|10-26-2012 01:39 AM|
|jayd_2||The intake gaskets were leaking oil on all cylinders, replaced the Felpro with some soft gaskets. Oil consumption problem solved and it runs much better.|
|10-18-2012 11:30 PM|
|Plaintoast||the head gaskets are standard, the intake gaskets from fel pro will had just a small bleed hole in the rear water jacket crossover, but a standard one will work. the valve covers are different and not interchangeable|
|10-18-2012 09:07 PM|
|10-18-2012 08:08 PM|
|10-18-2012 06:40 PM|
normally those are referred to as throttle body heads.
good chance they are either 191 or 193 castings, assuming 350 and not 305.
|10-18-2012 06:32 PM|
|jayd_2||The 2 center intake bolts are at a different angle than the outside bolts, what type heads are these?|
|10-18-2012 01:07 PM|
Also, a vacuum check before diving in, a leak into the manifold should show a low but steady needle on idle that corrects as the RPMs come up. A wiped lobe will show a normal needle that dips everytime that cylinder comes around and stays that way as the RPMs are moderately raised.
|10-18-2012 10:14 AM|
1989 SBC Using Oil
I've got a 1989 SBC that was a rebuild that had about 5000 miles on it when I got it. It runs great but uses oil and fouls the number 8 plug but does not smoke. The plug fouls after several hundred miles, all the other plugs are good. I just replaced the valve stem seals on number 8 but I doubt that was the problem. It uses half a quart in about 300 miles. The oil pressure is 30 lbs at idle and 60 lbs at rpm.
It doesn't smoke when cold or when under a load or when you let off at high rpm. How it could use so much oil without smoking? There are no oil leaks and the crank case pressure is good, pcv valve is dry.
Is it possible that the intake is leaking on one cylinder, it's got an aluminum intake and I've heard some gaskets are too hard and don't seal well on aluminum.