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Flat Tappet Motor Oil
#1008016
06/06/11 07:08 PM
06/06/11 07:08 PM
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Joined: May 2005
Posts: 127
Missoula, Montana
ChadP
OP
member
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OP
member
Joined: May 2005
Posts: 127
Missoula, Montana
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I'm sure this has been talked about before...but what oil are you using for big blocks? High zinc, added Molly - what brand do you like?
'65 Coronet 500
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Re: Flat Tappet Motor Oil
[Re: Junky]
#1008021
06/07/11 01:05 PM
06/07/11 01:05 PM
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Joined: Jan 2003
Posts: 5,894
Florida
Locomotion
master
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master
Joined: Jan 2003
Posts: 5,894
Florida
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Most oils, including diesel, have been lowering thier zinc content and it's not easy to keep up or find current numbers. They have diesel oil specifically for 2007 & newer diesels with low zinc because zinc doesn't get along well with the newer catalytic converters. Find CURRENT numbers or call the manufacturer. Amsoil has a wide selection of high zinc diesel and car engine oils that offer benefits in addition to their higher zinc content. I use the 5w-20 Dominator in my race car. Amsoil high zinc selection Amsoil source and info.
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Re: Flat Tappet Motor Oil
[Re: babarracuda]
#1008027
06/07/11 08:59 PM
06/07/11 08:59 PM
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Joined: Jul 2006
Posts: 4,319
Puyallup, WA
StealthWedge67
master
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master
Joined: Jul 2006
Posts: 4,319
Puyallup, WA
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I'm currently running the Summit brand racing oil. There's plenty of options these days.
LemonWedge - Street heavy / Strip ready - 11.07 @ 120
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Re: Flat Tappet Motor Oil
[Re: can.al]
#1008030
06/07/11 10:09 PM
06/07/11 10:09 PM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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quaker state 10w-40 from walmart
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: Flat Tappet Motor Oil
[Re: ChadP]
#1008032
06/08/11 01:56 PM
06/08/11 01:56 PM
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Joined: Feb 2010
Posts: 79
Finland
CarelianCuda
member
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member
Joined: Feb 2010
Posts: 79
Finland
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Valvoline VR1 Racing Oil 20W-50. Zinc/Phosphorus m%, 0.14/0.13
1970PlymouthCuda383
1970AMCHornet2D232
2003TruckmastersOkenosDurangoSlt+
2008DodgeChallengerSRT8
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Re: Flat Tappet Motor Oil
[Re: ChadP]
#1008033
06/08/11 02:41 PM
06/08/11 02:41 PM
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Joined: Mar 2003
Posts: 4,848
Memphis
HemiRick
master
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master
Joined: Mar 2003
Posts: 4,848
Memphis
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Shell Rotella T 15/40 I run it in all my flat tappet cars.
Take care,
Rick
68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451
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Re: Flat Tappet Motor Oil
[Re: 70AARcuda]
#1008037
06/09/11 12:04 AM
06/09/11 12:04 AM
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Joined: Feb 2003
Posts: 8,020
Pangaea
B5 Bee
master
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master
Joined: Feb 2003
Posts: 8,020
Pangaea
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Quote:
quaker state 10w-40 from walmart
That's what I have been running lately, good ol' Quaker Sludge! I do add a bottle of 'ZDDP Plus' to boost the zinc/phos up. No Fram for me, I run a Wix 51515 from the group buy.
Last year I picked up 10 - 5gal jugs when they were $10, now they are $11.50.
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Re: Flat Tappet Motor Oil
[Re: Ramrod39]
#1008041
06/09/11 09:08 AM
06/09/11 09:08 AM
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Joined: May 2003
Posts: 15,487
Florida
scratchnfotraction
I Live Here
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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Quote:
OK, what's an EDM lifter?
has a small hole drill in the flat bottom that slides on the cam lobe
it oils the lifter/cam lobe so it rides on a thin film of oil to reduce wear.
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Re: Flat Tappet Motor Oil
[Re: scratchnfotraction]
#1008042
06/09/11 11:04 AM
06/09/11 11:04 AM
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Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
64Post
master
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master
Joined: Aug 2003
Posts: 8,716
Baltimore/Denver
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Quote:
Quote:
OK, what's an EDM lifter?
has a small hole drill in the flat bottom that slides on the cam lobe
it oils the lifter/cam lobe so it rides on a thin film of oil to reduce wear.
I feel the faster the ramp speed/the higher spring pressures an EDM lifter is cheap insurance. I suppose using them on a purple shaft-type cam could also give someone peace of mind. 
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