The valve cover seals are the main culprit here, possibly leaking at the valve cover bolt heads. You'll have to poke around to find the exact source.

Which plugs? It it near the oil sending unit and maybe the oil is being blown from the filter adapter area?

If it was internal to the engine, the inside of the plug would be affected before the threads.

JMO,
Shoe.

both were int . just like 390 you have a y block flywheel i belive.

...the 330FT was internally balanced at both the damper and flywheel, and both the 361FT and the 391FT had damper bobweights of 27.1 oz-in, and flywheel bobweights of 27.1 oz-in.

12 inches on the clutch pattern sounds kinda truck-like to me. if it's not offset balanced, I'd suspect 352/360FE/390FE, or 330FT origins, otehrwise 361FT/391FT.

Sorry, no time to cross check the part number and 12" applications right now.

Shoe.

the 391 and 361 wer externley balanced

n/m

I'd deduced that all 1968 390GT engines got Thermactor emissions controls, in order to allow the large-overlap GT cam to pass the new emissions standards of 1968.

Here's yet another example of the 1968 390 GT engine which lacks Thermactor. I am doubting my deduction, and starting to think Thermactor was not required on the GT engine in 1968.

Hmmm.

Oh, pretty engine. Kinda spendy, but a lot of time and money seems to have been put into it.

Shoe.

Always wonder about guys so concerned with re-using original bolts and painting things factory shades etc...and then they blissfully go along and put in non-original pattern cams.
Is this truly 'as original' or not? Wonder if he reused the rod bolts? Head bolts?

> does any body know what happened to the other fe web site ?
heres some pics of my babys

http://www.network54.com/Hide/Forum/74182

You'll need to have a rather racy build to be able to use the flow capacity of the Victor, but those who have used it claim it's a great intake.

Lotsa cubes and lotsa valve overlap will work well with this intake.

Shoe.

If you want to do it for better mileage then you probably wouldn't want to bother since the increase would be very slight...maybe a half-mile more at best per gallon. Now, the better your fuel economy, the bigger the mileage increase meaning that if you were getting 28, you may get 30 or more.

A synthetic like Mobil1 does have smaller molecules so it could find an easier path past a seal. If you're engine has no oil leaks anywhere you may be okay. While there are tales of folks who started leaking where they had none before are theoretically possible, I've personally never known anyone who has had that experience. And if your oil control rings are in good shape now, you won't start burning oil by using a synthetic.

I use Mobil1 in my new cars. The mileage is better and the engines run a lot smoother.

http://jcoconsulting.com/ForumFE/reply.aspx?ID=82037&Reply=82037

you have a 390 that neads rebuilt the bearings are thin and when it warms up you lose oil pressure and lifters bleed off, the your engin gets noisey

The shafts on the Erson rockers are free to spin on the shaft supports. If the holes do not line up, which is common, you use a screwdriver to manually align these. Do not worry about whether the oil holes face up or down since on the Erson assembly it does not matter. If you use Edelbrock heads you will have to get a shim kit from Erson to relocate the rockers to align to some of the valve stems.

About 9.5 to 1,if I'm not mistaken.Perfect for pump gas.

I am actually doing a rebuild on the same engine but out of a 67 Fairlane GTA.

What else are you doing with yours? Maybe we can cross notes....?

Frank from Canada