Best oil to use in re-built 440?
#428694
08/04/09 05:41 PM
08/04/09 05:41 PM
|
Anonymous
OP
Unregistered
|
Anonymous
OP
Unregistered
|
Getting confusing opinions as to the best oil to use in my recently rebuilt 440. Engine is a D 440 HP built to pretty much stock specs with forged pistons, comp "6 pack cam". Used Dello at first, now builder says Dello had been reformulated and to use 20w-50 with an additive such as a bottle of Comp engine break-in. Others have varying opinions. Anyone have some advice?
|
|
|
Re: Best oil to use in re-built 440?
[Re: terzmo]
#428699
08/05/09 08:16 AM
08/05/09 08:16 AM
|
Joined: Mar 2007
Posts: 2,252 Sebring, Florida
Mopar Grandpa
top fuel
|
top fuel
Joined: Mar 2007
Posts: 2,252
Sebring, Florida
|
Seems like everyone has an opinion, some based on experience and others based on what they heard. I would suggest you call Comp Cams at 800-999-0853 and ask one of their engineers or get on their website www.compcams.com for the correct answer to your question.
|
|
|
Re: Best oil to use in re-built 440?
[Re: Robbins]
#428703
08/05/09 12:46 PM
08/05/09 12:46 PM
|
Joined: Jan 2003
Posts: 16,123 Grand Haven, MI
patrick
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 16,123
Grand Haven, MI
|
I run shell rotella 15W40 on all my flat tappet engines (stock slant 6, and 360 with comp XE262) and haven't had any problems so far....
1976 Spinnaker White Plymouth Duster, /6 A833OD 1986 Silver/Twilight Blue Chrysler 5th Ave HotRod **SOLD!*** 2011 Toxic Orange Dodge Charger R/T 2017 Grand Cherokee Overland 2014 Jeep Cherokee Latitude (holy crap, my daughter is driving)
|
|
|
Re: Best oil to use in re-built 440?
[Re: 71scamp440]
#428705
08/05/09 07:02 PM
08/05/09 07:02 PM
|
Joined: Mar 2006
Posts: 74 Stevensville, ON
Frank Raso
member
|
member
Joined: Mar 2006
Posts: 74
Stevensville, ON
|
I'm with Patrick. Heavy Duty Engine Oil (rated CI-4/SL) is the way to go for protecting flat tappet valve trains. The Corvair Oil article recommends this as well. It also suggests that phosphorus (the anti-wear component of ZDDP) levels higher than 1400 ppm lead to long term wear and engine deposits. Phosphorus levels over 2000 ppm lead to camshaft spalling. I would be very careful about adding more ZDDP to engine oil. It's better to use an oil that already has the right additives in it. HDEOs have better detergent additives than racing oils for street engines and can go longer between oil changes (or keep engines cleaner with short oil changes). Even the latest emissions HDEOs ( CJ-4/SM) still contain 1000-1200 ppm of phosphorus, which is more than the previous Starburst oils contained (ILSAC GF-3 - 1000 ppm max of P). So yes, 15W-40 Chevron Delo 400 (CI-4+/SL) has been reformulated into a 15W-40 Chevron Delo 400 LE (CJ-4/SM) but it still contains 1200 ppm of phosphorus. Incidentally, the latest API SM Starburst oils still contain 600-800 ppm of phosphorus (ZDDP) and a GM study found that (OEM-style?) flat tappet valve trains only require 500 ppm of phosphorus. Shell Rotella T CI-4Chevron Delo 400 LE 10W-30Heavy Duty Engine Oil List
|
|
|
|
|