intake oil splash shield

[Geary Trussell]

What would be the result if the w block intake manifold oil splash shield was left off?

 

[Don Jacks]

You wouldn't like it at all,Geary! Besides keeping the oil away from the hot crossover,it provides a baffle to keep oil out of the road draft tube/pcv system.

 

[63 dream'n]

so what about all of the Edelbrock intake manifolds is everyone retrofitting a 881 intake manifold oil Splash Shield to the bottom.........

 

[Don Jacks]

Maybe on the earlist manifolds,but the newer ones have gone to a different type of baffle that solves the problems that the earlier ones had.

 

[63 dream'n]

Maybe on the earlist manifolds,but the newer ones have gone to a different type of baffle that solves the problems that the earlier ones had.

And may i ask as to the difference.........

 

[63 dream'n]

are you referring to pcv at the rear of the manifold with a little splash Shield and then they retrofit some hose that runs to your air filter base..........

 

[Skip FIx]

Edlebrock had a mini shield initially to cover for a PCV on their intakes. Sucked too much oil so not they send a set up to us it as the fresh air inlet(which you need with a PCV) and put the PCV somewhere different. I added an 881 shield but have not used a PCV on it yet.

 

[Geary Trussell]

Thanks for the replies. Would leaving the stock shield off cause a small amount of smoke out of the exhaust pipes?

 

[Don Jacks]

Maybe Geary,but we need to know a little more about your build,like head type,which manifold are you using,pcv set up,compression.

 

[Skip FIx]

Here is the bottom of the Eddy intake(dual quad) with the oil shield installed. Bolts were safety wired before install

 

[Skip FIx]

One more of the whole deal

 

[Greg Reimer]

The Edelbrock item looks nice .On the OEM 881 intake,the coil bracket has two threaded bosses in the intake that go through the manifold into the lifter valley. If you leave off the baffle on the bottom of the intake, and mount your coil on the firewall, you need to put 5/16"NC bolts in the coil bracket mounting holes in order to prevent an oil leak that's hard to find. I went through that on the first 409 I put together for myself. This leak only appeared after the engine got run moderate hard. Oil from the camshaft got slung up on the bottom of the intake and exited that bolt hole where it got on the firewall and the back of the engine and would show up on the ground under the car when it was parked. What caused me to find it was when I had the intake off and replaced it with one that still had the valley baffle in place.Unbenounced to me, that was what fixed it.

 

[models916]

Could run without the shield if you block the exhaust crossover and open the heat riser flap. Oil control is easier if you put the breather/s in the valve covers and use some sort of baffle.

 

[63 dream'n]

One more of the whole dealView attachment 50456

Is that splash shield a edelbrock item.....?

 

[Skip FIx]

Nope a Showcars factory shield. But an Edlelbrock intake.

 

[bschulze]

They are available so why not use one? The stock 348 4 barrel shield fits the Tri-Power so there should be a bunch out there. They are easy to take off and replace. (After market manifolds, probably a different story)
I'm not sure that the 409 uses the same shield but others can say.

 

[jwhotrod]

check out www.mewagner.com for a ton of info on adjustable PCV valves and baffle design. It seems that PCV valving and baffles are not as simple as I thought. Hope this helps.

Big Jim

 

[Don Jacks]

Thanks for that information,Jim.

 

[poison ivy]

on every build we remove the splash shield, clean by boiling or clean as necessary, to remove crud, replace and secure.Another thing install screen above cam, to keep anything off cam, should it fall into that area; i.e. push-rod, etc. a step in time will save a 409.

 

[Darren Blake]

Funny how I just removed the factory splash shield on a factory 409 Winters Dual Quad intake to have it powder coated. Just ordered 3/16" drive rivets to reinstall once it gets back from powder coating.