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  1. rfletes79

    LB7: Engine knock possible in the head??

    Cts monitor is cheap and easy to see balance rates. Or a good scanner. An injector going bad, or bad can/will knock and more then likely smoke or stink like raw fuel coming out of tailpipe. Sent from my iPhone using Tapatalk
  2. rfletes79

    Lb7 4l80

    I currently run an LB7 with an 80 behind it in my Chevelle. Exactly as described above with a pcs2800. Biggest hurdle will be the converter, if you make any power and want to go fast. We’ve since put in a ton of R&D making it work and got it dialed. So far we’re at over 1500hp at the crank and...
  3. rfletes79

    Injector stuck open LB7 (maybe)

    I’ve had 3 sacs get stuck on me. 2 LDS 45’s and 1 SAC00. The sac was contaminate in the line, while going back together after an engine rebuild debris was introduced into the feed line which made it to the injector. I use Injector’s Direct for all my fuel needs (now) and they were able to fix...
  4. rfletes79

    05 LLY, remand long block, sitting 2 years, new injectors etc. Crank no start.

    Confirm fuel at the fuel port behind/on top of alternator after pumping primer (do not open bleeder at primer). Just hit it with a screw driver after priming system. Preferably while priming. Confirm communication with ecm with key on. If you can communicate, then check for codes. Start here...
  5. rfletes79

    LB7 to LB7 swap

    01 & 02 have the same eop sensor. Y bridge is different in those as well. 03 and up have the same eop sensor. These sensors and harnesses are not interchangeable with the 01/02 engine harness. Federal engine harnesses vary slightly depending on year, map location, jumper harness, eop/oil...
  6. rfletes79

    Tuning in an Older Swapped Truck

    We’ve swapped a bunch of vehicles throughout the years. All old school, 60’s, 50’s and 70’s. No issues with inspections or epa or etc. from all over the country. Most in cali. You won’t have an issue, roll with it. Sent from my iPhone using Tapatalk
  7. rfletes79

    LB7 fuel line clean up in the valley ??

    You cannot delete the sensor. I repurposed mine as an intake temp sensor. I’m pretty sure I posted this info in another thread years ago when I did this. I tapped threads in the bottom of the Wagler intake next to the npt ports. Now I capture the data via efilive too. Sent from my iPhone...
  8. rfletes79

    Anyone doing the 02 LB7 to LLY conversion harnesses?

    It’s possible. Very similar to the 03/04 Lly swap, in fact 100% of the modules are the same for this swap (01-04). Just needs the Lly chassis harness modified and the right Lly tune. Technically any Lly tune will work and run, but without the correct one your ac won’t function. As far as the...
  9. rfletes79

    LB7 stand alone harness questions

    Bcm is not needed at all in a standalone lb7. Disable the vats and roll Sent from my iPhone using Tapatalk
  10. rfletes79

    Stroker pump vs dual pumps

    I currently run the ss 14MM. And have for the last year, currently at 6k miles this year. And calculated 1300rwhp Previously ran an exergy 12mm pump for the 2 previous years (before the 14) put about 20k miles on it. Ran an exergy 10mm for 2 years, put over 30k miles on it and now it’s on a...
  11. rfletes79

    1/4 mile discussion and time slips post here!

    Can more nitrous help with egt temps?? Sent from my iPhone using Tapatalk
  12. rfletes79

    1/4 mile discussion and time slips post here!

    Legit. Thx for the info. I knew it was legal, I just never looked up the rules to see exactly what was all entailed there. I can see why it makes a big difference on your truck. Great job again. Sent from my iPhone using Tapatalk
  13. rfletes79

    1/4 mile discussion and time slips post here!

    Wow, so badass. Happy for you and your team!!! Put it in the 6’s!! And over 188, tired of that other guy. Let’s talk about the pecker….. wtf?? How long is it, how long has it been on?? Obviously I know it’s allowed. Not saying anything bad about it. Just curious cause it really stands out...
  14. rfletes79

    02 engine to 03 truck swap oil indicator not working

    I spoke to this in your previous post about the engine not running. The 02 engine harness doesn’t support your 03 ecm or cluster. There’s a jumper harness going from the engine harness to the eop sensor and the oil level sensor, it connects to a pigtail on the driver side clamshell. The...
  15. rfletes79

    Swapped engines,won't start...

    All the lb7 engine harnesses are interchangeable. The only issue you’ll run into is the eop sensor and your cluster. There might be other issues if you mix federal engines with California engines but technically they’ll still run, just have left over plug and or a cel fir stuff that is...
  16. rfletes79

    Swapped engines,won't start...

    I read your post again, looks like you installed the engine harness, as the 02 one is different. In the process of installing the 03 harness you plugged in the cam and crank sensor, or you should have. Check those connections at the cam and crank sensor. Your issue is there. No doubt. They’re...
  17. rfletes79

    Swapped engines,won't start...

    If you kept the original ecm with the truck then the vats, anti-theft, should NOT be an issue. If, on the engine you installed, you installed the engine harness or the cam &crank sensors, you may have those transposed. The sensors OR the connectors. Those need to be correct for the engine to...
  18. rfletes79

    I was in Denial about headgaskets

    Pm sent. People frown on here if I recommend places that aren’t vendors on this site. Sent from my iPhone using Tapatalk
  19. rfletes79

    LB7 Short block in an LMM truck

    It’ll work. Yes you need to change the reluctor wheel. Oil pan needs to come off for this. Which means so does the flexplate. Yes use the balancer and flexplate from the lb7, your LMM stuff is wrong. Depending on the year of your lb7 will dictate which eop sensor to use. It needs to match the...
  20. rfletes79

    I was in Denial about headgaskets

    SoCal diesel does not do work like that. Here in NorCal pricing is about 5700 all in. Studs, wp, Mahle gaskets, new Bosch return lines, etc…. Also includes pressure and vacuum testing heads, cleaning and resurface. Valve job or head replacement would be extra. Sent from my iPhone using Tapatalk
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