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  1. S

    Cali Smog Engine Rebuild

    The block the has 049 head. They are oval ports. I plan on putting new valves and springs. The block still has the smog pump and charcoal canister still on and working. Yes it’s 1ton with no Cats with a dual exhaust with a cross over.
  2. S

    Cali Smog Engine Rebuild

    I was wonder if anyone has bored and stroked a 454 and had it passed the California Smog Sniff Test. I have to rebuild my engine out of my 1980 C3500. We believe it’s a cracked head casket. Since we are pulling the engine and taking the heads off I might as well do the bottom end since I am...
  3. S

    Right fuel tank fills left tank

    The problem was pinched fuel line at the sending unit. When I put in new units I didn’t remove the bed. Well I left the fuel lines too long.
  4. S

    Right fuel tank fills left tank

    I have a 1980 c3500 with dual tanks I just put in new fuel sending units and hoses. Now with the motor running fuel from the right tank it goes to the left tank. The hoses are hook up probably. What would cause this problem. How do I fix it?
  5. S

    Fuel tank selector valve 6 port

    What 6 port fuel tank selector valve did you? The new plastic style with working harness or did you find a Nos single wire selector. I’m in the process of new sending units and hoses and it’s hard to find the single wire fuel tank selector. . Does the new plastic style wire up old wiring...
  6. S

    Where do you buy your parts

    So I need a few parts. I looked at Brother’s, classic industries, LMC, rock auto, local parts shores and amazon and prices very a lot. What would be/cause the prices difference. For fuel sending unit prices range from 49.99$ to 99.99$ same parts and picture different seller.
  7. S

    Fuel Selector Fuse

    I have a 1980 Gmc C3500. After a weekend of jump starting, and some trail and error I put in a new battery. In doing so my fuel gauge now reads past Full in the 3 o’clock position. The fuel selector switch does not change the position of the needle on either side tank. Could I have blown the...
  8. S

    1980 Cruise Control

    Thanks a lot!!! I’m working on an issue we’re my battery draws overnight right now but I will keep you in mind. Next small project.
  9. S

    1980 Cruise Control

    The Speedo works but from 0-30 it bounces around but then at 30 on it good and solid.
  10. S

    1980 Cruise Control

    So I am missing a cable but I don’t know where it goes. Where does the top cable go? The bottom cable goes to the rear of the transmission.
  11. S

    Intake numbers

    What intake Gasket would I put on. Again early style intake 66-68 but the heads are 70-73. The heads are 049 large oval port. Going to pull the intake manifold this weekend since I am there
  12. S

    Intake numbers

    I don't offical know. The truck vin number says it had 454 at one time. The prior owner said it was a 454 and did not engine work. So I am cleaning things up and so on. The block is oily and greasy so it has been in there a while.
  13. S

    Intake numbers

    Ya it's very interesting... it smog legal for California which is odd why someone would put a smaller block in and put all the smog stuff back on.
  14. S

    Intake numbers

    I have no clue on the piston size I'm not pulling a head to find out. The truck is running just doing some tune up work so it keeps running. Ya the carbon build up is very nice.... don't understand that either
  15. S

    Intake numbers

    I don't think it's ??? I didn't pull it off
  16. S

    Intake numbers

    While doing some maintenance I ran the number on the Intake I have 3883948 GM 1. When I looked it, that number comes back to a 396ci. That puts in 66-68 year. I pulled the valve cover and I have 353049 heads the heads are from 70-73. I get that it is not the original block. Does anyone...
  17. S

    Advance Curve kit

    What you mean? What performance did you see after putting it in?
  18. S

    Advance Curve kit

    Anyone use an adjustable vacuum control and a advance Curve kit on there distributor The place where my carb is getting rebuilt recommended doing both.
  19. S

    1980 Air Injection Tube

    So I was able to keep the OEM headers and all the rusty smog equipment on the engine. I fixed the Exhaust leaks that I had. Driver side header was loose. Thanks to an eroded Exhaust gasket. The motor sounds great now. I'm dealing with an electrical issues now. New alternator, took the spare...
  20. S

    1980 Air Injection Tube

    Has any one replaced their Air Injection Tube on their headers? Rock auto has the left side. I'm looking for the part number for the passenger side Air Injection Tube. Engine is 454. I'll take a set if need be. It's California truck so I thinks it's part of the smog equipment. it's rusted on...
  21. S

    Stock 1980 Camper Special Door Inside Panels

    I'm look for a picture of a what a Stock 1980 GMC Camper Special C3500 inside door panel would look like. I have 4 sets of door panels plus what's on the doors right now. So 8 total. The rear door panels have a cool trim piece but the front does not. Just want to make sure whats right.
  22. S

    New and Drove this Home

    Hey thanks for the add and the sign up. I found this truck in Redding CA and drove it all way back to SoCal!! 1980 GMC C3500 Camper Special 3+3 BBC TH400. The Brown Trout I need to fix the A/C possible recharge or convert to R134 and fix the exhaust leak on the headers. P.O. Said the headers...

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