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bushing lifter bores on a sb #1810209
04/23/15 03:30 PM
04/23/15 03:30 PM
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Posts: 8,042
Mt Morris Michigan
mopar dave Offline OP
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anyone ever bush the lifter bores on a small block? was there a performance increase. just curious if small blocks are in need of this procedure. don't know if its worth the money spent.

Re: bushing lifter bores on a sb [Re: mopar dave] #1810215
04/23/15 03:43 PM
04/23/15 03:43 PM
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Romeo MI
MR_P_BODY Offline
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I've done it on most of my SB's... no you wont see any performance
gain but it might save your engine if a lifter flies out of a bore
wave

Re: bushing lifter bores on a sb [Re: mopar dave] #1810220
04/23/15 03:53 PM
04/23/15 03:53 PM
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PA.
pittsburghracer Offline
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I tube mine as its a lot CHEAPER.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time




Re: bushing lifter bores on a sb [Re: pittsburghracer] #1810227
04/23/15 04:06 PM
04/23/15 04:06 PM
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Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Originally Posted By pittsburghracer
I tube mine as its a lot CHEAPER.


I've done it both ways... if the bore angle is off the tube doesnt
do anything to correct that but the bushing job will... but it
does cost more
wave

Re: bushing lifter bores on a sb [Re: mopar dave] #1810298
04/23/15 05:54 PM
04/23/15 05:54 PM
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Toronto
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mshred Offline
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Unless the block is very important to you i.e. lots of machining already done, good expensive block or has some seriously loose lifter bores, I would just start with a different block. Bushing bores is a very expensive operation, and judging by your other thread, I think your oil pressure is more then enough as it is. If you really want to, you can tube the lifter gallery- much cheaper, but MUCH more time consuming...somewhat crude, and a [censored] to do, but it will increase your oil pressure.

To be honest, I have asked about oil pressure related stuff many times, and based on what you said yours runs at, I think your good...Im no expert, but thats my 2 cents

Re: bushing lifter bores on a sb [Re: mshred] #1810310
04/23/15 06:05 PM
04/23/15 06:05 PM
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Romeo MI
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One other thing about tubing the block... that kit is discontinued
so you better know someone with the whole kit(its 2 kits) that will
loan it out.. I loaned my out a few years ago and it never came back
wave

Re: bushing lifter bores on a sb [Re: mopar dave] #1810335
04/23/15 06:47 PM
04/23/15 06:47 PM
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Lubbock,TX
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DavidDean Offline
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You can buy and modify what it takes to tube it. I've done several with good results .The last few I had a machine shop drill and ream the galley and I was able to do the rest. In my X block I tubed both sides as my indy heads used push rod oiling, I drilled a.100 in the lifter bores with the mopar lifter bore drilling tool. Unless your lifter bores are worn out the lifter bore broach sold by Hughes engines finishes them very well.

Re: bushing lifter bores on a sb [Re: DavidDean] #1810357
04/23/15 07:23 PM
04/23/15 07:23 PM

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crabman173
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I have never worried about saving and engine after a lifter comes out--if you ask me it is a little too late for that kind of hope and...you block the oil to stop the 16 leaks around the lifters--OK spend $900 plus to do it or...just plug the one side with a 2 cent drive in plug on drivers side and leave the other side alone --now you have spent two cents to stop up 8 of the leaks for a little better oiling--the other $899.98 seems excessive to stop the other 8 I know you get corrected lifter bores etc but really?
The old drill and peen package from Mopar was a joke--You need a drill bit easy available from tool store $20 --that reamer ain't going in those crooked factory holes--then you need $6 worth of plumbing pipe--then you need to grind a round nose on an old lifter--then you have it for less than $30 The lifter galley holes are drilled half way from rear and half way in from front --they meet but if it was a highway tunnel job no cars could pass --it is awful so a drill bit not a reamer is in order--besides if you use the reamer the pipe will not fit in the hole--way too tight--IMO many a good block has been ruined while folks learn how to do that operation--drive in the plug on one side and race your rear end off--easy breezy. Got an R block--going to make giant HP--then by all means have bores bushed--stock block? I think it is bif=ggest waste I have ever seen--

Last edited by crabman173; 04/23/15 07:26 PM.
Re: bushing lifter bores on a sb [Re: ] #1810365
04/23/15 07:36 PM
04/23/15 07:36 PM
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY Offline
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Originally Posted By crabman173
I have never worried about saving and engine after a lifter comes out--if you ask me it is a little too late for that kind of hope and...you block the oil to stop the 16 leaks around the lifters--OK spend $900 plus to do it or...just plug the one side with a 2 cent drive in plug on drivers side and leave the other side alone --now you have spent two cents to stop up 8 of the leaks for a little better oiling--the other $899.98 seems excessive to stop the other 8 I know you get corrected lifter bores etc but really?
The old drill and peen package from Mopar was a joke--You need a drill bit easy available from tool store $20 --that reamer ain't going in those crooked factory holes--then you need $6 worth of plumbing pipe--then you need to grind a round nose on an old lifter--then you have it for less than $30 The lifter galley holes are drilled half way from rear and half way in from front --they meet but if it was a highway tunnel job no cars could pass --it is awful so a drill bit not a reamer is in order--besides if you use the reamer the pipe will not fit in the hole--way too tight--IMO many a good block has been ruined while folks learn how to do that operation--drive in the plug on one side and race your rear end off--easy breezy. Got an R block--going to make giant HP--then by all means have bores bushed--stock block? I think it is bif=ggest waste I have ever seen--


I guess you havent tried to buy a R-block lately... good luck on it..
also the 2 tubes dont butt together.. both holes stop short of each
other in the middle so it doesnt matter if they line up... and I
have NEVER paid more than $500(just had it done) to have a block bushed
wave

Re: bushing lifter bores on a sb [Re: mopar dave] #1810392
04/23/15 08:04 PM
04/23/15 08:04 PM
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Posts: 1,532
off the grid
340B5 Offline
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Originally Posted By mopar dave
anyone ever bush the lifter bores on a small block? was there a performance increase. just curious if small blocks are in need of this procedure. don't know if its worth the money spent.


