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  1. 79K15 HIghSierra

    Right fuel tank?

    Good to know! I had no idea, that’s why I posted here before I ordered thank you!
  2. 79K15 HIghSierra

    Right fuel tank?

    Hey there, my 1979 k15 high Sierra is in need of a new fuel tank! Just wanted to ask some wiser minds here before I pull the trigger. Found a tank and sending unit on rockauto, seem really reasonable on price, can’t think of any reason they wouldn’t fit, but never purchased either before and...
  3. 79K15 HIghSierra

    Break in procedure

    did get it on the road, was running it off a gas can (tank is nasty) and hood isn’t on yet. I’m itching to drive it though! Only drove it once and that was limping it on the trailer when I bought it.
  4. 79K15 HIghSierra

    Break in procedure

    Well fellas I did it! With the help of my old man we just got her broke in! Struggled to start, it was really cold here today, but we got it going and it ran like a top. Headers had been glowing so we advanced the timing and fattened up the fuel mix. All y’all’s advice and input here was...
  5. 79K15 HIghSierra

    Break in procedure

    Yes, we have a light hooked up, I guess it’s just a matter of adjusting that AND fuel mix. So fatten it up a bit on the mix and slo the timing down. Gonna give it it another shot tomorrow!
  6. 79K15 HIghSierra

    Break in procedure

    so tried breaking mine in this evening, first had to shut it down because it overheated, believe there was an air pocket, removed tstat and got it running again, but headers were glowing red hot and blue flames out the back (I don’t have it running through mufflers yet I don’t have them) so I...
  7. 79K15 HIghSierra

    Comprehensive intake and new engine hookups

    Wonderful, such good info, many many thanks!
  8. 79K15 HIghSierra

    Comprehensive intake and new engine hookups

    Sorry, for clarification, it’s an edelbrock with manual choke. Older one, rebuilt. Not the original one, but a very basic 4 barrel. I had a Rochester quadrajet but it was no good. Also a new intake, edelbrock, the basic $149 one for sbc.
  9. 79K15 HIghSierra

    Comprehensive intake and new engine hookups

    Been looking around for some info and all y’all fine folks have been so dang helpful in my quest to revive my 79 k15, I don’t feel as bad being such a noob and asking “dumb” question, as much as I’ve been told there is no such thing! So, freshly rebuilt engine has been bolted in place, intake is...
  10. 79K15 HIghSierra

    What have you done to your square lately??

    Dropped my new motor into the ole ‘79 k15! You guys on here helped a ton with all the noob questions I had.
  11. 79K15 HIghSierra

    Oil filter adapter?

    thank you! Went ahead and got it, installing today. So if I had an oil cooler it would need additional stuff? Good to know
  12. 79K15 HIghSierra

    Oil filter adapter?

    Running into a slight problem, ordering this oil filter adapter/mount and it’s saying it’s not for 4x4, but I can’t find one specifically for a 4x4. I’ll admit that I cant remember how it was when I took it out, I had removed the filter only and then pulled motor and sent it off, it came back...
  13. 79K15 HIghSierra

    Break in procedure

    Flat tappet sorry I should have said so!
  14. 79K15 HIghSierra

    Break in procedure

    Finishing putting together my newly rebuild 350 for my ‘79 K15. Hopefully installing it this weekend. Noob question but it’s better to ask than to not! Proper break in process? I’m talking from first start. I know to prime the oil pump etc, but as far as breaking in the cam etc, what’s the...
  15. 79K15 HIghSierra

    Howdy from Alaska

    Welcome from South Carolina!
  16. 79K15 HIghSierra

    Lifting engine in place with carb studs?

    Alright good to know! Thanks guys, my coworker got this made in a couple minutes. Thank you!
  17. 79K15 HIghSierra

    Lifting engine in place with carb studs?

    Sounds fishy I know. Getting ready to drop my newly rebuild 350 into my truck, want to put the intake on before hand. Old man says “take a plate of steel and weld a couple hooks to it, bolt it where your carb goes and use the hoist to attach there!” He claims this will also keep stuff out of the...
  18. 79K15 HIghSierra

    Help putting my engine back together

    Yes timing chain, cam and freeze plugs are in! Dude thank you this is such a concise little explanation many many thanks!
  19. 79K15 HIghSierra

    Help putting my engine back together

    Hey all, just got my rebuilt 350 back, and am going to start putting it all back together. First project of this type, excited to get into it! I’ve done a good bit of research and feel confident to reattach all the components (it is currently only the block with heads on it, lacking intake, oil...
  20. 79K15 HIghSierra

    Hello From New Member

    Welcome from upstate SC!
  21. 79K15 HIghSierra

    Hello All

    Welcome! Good luck, cool truck
  22. 79K15 HIghSierra

    Cab swap?

    All this is such great info thank you guys!
  23. 79K15 HIghSierra

    Cab swap?

    Wanting to get a new cab for my 79 k15, mines a bit rusty. Problem is, all I can find used around me are 81-87 cabs. Would that have significant issues with swapping? Thanks! also mine is 4 speed floor shifter so I’m planning on having to make that mod unless I can find a manual trans cab.
  24. 79K15 HIghSierra

    Block hugger headers for 455 Olds in GMC truck...??

    I tried fitting side huggers from summit on the 350 in my ‘79 k15 and they didn’t work, hitting on the drivers side and rubbing on passenger.
  25. 79K15 HIghSierra

    First square body!

    Picked up a ‘79 GMC k15 High Sierra, one owner farm truck with a sm465 3 speed with a granny gear. Needs some love, original 350 is being rebuilt and should be here Monday. Always wanted one and found my dream truck.
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