Re: What kind of break-in oil to use?
[Re: VITC_GTX]
#3052134
06/21/22 08:49 AM
06/21/22 08:49 AM
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Joined: Jan 2006
Posts: 2,373
White Plains, NY
VCODE
top fuel
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top fuel
Joined: Jan 2006
Posts: 2,373
White Plains, NY
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In the next week or two I'll be looking to fire up my rebuilt 383 (hydraulic flat tappet) . What break-in oil, or additive, and weight do you prefer? I like Penn1 30 Break in oil. Old name Brad Penn. Spoke with tech just the other day about the high zinc and was told it's the same oil and has not been changed. Bob.
Mom & Dad let me buy a brand new 70 Challenger R/T 440 Six-Pack Super Trac Pack when I was 17
(Robert what is a 440 Six-Pack)
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Re: What kind of break-in oil to use?
[Re: VITC_GTX]
#3052370
06/22/22 11:36 AM
06/22/22 11:36 AM
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Joined: Jan 2003
Posts: 74,978
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,978
U.S.S.A.
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In the next week or two I'll be looking to fire up my rebuilt 383 (hydraulic flat tappet) . What break-in oil, or additive, and weight do you prefer? What make cam? At least one cam maker sells their own labeled break in additive.
running up my post count some more .
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Re: What kind of break-in oil to use?
[Re: fourgearsavoy]
#3052608
06/23/22 08:12 AM
06/23/22 08:12 AM
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Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,357
Marion, South Carolina [><]
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I've used Joe Gibbs Driven break-in oil in the most recent flat tappet motors I've built and haven't had any issues. No need for any additive. About 4 years ago I used Valvoline VR1 race oil w/ Comp Cams break-in additive on a 440 hyd. flat tappet build. No problems w/ that one either. These were all fairly mild hydraulic flat tappet cam street engines. Anything aggressive, I prefer a roller. 
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: What kind of break-in oil to use?
[Re: jlatessa]
#3052697
06/23/22 12:18 PM
06/23/22 12:18 PM
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Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,493
So. Burlington, Vt.
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For every brand of break in oil and additive that’s available........ it’s someones favorite.
My favorite is the Driven “BR”, which is 15/50.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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