It straightens the lifter bores and gets them all pointing the same direction. Smallblocks get worn due to that ugly pushrod angle and they wear to an oval shape.


Yeah, it's got a smallblock.
Re: bushing lifter bores on a sb [Re: mopar dave] #1810426
04/23/15 08:44 PM
04/23/15 08:44 PM
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Mt Morris Michigan
mopar dave Offline OP
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Wow! A lot of good info. That's for that. Crabman, where exactly does the plug go. Not familiar with the oiling arraignment on sm.

Re: bushing lifter bores on a sb [Re: mopar dave] #1810438
04/23/15 09:00 PM
04/23/15 09:00 PM
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Affton MO
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qwkmopardan Offline
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You tap the feed hole from the front main saddle to the driver side lifter galley. Usually 3/8x16 and put a set screw in with red loc-tite. Turns oil off to the driver side lifters. The tubes go in the passenger side lifter galley. A little effort will make the engine stand a lot of abuse and live. All the leaking oil past the lifters will now go to the main and rod bearings instead. You can get really crafty and dam the oil up in the valley and return upper end oil through the driver side lifter galley behind the timing chain gear.

Demon engine has all these mods. and 1890 passes and counting. Crank and pistons never out of block from new. 418 c.i. in demon. 587 production cyl heads. 9.68 at 136mph

443c.i. short block


Re: bushing lifter bores on a sb [Re: qwkmopardan] #1810514
04/23/15 10:21 PM
04/23/15 10:21 PM
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Mt Morris Michigan
mopar dave Offline OP
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Where is the feed hole located and does the pass side have to be tubed along with it or is there a feed on pass that can be plugged as well?

Re: bushing lifter bores on a sb [Re: mopar dave] #1810547
04/23/15 10:49 PM
04/23/15 10:49 PM
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Affton MO
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qwkmopardan Offline
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The #1 main saddle has three holes that intersect just under bearing. One to cam bearing, one to the passenger side galley and one the driver side galley. You tap and plug the hole to the driver side galley. If you plug the hole to the pass. side galley the #1 main, #1rod and #1 cam bearing will get no oil as well as the driver side lifters. The pass side galley is the supply oil for #1,#2, #3 and #4 mains and #1-#7 rods. The #5 main and #8 rod get oil from the end of hole coming from the oil filter. The tubes go in the pass. side galley which will let oil flow, but stop leakage past lifters. You can get the .029 wall 9/16" brass tube from K+S metals. The tubes are a bit of a PITA to install and the hole has to be reamed with a long 9/16" drill before attempting to install.

If you turn oil off to driver side lifters and open up the holes from #2, #3, and #4 main saddle to pass. side galley to 9/32" it will be helpful. 340 blocks have 9/32" hole already.

Re: bushing lifter bores on a sb [Re: qwkmopardan] #1810553
04/23/15 10:55 PM
04/23/15 10:55 PM
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Mt Morris Michigan
mopar dave Offline OP
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OK thanks. I thought Crabman said tubing was a joke and just plugged the drivers side. What would that be doing with a plug to Dr side and no tube on pass?

Re: bushing lifter bores on a sb [Re: mopar dave] #1810561
04/23/15 11:08 PM
04/23/15 11:08 PM
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Romeo MI
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Originally Posted By mopar dave
OK thanks. I thought Crabman said tubing was a joke and just plugged the drivers side. What would that be doing with a plug to Dr side and no tube on pass?


If you want to see it and read about the tubing its in the MP SB
book
wave

Re: bushing lifter bores on a sb [Re: MR_P_BODY] #1810569
04/23/15 11:13 PM
04/23/15 11:13 PM
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Quicktree Offline
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bushing lifter bores on any serious motor is a no brainer imo. correcting the angle is a bonus. non R blocks are mighty thin though.

Re: bushing lifter bores on a sb [Re: Quicktree] #1810579
04/23/15 11:26 PM
04/23/15 11:26 PM
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Romeo MI
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Originally Posted By Quicktree
bushing lifter bores on any serious motor is a no brainer imo. correcting the angle is a bonus. non R blocks are mighty thin though.


I've never broke a lifter bore.. bushed or not.. have you Tony
wave

Re: bushing lifter bores on a sb [Re: mopar dave] #1810634
04/24/15 12:28 AM
04/24/15 12:28 AM
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monticello,ms
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Original "R" block

image.jpg

MOPAR BORN,MOPAR BRED,AND WHEN I DIE I'LL BE MOPAR DEAD!!!
Re: bushing lifter bores on a sb [Re: mopar dave] #1810636
04/24/15 12:30 AM
04/24/15 12:30 AM
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monticello,ms
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After repair

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MOPAR BORN,MOPAR BRED,AND WHEN I DIE I'LL BE MOPAR DEAD!!!
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