68 Chevy C10
Thanks for the comments gents. Its actually broke down right now (thanks to my hot rodding the **** out of it)
Its running really rough, not wanting to stay running, but no code is showing on the obd2 reader. My buddy who installed it is checking it out, but im not in too big of a hurry with it being winter.
Also soaked the alternator since I'm running the Fbody accessory brackets, and never installed a "splash guard" so to speak. So once we get it back running like a raped ape again, im going to put something under the truck to help keep water from getting to the alternator.
1. I think the starter is fried as when the motor is warm, the starter doesn't work until it cools down.
2. Truck is starting to overheat when sitting in traffic
3. Condensation build up on the oil cap, but no water in the pan
4. Running very rich
5. heat isn't working
6. water pump is leaking from the seep hole
I first plan on swapping the water pump with a brand new AC Delco one.
Started getting things ready for when the new pump arrives. I got everything removed and the bolts to the WP loose, just waiting on the new one. I went back with AC Delco brand rather than buying reman or aftermarket.

This has me worried... I'm not sure what this is, but it's on the intake where the throttle body meets the intake.

I am also going to start a thread in the noob section asking what this is, but i wanted to ask you guys here too.
I circled this line that is attached to the throttle body. It is capped on one end, then leads into the intake.

Then there is this line that comes from under the fuel rail covers that attaches to the throttle body as well.

under this is where the milkyness is.
The coolant line for the TB is capped at the throttle body. It still runs from the TB to the crossover line between the two heads. I have never had a problem with this line, i just want to make sure its not going to in the future.
Any ideas why the PCV line has milkiness?
The Best V8 Stories One Small Block at Time
https://ls1tech.com/forums/new-ls1-o...milkiness.html
I have replaced the Tstat twice, flushed both oil and cooling systems, added an overflow tank, and now doing the water pump
Oh ok. Mine didn't have a cable at all on it. I've seen some local guys parting out their Fbodies, I'll have to see what they want for that. Mine is ran under the cross over tube and sticks a little. Nothing major, but annoying.


This is my first time inside this engine, or any LS series engine for that matter. Would you guys consider this good?
There was an EXTREMELY minimal amount of milkiness i found in the oil. I checked the dipstick and in all the crevices above. I also picked up the Napa Hydrocarbon tester as well. Once i get time to get it back together, I'll do the test on it. The new AC Delco pump and factory temp thermostat installed. All i am waiting for is the in-house adapter i ended up buying instead of making. Found a really good looking aluminium one and decided to go that route. Should be here this week.
Last edited by Josh40601; May 14, 2012 at 06:56 AM.
Here is what happened...
1.) ran a hydrocarbon test and there was no change of color and very very little bubbles. Honestly think the head gaskets/heads are fine.
2.) the temp gauge is acting crazy. It goes straight to max as soon power is "on"
3.) fans are not kicking on at all
4.) the check engine light is on
5.) the truck runs fine now, but scared to take it out due to the cooling
Before...

After... Kinda


The wheels don't fit. The back needs to be moved out about an inch and a half, and the front won't clear the hubs, so now I'm looking at spacers.dum
Also found out why the front was squeaking... The pads and rotors are damn near toast.dum
Sold my 68 GMC, been sick about it ever since.
Mine had a 468BBC w/B&M blower, 4 link, 700R, A/C, etc,etc..
Had I kept it was gonna do LS1 swap (6 mpg sucked)
Great looking rides. Keep up the good work







