 08:10 PM
Joined: Dec 2003
Posts: 1,400
Wi.
old_racer Offline
pro stock
old_racer  Offline
pro stock

Joined: Dec 2003
Posts: 1,400
Wi.
I think they did it to get oil down to the mains quicker, on a stock motor the oil goes down the pass side crosses over in the back then runs all the way to the front on the dr side when it dead ends then the oil can be forced down to the mains, by filling the dr side with that tube as soon as the motor is started you don't have to wait for the oil to run it's normal course before feeding the mains. makes sense?

Re: Oil tube block mod [Re: old_racer] #3004304
01/11/22 08:21 PM
01/11/22 08:21 PM
Joined: Dec 2005
Posts: 11,408
Fulton County, PA
C
CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
C

Joined: Dec 2005
Posts: 11,408
Fulton County, PA
Originally Posted by old_racer
I think they did it to get oil down to the mains quicker, on a stock motor the oil goes down the pass side crosses over in the back then runs all the way to the front on the dr side when it dead ends then the oil can be forced down to the mains, by filling the dr side with that tube as soon as the motor is started you don't have to wait for the oil to run it's normal course before feeding the mains. makes sense?


The only thing fed from the left side on a BB is lifters. The theory is oil is rushing through the right side so quickly, as it has to feed the mains AND the left side from the end of the right galley, that the oil can't make the sharp turn to the main feed passages.

My theory is, plug or drastically reduce all the dang leaks so the oil isn't rushing through the system, squirting out all over the place, and can keep the crank full and under pressure.

High RPMs is where the issues show up.


If the results don't match the theory, change the theory.
Re: Oil tube block mod [Re: CMcAllister] #3004366
01/11/22 10:34 PM
01/11/22 10:34 PM
Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
VernMotor Offline OP
master
VernMotor  Offline OP
master

Joined: Nov 2003
Posts: 7,348
Mt.Vernon ,Ohio
The guy has this block and a stock steel crank for sale for 2100.00 !!

Re: Oil tube block mod [Re: VernMotor] #3004456
01/12/22 09:14 AM
01/12/22 09:14 AM
Joined: Dec 2004
Posts: 10,550
Rittman Ohio
fourgearsavoy Offline
I Live Here
fourgearsavoy  Offline
I Live Here

Joined: Dec 2004
Posts: 10,550
Rittman Ohio
Originally Posted by VernMotor
The guy has this block and a stock steel crank for sale for 2100.00 !!


Seems high to me eek

Gus beer


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: Oil tube block mod [Re: fourgearsavoy] #3004535
01/12/22 01:30 PM
01/12/22 01:30 PM
Joined: Dec 2005
Posts: 11,408
Fulton County, PA
C
CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
C

Joined: Dec 2005
Posts: 11,408
Fulton County, PA
Originally Posted by fourgearsavoy
Originally Posted by VernMotor
The guy has this block and a stock steel crank for sale for 2100.00 !!


Seems high to me eek

Gus beer


The price or the seller? Or both?


This may or may not have been involved before that price was set. Just sayin'


[Linked Image]


If the results don't match the theory, change the theory.
Re: Oil tube block mod [Re: old_racer] #3004543
01/12/22 01:42 PM
01/12/22 01:42 PM
Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
iagree Augments the crossover at the rear of the block.


The INTERNET, the MISinformation superhighway
Re: Oil tube block mod [Re: VernMotor] #3004552
01/12/22 02:00 PM
01/12/22 02:00 PM
Joined: Jan 2003
Posts: 14,479
So. Burlington, Vt.
F
fast68plymouth Offline
I Live Here
fast68plymouth  Offline
I Live Here
F

Joined: Jan 2003
Posts: 14,479
So. Burlington, Vt.
I don’t see any benefit to stealing oil from the main feed from the pump, before it even gets into the main gallery.......and sending it to the pass side lifter gallery.

