Recent content by mamumtsllc

  1. M

    Lly/lb7 rebuild

    Truck has been down since Thanksgiving of 22. More than anything I wanted to just throw this lower end in it and get it running so I had another truck to rely on and drive to haul kids. But it's been this long wouldn't hurt to take a little longer i guess. Sent from my SM-N986U1 using Tapatalk
  2. M

    Lly/lb7 rebuild

    I have the stuff bought to build a motor. Balanced stock crank, lbz rods delipped lb7 pistons fluid damper and bd flex plate. With a new stock cam. Would I be better off just doing that and not trying to rering this motor? Just use the block and build it with these parts? Also main studs...
  3. M

    Lly/lb7 rebuild

    So my lly cracked a piston I'm assuming. (Haven't pulled out or apart) but it blew the oil gill cap off the engine when it went. So I bought a lb7 engine to use for the short block. Unknown miles just told the cp3 was bad so the guy parked it. Pulled heads and the cylinders look good. Just...
  4. M

    Stroker pump differences

    So I have a 10mm cp3 that came from (big name fuel company). Was on a customer's truck and was leaking fuel to the valley. Lift pump pressure not return or high pressure. So customer decided to swap cp3 after talking with them. So I sent one of my stock cores in and kept the 10mm pump. Thinking...
  5. M

    04 zf6 fuel knock

    Bringing this back up from the dead. Looks like o own the truck now. I ran compression test before and want to say it was in the 350 psi range but I cannot gurantee that. So I plan to get it running to pull balance rates again and then Check compression. I've seen guys say check it hot vs cold...
  6. M

    Gasket opinions

    I had my parts guy at gm order a pair of gaskets. Said acouple days to get them. Are they not a good option? I'm not really on a time crunch but I would like to have it together by spring. Truck has been down a year and I've been jumping from truck to truck this year and I'm tired of it. So im...
  7. M

    04 zf6 fuel knock

    Compression test is next in line. But let me just throw this out there to make sure I'm not missing anything. No blow by. Zero. So that tells me the cylinder walls and rings are still intact rite? No noise in intake or exhaust to give me a feeling that it has a bent, burnt or broke valve. I'm...
  8. M

    04 zf6 fuel knock

    Using a snap on Solus scan tool. I believe it actually kills the cylinder number that you select from my experience. But I will definitely pay closer attention to that tomorrow. Sounds like it's coming from the driver side. Sent from my SM-G991U using Tapatalk
  9. M

    04 zf6 fuel knock

    Hey guys. Got a 04.5 lly 3500 with the zf6 manual trans. Came in for fuel knock/miss and excessive black smoke. So ran cylinder cut out and found #6 had the knock. Kill the cylinder it goes away. Balance rate was a +8. Every other cylinder was +/- 3-4. So figured there's the problem. Changed #6...
  10. M

    02 lb7 eating ficm

    We had it tore apart the last 2 weeks putting front end parts in it. Went to crank it and it had blowed the fuse. It's weird for sure. But ill look into it! Sent from my SM-G991U using Tapatalk
  11. M

    02 lb7 eating ficm

    We bought truck new in 02. Put injectors and gaskets on it at 70k miles. Ran it to just about 150k and put another set of injectors in it. We used the good ole cheap d-tech from xdp because we had bought them for a customer and then he decided he didn't want them. So we thought why not? Seems...
  12. M

    91 c3500 6.5/5 speed repower

    My other option would be to find a 6.0/4l80 (6l90) or even nv4500 and put a cam in it. Maybe turbo to just play with. I have other duramax trucks and semi trucks to pull with. So this would be a driver/haul kids around (since I have 3 and the wife wants another) This option is appealing as the...
  13. M

    91 c3500 6.5/5 speed repower

    Yea I said 91 but I'm thinking it's 92 or 93 because it wasn't the pmd electrical pump. So its not 94 for sure. Sent from my SM-N975U using Tapatalk
  14. M

    91 c3500 6.5/5 speed repower

    I think it's just a standard 3500. The HD had the bigger wheels and funky grille didn't they? Like the commercial truck? This is just like the normal pickups with 16" wheels. Sent from my SM-N975U using Tapatalk
  15. M

    91 c3500 6.5/5 speed repower

    So my uncle had this truck and I worked on the 6.5 in it. He passed away and the truck got sold at auction. They pulled engine and trans out and sold it. I found the truck and bought it back. Thinking of going dmax with Allison for simplicity and finding them easier. Truck is a crew cab 1 ton 2...
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