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Recent content by Muzz

  1. M

    Help! Hooker Side Exhaust Headers or standard headers:

    Hookers FTW I purchased my black Hooker headers and 4" side pipes quite a few years ago, about '92. I was afraid of the noise so I got the glass pack inserts as a compromise. They were not as loud as I thought they would be and I never had a problem with officer Fukarre. Performance was great...
  2. M

    ZZ4 Partial Engine / L-48 Compatability?

    Well many moons have passed since my last update to this thread. Since that last post I have learned much, most often as usual, the hard way. I want to highly recommend these "mufflers" for use in 4" Hooker side pipes. They are without a doubt the real deal and makes your car sound the way you...
  3. M

    Centrifugal Advance Starts Too Soon

    MY HEI distributor came with an AS-20 vacuum advance unit which can be tuned by using an allen wrench to adjust how much advance it will yield at the rated vacuum. I was able to adjust it easily from lock to lock took about 9 turns. If yours is adjustable that will get you where you need to go I...
  4. M

    Horn Button

    Oh yea, I have the assembly manual and it has been very helpful. Every Vette owner should have one. I see the exploded view but am not sure just how far I have to tear this steering column down to get to where I can replace the horn parts. I was hoping to have a bit more guidance but the book...
  5. M

    Horn Button

    AIM? Sorry, that one didn't register...must be I don't have it.:confused:)
  6. M

    Horn Button

    Tilt telescopic steering column BTW.
  7. M

    Horn Button

    My horn works.....but only if I prompt the relay to close by applying a signal on the wire exiting the steering column in my '75 coupe. I don't remember if it is a +12v or a ground signal as I write this but I know the problem is not in anything outside of the steering column. It may be my...
  8. M

    ZZ4 Partial Engine / L-48 Compatability?

    Well I got the timing pretty close to optimum based on how well it runs. :D Now the BAD news. Since it was a gorgeous fall day and I had to go to the Dr. for some tests, I decided to take my newly finished and spotless street rod into town. I got about 3 miles from home, traveling at about 45...
  9. M

    ZZ4 Partial Engine / L-48 Compatability?

    Well folks, new set of plugs and a new set of MSD wires are now installed. It starts, it runs on all 8 as best I can determine, it roars...some. Now I need to get the timing back to where it needs to be and I think it will be tranny project time for my baby. :thumb
  10. M

    ZZ4 Partial Engine / L-48 Compatability?

    The TH-400 has a shift kit in it now. The $400 estimate was the high ball park figure and it will likely be less as it isn't in bad condition. I just want it to be as good as I can make it without replacing it. It has 125K miles on it and when this motor starts working like it should I want to...
  11. M

    ZZ4 Partial Engine / L-48 Compatability?

    You are correct Bill. Now I can focus on removing the TH-400 and taking it to get refurbished. I have an ace repair facility that will do it for $400 if I remove and install it. Looks like that will be my next project. After 24 years of working toward getting this car restored/refurbished I am...
  12. M

    ZZ4 Partial Engine / L-48 Compatability?

    I work in electronics and have much experience troubleshooting complex communications systems and helping other techs solve the tougher problems over the phone sometimes. It is kind of a joke in servicing that goes something like this: "Is it plugged in?" That is a very basic question you have...
  13. M

    ZZ4 Partial Engine / L-48 Compatability?

    Thanks Jack. Taking your advice, I looked again this morning and found a performance machine shop only 13 miles from my home! Google is terrific sometimes. So, I take my L-48 block and rotating assembly to them and for about $300 it gets the needed attention and I can rebuild using all the...
  14. M

    ZZ4 Partial Engine / L-48 Compatability?

    Thanks for the info Bill. I already have all the good stuff to put on the ZZ4 partial. It is now on my original L-48 block and runs pretty well but only on seven of the eight as #8 is pretty much just along for the ride. Heads are Trick-Flow Aluminum 23 degree / 64cc / 195cc / 1.25" springs...
  15. M

    ZZ4 Partial Engine / L-48 Compatability?

    Has anyone ever swapped out the stock lower end of a '75 350 L-48 engine with one of the GM Performance Parts ZZ4 Partial Engine assemblies? I purchased this '75 T-Top with TH-400 from the original owner when it had about 90,000 miles. At 100,000 miles the air condix compressor locked up. In...
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