Oil for forged na 347?

Reply Subscribe

Thread Tools

Search this Thread

May 7, 2010 | 11:47 AM

MM98

Thread Starter

TECH Fanatic

iTrader: (13)

Joined: Dec 2003

Posts: 1,455

Likes: 2

From: Okc,OK

Oil for forged na 347?

Just trying to get a straight answer here.. I've been using good ole' M1 10w-30, but my car seems to be using almost 2 quarts between oil changes.. I've been reading and it seems forged engines are more prone to oil consumption due to being heavier and having a slower piston expansion.. So what would help remedy this in terms of oil for these motors? Thanks!

Mike

May 7, 2010 | 01:23 PM

stumprrp

TECH Fanatic

iTrader: (2)

Joined: Aug 2007

Posts: 1,474

Likes: 0

From: Rhode Island

this may not apply because i have an LT1 but this motor is all forged and uses 20w50 valvoline VR1 racing oil, ive been beating the hell out of it with many 7000 RPM burnouts and my oil is still clean and full after 1000 miles.

May 7, 2010 | 02:47 PM

PowerShift408

TECH Fanatic

iTrader: (44)

Joined: Jan 2006

Posts: 1,741

Likes: 1

From: Bowling Green, KY

I recommend German Castrol synthetic 0w-30. It is all I run in any of my cars.

May 7, 2010 | 04:05 PM

Azrael

10 Second Club

iTrader: (10)

Joined: Feb 2004

Posts: 1,212

Likes: 0

From: Manteca, CA

Quote:

Originally Posted by stumprrp

We are running the same in our LSX 454: Valvoline VR1 Racing Oil 20w50. So far so good.

May 7, 2010 | 04:16 PM

MM98

Thread Starter

TECH Fanatic

iTrader: (13)

Joined: Dec 2003

Posts: 1,455

Likes: 2

From: Okc,OK

How is the VR1 20w50 in cold weather? I dd my car so I'm looking for something that works good year round.

May 7, 2010 | 04:19 PM

garygnu

TECH Senior Member

Joined: Feb 2009

Posts: 5,445

Likes: 4

you should check into upgrading your pcv system.with more power comes more internal pressure.look inside your intake ,do you see oil residue on the the floor of the intake?

May 7, 2010 | 04:29 PM

MM98

Thread Starter

TECH Fanatic

iTrader: (13)

Joined: Dec 2003

Posts: 1,455

Likes: 2

From: Okc,OK

Quote:

Originally Posted by garygnu

you should check into upgrading your pcv system.with more power comes more internal pressure.look inside your intake ,do you see oil residue on the the floor of the intake?

I'm running the LS6 valley cover with the oil separator/valve built in along with a Rev xtreme can.. Haven't looked in the intake yet.

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Pouria Savadkouei

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Verdad Gallardo

7 Most Reliable High-Performance Engines GM Has Ever Built

Verdad Gallardo

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

May 24, 2011 | 04:46 PM

ZexGX

12 Second Club

iTrader: (28)

Joined: May 2007

Posts: 2,793

Likes: 16

From: under a JEGS hat

Bump for new info. I have a forged 347 in my car as well with under 500 miles on the new build. Just looking for some oil recommendations. I noticed little to no oil smoke on the very first startup, and none after that incl. during the ring seating process. I am guessing the PTW clearance and ring gaps were set fairly tight. I have also installed modified Lowes "catch cans" between the passenger valve cover and throttle body, and the LS6 PCV system and intake manifold.

Last edited by ZexGX; May 24, 2011 at 05:17 PM.