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  1. Danimal08

    Smeding Performance 383 in a 97 C1500

    Good luck with the misfire. Those are always fun to chase down...411 PCM will likely be my next stop to wake this 5.7 up a bit. Sounds about like the combo I had spec'd out. I bet itll be a monster when its sorted out. I was stunned at the cost of those heads. But Im also stunned at the cost...
  2. Danimal08

    Smeding Performance 383 in a 97 C1500

    Thanks for the feedback. I spoke with them while researching...I liked everything they had to say except the China-forged block. I ended up buying and resealing a used vortec to get my rig back on the road for the summer here. If I end up keeping it, itll be a toss up on whether a 383 goes in...
  3. Danimal08

    1999 L31 Engine with nearly 260k, Timing chain plus what else?

    Sorry, I'll clarify here...this project has been a bit of a saga for even me to keep straight. I bought a used engine for my project truck a few weeks back after finding that my engine was pretty much toast. I cleaned up, repainted, resealed, etc the used engine. While it was apart during...
  4. Danimal08

    1999 L31 Engine with nearly 260k, Timing chain plus what else?

    Updates: If you want to be alerted to the fact that you have a bad chain, install a Holley cover. ;)Put new cloyes C3017 set on it and shes quiet as a church mouse with the Holley cover. While I had the new to me engine apart cleaning it all up and resealing, I regretfully skipped a new chain...
  5. Danimal08

    1999 L31 Engine with nearly 260k, Timing chain plus what else?

    I thought it was weird too. Definitely chain noise I'm hearing. I put the silent-type back on it to see if it would help. Im waiting on gaskets to button it back up as I had to drop the pan to reinstall the cover. Tried three different timing sets on it and all were what I would consider sloppy...
  6. Danimal08

    1999 L31 Engine with nearly 260k, Timing chain plus what else?

    Just a heads up on the Holley cover- not sure if anyone else has experienced this, but it seems as if the aluminum cover acts as an amplifier for chain noise... Just buttoned an engine all back up and went with the Aluminum cover... you can hear every little rattle that chain makes with the...
  7. Danimal08

    Hello All- New here with a new project!

    Back on the road! Took the used engine on a solid shakedown run tonight after resealing everything. Ran it hard- Hot idle holds at 20psi, cruises at 40psi, and 55psi when it kicks down on 5w30 full synthetic. Runs like a champ. I'm currently regretting not replacing the timing chain while it was...
  8. Danimal08

    Slight knock?

    Rolls-Royce quality :rotflmao:
  9. Danimal08

    Slight knock?

    There was also a TSB I think I remember reading a long time ago that also when I was concerned about this very noise that discussed having to measure and replace main bearings in .001 sizes to correct a bottom end knock (I'm 90% was warranty complaint related)...dont recall the details exactly...
  10. Danimal08

    Slight knock?

    I've owned three of these. All of them had a slight bottom end knock on cold starts. First one had 349k when sold...ran the dogpoo out of it. My dad is still driving one with 250k. I'm currently replacing engine in the third after discovering poor quality rebuild after pulling apart to do head...
  11. Danimal08

    Best Intake gaskets

    I doubt they last also, but gonna give the benefit of the doubt for now...the fiber gasket seems like the way to go on them with sufficient torque. That'll be perfect timing to build a nice little "eco-boost" 5.3 for it. I'll update here and in my project thread when they fail... I've had two...
  12. Danimal08

    Best Intake gaskets

    I'd agree- not an optimal bolted joint design. Guessing they prioritized clampload of the coolant passages when they went to vortec heads which likely had a little more heat in them. Seems like they used the composite gasket to allow for some flex in the aluminum. Ended up using the Mahle...
  13. Danimal08

    Best Intake gaskets

    I know this is a couple year old post, but I wanted to point out a potential issue when using the 1255s for anyone who stumbles on this thread like I did... After a lot of research on what to use on my project, I bought a set of 1255s because it seemed like the logical choice when evaluating...
  14. Danimal08

    Hello All- New here with a new project!

    Forward progress! Engine is back in. Taking some time to repair the tape and cor-tube on the harness as I go...its fairly brittle. Currently at a standstill while I wait on parts. Hoping to have it back on the road next weekend.
  15. Danimal08

    New member with a k2500 suburban

    So much room for activities!
  16. Danimal08

    Hello All- New here with a new project!

    I can only imagine...LS EcoBoost! Without the Eco. Just seems like a good idea. You still get the more modern (but aging) FI system, economy, reliability, and power of the LS, and as much power as you want when you plant your foot in it. Loads of real estate to pull it off too.
  17. Danimal08

    Hello All- New here with a new project!

    Updates- After teardown of my peanut-butter filled "original" engine and over-analyzing a boatload of options (LS swap, crate l31, smeding 383, etc) I picked up a new-to-me L31 from a 2500 last week with 150k miles. Seemed to run great...no knocks or smoke and compression galore. Giving it a...
  18. Danimal08

    Smeding Performance 383 in a 97 C1500

    I ask because I'm considering their short block and there isn't a lot of folks out there that have left many reviews. The last couple years have been unkind to engine prices.... Getting dang near unaffordable. Local shop quoted $7500 to completely rebuild my L31. I can get a new L31 long block...
  19. Danimal08

    Smeding Performance 383 in a 97 C1500

    Hows your experience with the smeding short block so far?
  20. Danimal08

    Hello All- New here with a new project!

    Alright- at a crossroads and need some input/advice. I've got my tree-fiddy torn down. Bare minimum shes gonna need heads, bearing set, gaskets, crank polish, etc. Its had a recent rebuild as there is no discernible ring ridge, etc and its 30 over. Rebuilder pistons sit in the hole at TDC...
  21. Danimal08

    Hello All- New here with a new project!

    I also left out that it had the crappy plastic intake gaskets that came apart in pieces when I took it apart. Also very little torque if any on the front two intake bolts...all of the coolant passages were full of stop leak...guessing more likely than not that intake gasket was the problem
  22. Danimal08

    Hello All- New here with a new project!

    Well the more I'm digging into this, the shortblock is in pretty good shape. It looks to have been recently rebuilt. 030 over and some possible journal work or rebuilder crank...seems to measure 3.520 on the stroke with about a .028 quench. It's super clean overall. All of the cylinders still...
  23. Danimal08

    My 98 Chevy 1500 With 454 7.4L Swap

    how is the performance of the truck with the 454 vs 350? Whats the "seat of the pants" feel? Any MPG data? Worse or better than you thought?
  24. Danimal08

    Hello All- New here with a new project!

    Welp, got some motivation to work on the project. Bad news... no sign of leaking intake gaskets. Also signs of copper leak stop so guessing the old girl had some secrets. Anyone need any peanut butter? Time to make some decisions...SBC vs LS. I have a perfect LM7 donor for this that owes me...
  25. Danimal08

    Hello All- New here with a new project!

    Houston, we have a problem... Took the project out yesterday to wash the dust off and let it run... Checked the oil- over full. Checked the coolant. Empty. Runs fine-ish. Gonna change intake gaskets to start...we will see...

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