When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Can you post some wider views, perhaps of the engine compartment? The TVSs have been plugged in the water neck, and the dual-snorkel cold-air intake is missing. Perhaps your ECM has been bypassed, and your distributor and carb replaced or modified. At any rate, I'd check your timing. Retarded timing can also cause overheating, but it looks like @Jebbysan nailed it with asking about your air dam lip.
Ok......you need to get rid of this fuel pump you have in the photo.....and the rubber line. This is an accident waiting to happen. Need more pics further back of the engine...with the air cleaner removed. Why is this fuel pump there? Is the factory mechaical pump gone? FYI, that is absolutely the worst place to put an electric pump.
Fix the fan shroud too.....that broken top is doing you no favors.
Yes.....all of your bottom breather stuff is gone......this is huge for airflow on a C3 going down the highway.......Vette's bottom breathers and these air dams are critical for highway cooling.....they are worth 20+ degrees at 60 mph.......
Ok......you need to get rid of this fuel pump you have in the photo.....and the rubber line. This is an accident waiting to happen. Need more pics further back of the engine...with the air cleaner removed. Why is this fuel pump there? Is the factory mechaical pump gone? FYI, that is absolutely the worst place to put an electric pump.
Fix the fan shroud too.....that broken top is doing you no favors.
Yes.....all of your bottom breather stuff is gone......this is huge for airflow on a C3 going down the highway.......Vette's bottom breathers and these air dams are critical for highway cooling.....they are worth 20+ degrees at 60 mph.......
Jebby Yeah the mechanical one failed and the mechanic couldn't find a new one but had a $300 electric one that has not worked properly since the day it went in. Didn’t help he wired the neutral to the bonnet alarm so the moment I closed the bonnet it cut the power to the pump. I have been meaning to look at reverting it back to normal but the list keeps growing. If I can get the front parts Ill ad a pump and gasket to the order.
Originally Posted by Bikespace
Can you post some wider views, perhaps of the engine compartment? The TVSs have been plugged in the water neck, and the dual-snorkel cold-air intake is missing. Perhaps your ECM has been bypassed, and your distributor and carb replaced or modified. At any rate, I'd check your timing. Retarded timing can also cause overheating, but it looks like @Jebbysan nailed it with asking about your air dam lip.
I was having issues with fueling before it over heated and they took out the ECM and put a holley carb on and tuned it then they tuned it again when a lifter jambed and chewed out the cam. the dual snorkle now doesnt fit I still have it but not sure if I can get it to fit. Ill try and get more pics but might not be for another week.
Originally Posted by Bikespace
Thanks for the photos!
The water pump looks correct. It is the correct "depth", right up against the timing cover, so I don't think that is the problem. The fan blades are pitched correctly of course.
You are missing not just the rubber "lip" on the lower extension, but the extension itself. I think that's called the "Center Valence Panel", or perhaps "Lower Bumper Extension". The rubber parts are the "Front Lower Spoiler Air Dam Extensions". Links below, with a photo of what it looks like in my 80 (mine was replaced by a PO, and says Ecklers on it somewhere, so shearing them off appears to be a common problem).
Ill see if I can confirm that its 100% not the head then look at trying to order those parts. I think they will be needed no matter what its just the $650 shipping fee that isn't great.
I don't know what else we can do to advise now. Perhaps you can find a way to ship things cheaper, especially if you bundle them together from one place. $650- shipping for a $200- panel is crazy. But now is the time to pick up a fuel pump, and whatever else.
Hopefully it is not the head. You have a Holley carb. Do you also now have a 4-pin HEI distributor with a vacuum advance can? That will be a lot easier to tune using Lars' instructions, vs. the 81's stock distributor.