I’m not seeing it benefiting any of the bearings.

More oil to the drivers side lifters....... for whatever that might be worth.

Maybe in some race application that required running hyd lifters, where they felt the oil supply to the drivers side was compromised and caused lifter bleed down issues at high rpm.
Like NHRA Stock eliminator before the Schubeks came on the scene.
Nowadays you can just run solids.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Oil tube block mod [Re: fast68plymouth] #3004576
01/12/22 02:42 PM
01/12/22 02:42 PM
Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 25,618
Rio Linda, CA
Originally Posted by fast68plymouth
I don’t see any benefit to stealing oil from the main feed from the pump, before it even gets into the main gallery.......and sending it to the pass side lifter gallery.


The mod sends it to the drivers side gallery.


The INTERNET, the MISinformation superhighway
Re: Oil tube block mod [Re: fast68plymouth] #3004577
01/12/22 02:46 PM
01/12/22 02:46 PM
Joined: Dec 2005
Posts: 11,408
Fulton County, PA
C
CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
C

Joined: Dec 2005
Posts: 11,408
Fulton County, PA
iagree However, the only thing being lubed from that galley is the lifters. 8 large leaks spraying oil that could be better used on the crank.

Putting oil in at the end of the system there basically fills the galleries from both ends. Intended to stop the oil from flowing through and ensuring the entire system is consistently full and pressurized.

Again, solid lifters or not oiling the top end through the pushrods, or oiling the heads externally, plug the left galley and make it dry, eliminating the problem.

Using an internal auxiliary hose/tube can be beneficial, if the left galley is plugged and the oil is plumbed into the rear of the right galley, filling it equally from both ends.

Last edited by CMcAllister; 01/12/22 02:50 PM.

If the results don't match the theory, change the theory.
Re: Oil tube block mod [Re: John_Kunkel] #3004586
01/12/22 02:59 PM
01/12/22 02:59 PM
Joined: Jan 2003
Posts: 14,479
So. Burlington, Vt.
F
fast68plymouth Offline
I Live Here
fast68plymouth  Offline
I Live Here
F

Joined: Jan 2003
Posts: 14,479
So. Burlington, Vt.
Originally Posted by John_Kunkel
Originally Posted by fast68plymouth
I don’t see any benefit to stealing oil from the main feed from the pump, before it even gets into the main gallery.......and sending it to the pass side lifter gallery.


The mod sends it to the drivers side gallery.


Right...... typo on my part.

Oil is diverted into the drivers side gallery from the main feed out of the pump.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Oil tube block mod [Re: fast68plymouth] #3004860
01/13/22 12:40 PM
01/13/22 12:40 PM
Joined: Jan 2003
Posts: 1,599
westerly, ri. usa
4
440lebaron Offline
pro stock
440lebaron  Offline
pro stock
4

Joined: Jan 2003
Posts: 1,599
westerly, ri. usa
i would just plug it, looks like it would be a big oil pressure loss, he may have had cam issues?


all parts are sold as is, all parts are considered used no warranties or returns
paypal/check/money order, shipping is from zip 02891, buyer pays paypal fees 24% IRS 1099A plus 3% of part price, check/money order preferred
site is not monitored 24/7 there might be a delay in response

Re: Oil tube block mod [Re: 440lebaron] #3004899
01/13/22 02:20 PM
01/13/22 02:20 PM
Joined: Dec 2005
Posts: 11,408
Fulton County, PA
C
CMcAllister Offline
Mr. Helpful
CMcAllister  Offline
Mr. Helpful
C

Joined: Dec 2005
Posts: 11,408
Fulton County, PA
Originally Posted by 440lebaron
i would just plug it, looks like it would be a big oil pressure loss, he may have had cam issues?


Cam is oiled from the mains. 5 more big leaks.


If the results don't match the theory, change the theory.
Page 1 of 2 1 2






Powered by UBB.threads™ PHP Forum Software 7.7.1