intake manifold

[hunterguy86]

Can I swap a non egr manifold to my 86 k5 305 engine? What would be involved in doing this as my truck has all that emissions stuff and vaccume hoses everywhere. is it possible or should i just get an egr manifold?

 

[onlychevy6]

if you are keeping it smog? If so then get an egr maninifold

 

[trailblazr81]

If yer not gonna have to smog it you can put a Non EGR manifold on a engine with EGR heads. Ive done it a couple times. No probs. If you are dealing with smog get the EGR manifold and good luck with the spaghetti of vacuum lines and wires. Im glad I got rid of my 86 K5. My 81 was alot more managable. And I luv my 73!!

 

[hunterguy86]

no smog to worry about here. So how would I go about figurin out the vacume lines? any place to research what everything does so i can decide what i can and cant do away with? I'd like to simplify things a bit under the hood if possible.

 

[trailblazr81]

Get a manual. Chilton has the diagrams in it. Maybe somewhere online has the diagram. Or just yank 'em all and send vacuum to brakes, distributor, and that should be all.

 

[hunterguy86]

how about the vacume canister? doesnt it vent the gas tank?

 

[Muddytazz]

If your talking about the coffee can shaped thing on the core support, no idea what it vented, but on my 1975 burb (non-egr) I took that thing off and just put a filter on the end of the hose like you'd find on the end of the diff tube.

 

[1979jimmy350]

that canister collects the gas fumes from the fuel tank and then allows the engine to burn them

 

[blackblazer717]

their is no reason you cant, just check with your smog regulations unless its a trail only rig.
it will work fine!

LUKE

 

[onlychevy6]

what carb are you running? I have the factory Quadrajet. All that is hooked up on my 75 is brake booster and dist. and Transmission. My trans and brake booster are on one port off the manifold. (Don't like that) Not sure where the vacuum port would be for the brake booster coming off the carb. And i don't have the canister installed at all. All my misc ports are capped off.

 

[hunterguy86]

im runnin the stock qjet. I think i wanna stick w/ it. It works well for me.