Recent content by Jacknife

  1. J

    What to look for when buying used axles?

    Yes you can find 3:73 or 3:42 in 14 bolt FF. Amazed the hell out of me but actually came across a set of 3/4 ton rears the other day with 2:73 gears. Yes 14 bolt FF rear & Gm corp 10 bolt up front. I have heard of 2:73 in 1/2 ton 4x4 but the highest I had ever seen was a 3:08 in a 4x4 1/2 ton &...
  2. J

    Frames

    Don't know of any. You would be far better off finding a decent used frame & cleaning it up. A box frame will just hold mud, dirt, & salt causing it to rott faster. My opinion thats why all of the newer trucks have box frames. If our trucks came with a box frame there would be even fewer left by...
  3. J

    GM Crate Engines Question

    Thanks Chengny for the reply & link, good read. I have noticed a change in these blocks. One most recent, is that Comp Cam timing set (Gears & Chain) PART # 2100 will not work on 10067353 engine (260 HP). I am fairly sure that I have used this set several times before on these engines, but...
  4. J

    mild 350 build

    If you don't already have an engine to build, your probally better off buying a new Gm engine. The 260 hp version is on sale now at jegs for $1449 with 100% free shipping, an many other places will do a price match. If its for a daily driver you need to be more concerned with low - mid range...
  5. J

    Engine runs bad after 30 minutes of driving

    I agree. My point is, That if I was buying a biult Qaudrajet for a 383 with the bottom end torque that this engine has I think the set up for the carb would be very importtant. Yes it would still need to be dail in precisely after install. We are on the same page here, I may not word it the...
  6. J

    GM Crate Engines Question

    The Question I have, Is all the crate engine blocks from Gm the Hechoe n Mexico Blocks? I know the 260 hp & 290 hp engines are. Just wondering if the more costly engine such as the ZZ4 or 383Ht or the big blocks are still the Hecho n Mexico blocks?
  7. J

    Engine runs bad after 30 minutes of driving

    My way may be considered a bit shade tree, but I still don't have A/F ratio meters & such tools yet.Thats just what I have found to work best so far. Someone more educated will tune in soon maybe. I know this is the JET carb you bought for this engine. Was this carb supposed to have been biult...
  8. J

    Engine runs bad after 30 minutes of driving

    First I of all, I am glad to here that the situation is improving. I have always felt that the best way to tune a carb was to tune it to how it performs under load. I may be doing it wrong in some peoples opinion but thats how I have had the best results so far.
  9. J

    Engine runs bad after 30 minutes of driving

    Hope the APT adjustment takes care of it. Alot more to really tuning a Qaudrajet than most of us relize. Got my fingeres crossed, let us know if that takes care of it. I feal you may be on the right track.
  10. J

    Engine runs bad after 30 minutes of driving

    I think something is malfunctioning (possible Carb). Everyone needs to keep in mind that it ran fine for 6000 miles. So it is a matter of finding what is no longer working the way it should. Appartently the install & part selection is okay if it ran that long without any problems. I would have...
  11. J

    Engine runs bad after 30 minutes of driving

    Well he is sure enough right about GM direction. I had to check, I have this same dist. in two trucks. I thought it sounded wrong to leave it unplugged on the 383HT, but for that engine that is what they say. I copied to paste here: 4. Start the engine and adjust the initial timing. If using...
  12. J

    need help!

    Welcome Check for air leaks, carb, carb gasket, intake, inspect each vacum line for a dry rott break & that there not unplugged. Do you have a good fuel filter on? If not you may be getting trash in carb.
  13. J

    Engine break in

    Have purchased several myself. put in several more for others. Have never seen one come with oil. I have seen a person purchase a crate motor in the turn key package that came with oil to be put in, but cam in qaurt container. Never seen any crate motor come with fluids in them.
  14. J

    best bolt on performance mods

    Okay Great. I Thank each of you for your advice.
  15. J

    best bolt on performance mods

    After Taking monitor off of vehicle, I assume that you remove the sensor & plug the hole with threaded plug. I am assuming that one could have each of his vehicles set up, where he could hook up A/FR monitor and tune then remove & plug hole in exhaust. Then tune each vehicle? Or is there...
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