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  1. gpmorgan

    speedo questions

    My factory in dash speedo needs an elec signal or ecu, one of the two. Was looking at a few units that go on the trans that work off of the cable hookup and convert it to a elec signal. Not sure which one I need for my 92. There are a couple of different type signals they send. Got to do some...
  2. gpmorgan

    speedo questions

    Yeah, it may take some trial and error, but you (we'll ) get it. There is always some unknowns when making changes.
  3. gpmorgan

    Drop Shackles on a Suburban???

    I hope you had the bed off.
  4. gpmorgan

    speedo questions

    I put some 410 gears in my 92 2wd with a 700r4 and my speedo was 20 mph fast. Now I have a th400 that I need an adapter for because my speedo is elec and my trans is mechanical. I use my tach for a speedo now until I get what I need for it. I put the 308 gears back in and I have a 17 tooth drive...
  5. gpmorgan

    87 R10 tank and pump for 82 C10 with EFI

    I have a 92 with a fitech 1200 power adder. I used an aeromotive 90psi pump with factory return line on my big block. Pump went in factory location. Had to eliminate factory wire connector but that was no problem.
  6. gpmorgan

    motor mount question

    The mounting pads on the block are further back on the big block. The big block will sit higher and toward the front more.
  7. gpmorgan

    No spark, No fuel 1990 5.7 TBI

    Yeah that moisture is a problem with those distributors. First time I changed my rotor on my 92, I had to bust the rotor to get it off. I didn't have to replace dizzy though.
  8. gpmorgan

    Fuel filter vapor lock

    Try blocking the return line off and see what happens.
  9. gpmorgan

    Power steering pump troubles

    I would take the pump back and try another one. I got one from autozone a couple of months ago. No problems. Mine is the Saginaw with the keyway. The pump shaft is threaded and uses a nut to hold the pulley on. I had to change the fitting also to make my metric pressure line fit. That fitting...
  10. gpmorgan

    motor mount question

    Yes, mine did.
  11. gpmorgan

    454 upgrade

    I'll have to agree. No gear drive for me. Not to fond of all that turbo noise either. N/A is my preference.
  12. gpmorgan

    Looking for a cam

    There are some good vids on youtube concerning valve shrouding. Take a look and you'll see what I'm talking about.
  13. gpmorgan

    Looking for a cam

    Oops. Missed that part. Those 410s you have will work pretty good.
  14. gpmorgan

    Looking for a cam

    Don't forget to unshroud the valves if it hasn't been done. It helps the flow greatly. With 9:5 compression a .5 lift should work pretty good. 342 gear and 2500 stall would help also. I wouldn't go over a 195 runner for that 355.
  15. gpmorgan

    K20 '82 350 Performance Engine Parts

    Yeah, I would call lunati and get their recommendations on springs, compression ratio, gears, and stall. Do you know the cam specs. What lift and duration.
  16. gpmorgan

    Should I cut more coil?

    I'm seriously thinking about a 4link and coil overs for mine. I need traction and strength. Want to eliminate spring wrap.
  17. gpmorgan

    Limits of Vortec Heads

    Yeah that's true. Not sure it would need the self aligners with the heads set up for that cam though. But there's no excuse for the short valve covers, unless there are no tall covers available for the center bolt style. I personally wouldn't use that style head for performance, so I don't know...
  18. gpmorgan

    Limits of Vortec Heads

    I'm sure if it was built by a reputable builder, they would know if the parts were compatible. The things I mentioned should have been checked. Put those new rockers on and give it hell.
  19. gpmorgan

    Should I cut more coil?

    Put a iron headed big block in it. Problem solved. Lol.
  20. gpmorgan

    Limits of Vortec Heads

    To check valve geometry you need to mark the valve tip and install the rocker . Spin the engine over . Remove rocker and look at where the roller is moving on top of the valve. It needs to stay in the center on the valve tip as much as possible. To adjust you will need get an adjustable push rod...
  21. gpmorgan

    Limits of Vortec Heads

    If you don't have a coil bind issue, I would make sure the valve geometry is correct. After checking, spin the engine by hand, about a quarter turn at a time, and inspect each rocker for contact with the castings.
  22. gpmorgan

    Limits of Vortec Heads

    Yeah, you need a rev limit with that solid roller. Lol
  23. gpmorgan

    Limits of Vortec Heads

    I don't think those dual valve springs would fit the spring pockets if they weren't machined. I would check for coil bind. It's been a while but I think you need at least 60k between the coils when full lift is achieved. As stated, those vortec heads need quite a bit of machine work when using a...
  24. gpmorgan

    Should I cut more coil?

    I like the rear to squat a little, so I like it as it is.
  25. gpmorgan

    Gear Ratio Selection

    I recently installed a set of 410s in my son's tahoe with 35s. It was a great improvement.

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