Mak

So, I'm wondering if I should torque my Edelbrock intake manifold to the factory torque specs? Or, being an aluminum manifold, does it require a different spec?
Any help is appreciated.

442rocketdave

I have been putting aluminum intakes on from different manufacturer for 40 years and I go 30 lbs in the sequence of 15lbs first then 30lbs, just a tip dont use the end gaskets just use RTV and the Gray is the best. Gasaginch is Edelbrocks sealer and works really good also dont use the Felpro blue gaskets they are hard and seem to leak alot. let the RTV skim over before putting the manifold on and after you have the manifold torqued to 30lbs and you put every thing back together fire it up check for leaks if none drive it a little then after it sits overnight the next morning retorque the manifold to 30lbs in sequence. You should have no problems!

Mak

Awesome advise, thanks! I was planning on using RTV on the ends, like you said, and around the water jackets... and then some spray permatex on the rest of the valley gasket (turkey tray). I will torque the bolts as you suggested.

I was also going to use a dap of anti-seize on all the bolts (instead of dipping in motor oil)

Don't know if you saw my other post, but I was unable to remove one of the exhaust crossover plugs from the head, so I've decided to just leave it. (I removed the one that was rattling.) I considered drilling a hole through the plug that's stuck... but since my exhaust manifold doesn't have the flapper valve anymore, I figure it really doesn't matter anyway.

Any opinions?

442rocketdave

I always blocked them off and the metal plugs are Ok but you have to grind them to fit and I used metal epoxy to seal them in to keep them from rattling. Also on the turkey tray I always use either Mr Gasket intake gaskets or Edelbrocks or Mondello's with the print o seal. Just using the turkey tray with the Aluminum Intake seems to leak to much, I would spray High tack sealer from permatex on the head and turkey tray then the RTV on the water jackets then place the turkey tray in and snap it in with it being completely flat then I would coat both sides of the intake gaskets then place them on the heads then put the intake on. If the turkey tray for some reason leaks I would cut the gasket material away leaving only the tangs to fit in the heads and that way it holds the turkey tray in place and I would use only the Edelbrock or Mr Gasket intake seals. It takes a sharp pair of tin shears and some time but I would reuse the turkey tray indefintley. No matter what you need the turkey tray to prevent hot oil on the underside of you manifold, I have seen people discard it but performance is affected by the hot oil.

joe_padavano

The factory used the same torque specs for iron and aluminum intakes. I've been doing the same (and used the turkey tray gasket) for four decades with no leaks or problems ever.

ziff396

Edelbrock say's 15 then 25lbs. However I don't see a problem at all with 30.

Mak

I resealed my intake manifold today. It seems I went a little overboard on the RTV, as quite a bit oozed out... but hopefully it will seal well. I have to leave it alone now for 3 days before I can finish up and add coolant, so I figure maybe I'll trim a little excess ooze with a razor blade. Other than that, it went pretty well.

Thanks to all that gave me advise. I'm definitely not a mechanic... so it really helped get me through the project. This forum is really great!

(And, yes, I know I painted my water pump the wrong color! )

Olds64

That looks like a clean install. Good job!

rjohnson442

After driving around for a few days and getting some heat cycles on it recheck the torque.

442rocketdave

A trick I use to paint my engine in tight spots was to use a nozzle from a carb cleaner or brake cleaner with the tube to get in tight areas and touch up. I have painted my engines all kinds of colors over the years. I like Olds red!! The manifold job looks good!!!

Olds64

That is a cool trick Dave. Of course, I painted my engine with POR 15 which is brush on so that wouldn't work for me.

Mak

Will do... thanks for the tip.

Mak

Great tip, I may give that a try... although for now, I just want to get it back together & drive it!