Intake Manifold Installation 305 SBC

[Tynan918]

Ok, I got my hands on a damn near new Edelbrock Performer EPS for cheap...

 

[SSMonteMan]

What I applied

If that's RTV that you applied, to seal the china walls, you're going to want to scrape that off and try again. For two reasons; 1: that's not near enough, you need to apply about a quarter inch thick bead of RTV to make the seal. And 2, you want to do this about 5-10 minutes before installing the intake, otherwise it won't adhere to the intake, too, and will leak.

 

[Tynan918]

If that's RTV that you applied, to seal the china walls, you're going to want to scrape that off and try again. For two reasons; 1: that's not near enough, you need to apply about a quarter inch thick bead of RTV to make the seal. And 2, you want to do this about 5-10 minutes before installing the intake, otherwise it won't adhere to the intake, too, and will leak.

Oh no, I already scraped off the china walls gasket and RTV ...the front had the rubber gasket from an intake manifold set, and the back RTV was used to make a gasket.

I thought he was referring to the valley RTV I applied on the middle and outter coolant ports on each side of the valley...

But great info on how to use the RTV on the china walls, I needed that.

 

[Tynan918]

Ok...new valve cover gasket...decisions, decisions...

I see the blue rubber FelPro 1628 sets but they are $60 in store and online...out of my budget right now...

I got about $25 to work with...

I don't think I've had any leaking coming from the valve covers, but definitely seen "sweating"...

Cork or rubber ? Normal, thick, extra thick ?

Do I use RTV on the gaskets when installing the valve covers ?

 

[SSMonteMan]

I use felpro part number 90314-2, about $20, last I checked.

Here's a decent video of a guy doing the install:

That's almost exactly how I do it, myself. Notice how he also runs the bead up the head just a bit. This helps seal the china wall at the corners. Also, the RTV around the coolant ports helps a lot to hold the gasket in place as you set the intake on, so I highly recommend that.

I use rubber gaskets for my valve covers, a light layer of RTV between the cover and gasket holds them in place, none needed on the head side, usually. If you use cork, I would RTV both sides and check torque on them after a week or two, as the cork will compress and might allow the hardware to back out.

 

[Tynan918]

I use felpro part number 90314-2, about $20, last I checked.

Here's a decent video of a guy doing the install:

That's almost exactly how I do it, myself. Notice how he also runs the bead up the head just a bit. This helps seal the china wall at the corners. Also, the RTV around the coolant ports helps a lot to hold the gasket in place as you set the intake on, so I highly recommend that.

I use rubber gaskets for my valve covers, a light layer of RTV between the cover and gasket holds them in place, none needed on the head side, usually. If you use cork, I would RTV both sides and check torque on them after a week or two, as the cork will compress and might allow the hardware to back out.

Hell yea, I'm subscribed to his channel, lot of 305 content 👍🏾

Felpro 90314-2...got it

 

[Tynan918]

I use felpro part number 90314-2, about $20, last I checked.

Here's a decent video of a guy doing the install:

That's almost exactly how I do it, myself. Notice how he also runs the bead up the head just a bit. This helps seal the china wall at the corners. Also, the RTV around the coolant ports helps a lot to hold the gasket in place as you set the intake on, so I highly recommend that.

I use rubber gaskets for my valve covers, a light layer of RTV between the cover and gasket holds them in place, none needed on the head side, usually. If you use cork, I would RTV both sides and check torque on them after a week or two, as the cork will compress and might allow the hardware to back out.

Ok I did it exactly how the video described...intake installed and torque down...❤

 

[Tynan918]

Ok, thermostat housing and distrubutor gasket...do they need RTV on them, and if so, where ?

 

[bruisedbanana79]

What RTV did you use for the china walls?

 

[bruisedbanana79]

As for the thermostat, rtv is not needed but you could do a light skim coat on both surfaces

 

[Tynan918]

What RTV did you use for the china walls?

Grey (as mentioned in the video) and Ultra Black...