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  1. supspt454

    Smeding Performance 383 in a 97 C1500

    I finished the engine with Edelbrock ETec 170 heads, Summit Pro SBC Billet Stage 2 cam 8801, Comp Cams Magnum 1.6 roller tip rockers, Cloys single roller timing set, Holley aluminum chain cover with the crank hole which seems to be a lot better than the stock plastic, new GM balancer, all the...
  2. supspt454

    Smeding Performance 383 in a 97 C1500

    Hi, sorry for the delay. So far so good on the short block. From everything I inspected before final assembly and install, it was top notch. It is a brand new after market block that is much beefier than the stock GM block. It is extremely smooth cruising down the road. Lots of power. I am...
  3. supspt454

    What to do with pre cat and after cat 02 sensors

    I defiantly have a lot to learn lol. Oklahoma does not have inspections, I say I won't be running cats, but I am still thinking if I should put high flow cats on or not. Most likely not, depends on if this muffler will be too loud.
  4. supspt454

    What to do with pre cat and after cat 02 sensors

    Excellent. Just what I wanted to hear. Thanks a lot for the info. I kind of figured this, but being new to EFI tuning, just wanted to be sure I was thinking correct.
  5. supspt454

    What to do with pre cat and after cat 02 sensors

    I have HP Tuners and plan to learn how to do this myself. The truck will not have any cats. So I guess my question should be can the bank 1 sensor 2 (combined pre cat) be deleted along with bank 1 sensor 3 (post cat).
  6. supspt454

    What to do with pre cat and after cat 02 sensors

    So I need all 3 pre cat sensors? If so, where do I put B1S2 if it had 1 factory cat? Just in one of the pipes of the duals, which would mean that pass bank would have two sensors and driver bank would only have one.
  7. supspt454

    What to do with pre cat and after cat 02 sensors

    From what I have found, bank 1 sensor 2 and bank 1 sensor 3 are what I am asking about for the y pipe into single cat exhaust that the 5.0L had from factory.
  8. supspt454

    What to do with pre cat and after cat 02 sensors

    97 GMC Sierra factory 5.0L exhaust uses a small down pipes with O2 sensors in each bank, then into a Y pipe with a pre cat O2 and after cat O2 for a total of 4 sensors. Truck has a 383 with mid length headers, 3" to 2.5" header collectors with O2 bungs for each bank. Head pipes will be 2.5"...
  9. supspt454

    Edelbrock ETec Head Spark Plug Question

    What in the world. Geez where did you find that. I must have been overlooking or something. Nice find.
  10. supspt454

    Edelbrock ETec Head Spark Plug Question

    Hi. Yes, I have found lots of info on heat range charts from just about everyone except for AC Delco. NGK for example, the higher the number the colder the plug. They have a chart where you can actually see where the heat range number lands. However, I have heard that the lower the number...
  11. supspt454

    Edelbrock ETec Head Spark Plug Question

    R44LTS6 was the factory installed AC Delco plug. I have seen heat ranges listed as 3 and 4 for that plug with a .060 gap. NGK did say the TSB GM put out in like 2003 applied to 96-03 to change gap to .040. With that said, I have been looking all day for a heat range chart for AC Delco plugs...
  12. supspt454

    Edelbrock ETec Head Spark Plug Question

    Correct. It uses a 14mm, 3/4" (19.0mm) reach, 5/8" (16.0mm) washer spark plug.
  13. supspt454

    Edelbrock ETec Head Spark Plug Question

    Quick question about what spark plugs to run with Edelbrock Etec 170 heads on a Vortec 383 OEM ignition system. The heads call for a 14mm 3/4" reach 5/8" hex washer plug. I know the factory plug specs on the Vortec are a .060 gap with a heat range of 5, so I have been trying to find a...
  14. supspt454

    Smeding Performance 383 in a 97 C1500

    Truck is finally back on the road. Black box does not like it so much. It runs and drives okay, but the 0411 will be getting installed soon. And I just ordered MPVI3. Will defiantly be asking for help with that.
  15. supspt454

    Push rods

    BTR hardened chrome pushrods, comp cams steel roller tip rockers (non self aligning) guide plates.
  16. supspt454

    Push rods

    Wear pattern with 7.200 push rods and 1.6 ratio rockers.
  17. supspt454

    Push rods

  18. supspt454

    Push rods

    I took a small shoulder nut and placed upside down in the lifter removed the spring and reassembled. Perfectly locked out the lifter to check for PRL.
  19. supspt454

    Push rods

    Hi. Yeah, I have all that stuff. I was just trying to get some ideas of what length others are running with a similar combo. I know they will all be different. I will post what my measurement will be later today. Thanks.
  20. supspt454

    Push rods

    What pushrods is anyone running for a 383 with Edelbrock heads and 1.6. I know factory is 7.200. I have a push rod length checker and almost to the point to measure. Just trying to get an idea what y’all using. Thanks.
  21. supspt454

    Smeding Performance 383 in a 97 C1500

    Ended up ordering a SUM-8801 cam. Hope it will do the trick for what I want in this 383.
  22. supspt454

    Smeding Performance 383 in a 97 C1500

    Got the 383 short block in yesterday earlier then expected. Everything looks great. Should be a great engine. Still trying to find a long tube header for a C1500 that actually fits, without spending a ton of money.
  23. supspt454

    Stereo Install Kit

    I saw those earlier. The 99-4000 looks like the pocket is molded to the frame. I just remember they used to sell one that had a trim piece that snapped into place with the 1/2 din cutout. Thanks for the reply. I may just have to modify that one.
  24. supspt454

    Stereo Install Kit

    Does anyone know if a company still makes an install kit to use a single din chassis and a 1/2 din EQ? I know the factory stereo is a 1.5 din chassis and they used to sell install kits to fit the standard single din stacked with a 1/2 din EQ. I’m building an old school Rockford Fosgate system...
  25. supspt454

    Smeding Performance 383 in a 97 C1500

    Truck currently has factory exhaust as this was a 305 truck, with the exception of a single in dual out Jones Full Bore muffler. I am very happy with the muffler, sounds great. But I know I will have to replace everything ahead of that.

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