Bad engine?

I made some new pipes for my truck and after running it I noticed that some cylinders did not get as hot, could it just be plugs and wires or something worse?

 

Old engines allways have some hotter than others. Fuel distrtibution and ignition are usually the issue. Check the plugs. Cant really tell from here what the engine is like. Dig the Buick though!

 

That's a simple question to answer: Yes.

 

Thanks but I asked two questions, yes to which?

 

Its a 73 buick 455

 

Just a thought-
Did you make your header flanges? If so is the hole for each pipe fully open to the exhaust port possibly holding back heat?

 

I bet that is loud. Do you have water in it, if no, did it really run for very long? maybe it just hadn't evened out yet.

 

Looks like they get hotter the closer to the front they are..

 

Anyone else know?

 

Yes and yes and yes

Depends on how long it was running and how long it took to blue the pipes.
usually that's timing and or lean conditions.

Running it without water will eventually make stuff real bad. Little bit is ok and not a problem usually . Long enough to blue the pipes is too long without water on a propper tune.

Looks like the rear cylinder wasn't playing along.
Try a compression test before You go jumping to conclusions.

 

I found a "dead" cyl. in one of my sbc's..it turned out that where one of the pcv feeds off of my 3x2 intake starved the #1 cyl.
I disconnected it, and plugged the port..problem solved.

it could be a fitting below the carb base, or in one of the intake runners that is causing this, close to the affected cyl.

worked for me

I used a heat gun to pin point what cyl. was the one, and what temp it was running at..the plugging the port was like turning on a light switch to that cyl.

First thing you have to do is determine that this problem isnt because of an unhealthy engine issue..like bad rings, bad valve lash, bad valve..vac leak etc,,,,,,,,,

 

nice pipes makes it look like a spider

 

Looking at the right picture you've got a 7 cylinder engine..........at best.

Frank

 

8 cop callers? I hope you don't plan on driving far without aggro from the man.

In a single carbureted engine and manifold design fuel distribution will never be perfect. Some will be hotter than others. You can see where the exhaust velocities slow at the bends and heat the pipes. Looks good except the cylinder that shows very little discoloring.

All headers get mighty hot and need air flow to keep from burning up especially at full throttle. Ever see headers glowing red hot on a motorhome powering up a hill?

 

Nice truck.....Although I am kind of partial to those style of trucks......I would say fuel distribution is key....I had a similar issue myself during startup with my t-ram and 2 fours. As far as headers go, I say run em....I have zoomies on my truck with some motorcycle baffles.....Cops haven't even looked at me......But, yes it will be loud.