Oil additive
Drifting
Joined: Aug 2005
Posts: 1,443
Likes: 65
From: Wauconda IL
Consider yourself lucky.
FWIW, I didn't think I was having engine problems until 4 years ago when I took the heads off for inspection from my 1969 oem 350/300 (w/3.08 gears) with under 90K miles. I bought it with 40K miles so I don't know how the care was before that but, I did 3-4 month changes when using it as a daily driver in the 70's with name brand zinc fortified oil available back then.
FWIW, I didn't think I was having engine problems until 4 years ago when I took the heads off for inspection from my 1969 oem 350/300 (w/3.08 gears) with under 90K miles. I bought it with 40K miles so I don't know how the care was before that but, I did 3-4 month changes when using it as a daily driver in the 70's with name brand zinc fortified oil available back then.
What did the cam look like?
I'd also be curious what the bearings looked like..
Yikes!
Melting Slicks
Joined: Aug 2005
Posts: 2,683
Likes: 34
From: Working on the car NY
) and put the oem engine on a skid.
Again, FWIW, car ran great before teardown. I was more concerned with cylinder wear/scoring which seemed virtuially non-existent.
Last edited by TWINRAY; Jul 10, 2012 at 11:17 AM.
Le Mans Master
Joined: Aug 2010
Posts: 9,272
Likes: 17
zinc additive by my corvette guy...
Race Director
Joined: Mar 2006
Posts: 14,112
Likes: 28
From: Florida
Most people don't realize this, but chevy cams had a history of going bad in the 70s. Well know problem. Just lousy metal, nothing to do with oil.
