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  1. 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...
  2. 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...
  3. 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...
  4. 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...
  5. 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...
  6. M

    Twin turbo lml P16a1

    I have a twin turbo lml with sdp kit on it. The fuel pump was leaking fuel but he was not happy with the tuning. It was real bad laggy and derated. We fixed the pump issue. But rite now the only code it shows is p16a1 for the throttle valve that's there by the grid heater. We obviously don't...
  7. M

    125k mile turbo junk?

    I got a 17 3500 that's throwing a p100b turbo code. It's all stock. We put a new actuator on it and same thing. Is this thing really going to need a turbo this early in life? Sent from my SM-N975U using Tapatalk
  8. M

    Lbz swap in

    Hey guys I toasted my 330k mile 06 lly/lbz back last year. So finally after gathering parts and planing to build a motor I have picked up a complete lmm to just put back in and go. I would like some input/suggestions on what I need to look at doing while its out as far as parts that are easier...
  9. M

    Allison 5sp: Air Flow parts recommendations

    I have a lly that I'm going to put 100% over injectors, 10mm pump and S369 turbo on. Looking for recommendations on y-bridge, manifolds and up-pipes Thanks Sent from my SM-G892A using Tapatalk
  10. M

    Allison 5sp: 3500 drw lift and tire/wheel question

    I have a 06 3500 drw. I'm about to swap front differentials due to a gear change. I'm leveled now with 295s on my stock steel wheels. I'm looking for opinions and feedback on wether to just leave it like it is (doesnt wear the front tires funny and drives good rides good) or put a 4-6" lift on...
  11. M

    Air flow upgrade

    Not your usual turbo questions. But instead what air flow upgrades would you guys recommend and in what order. Truck is a 06 GMC 3500 dually. Will get new stock injectors soon. Has new cp3 (less than 15k miles) head studs, egr deleted with pro fan inlet and down pipe. Built trans. Danville 2.5...
  12. M

    Towing rpm range

    I have a 06 3500 6 speed Allison. It's got 3.73 gears and 305 tires. I feel like the rpm is a little too low for that setup to tow very much or very far. The majority of my towing will be farm related here around home so I won't hardly ever get in 6th gear. But this winter I hauled some cattle a...
  13. M

    Cp3 differences

    Can anyone tell me if there are any differences in lb7 vs lly vs lly/lbz/lmm cp3 pumps other than the regulators? Sent from my SAMSUNG-SM-G891A using Tapatalk
  14. M

    99-02 vs 03-07 interior

    Just wondering if anyone else has put 03 up seats and center console in a 99-02 truck. I have a 02 regular cab that I want the center console put in but I like the 03 up more than the 99-02 console. Just wondered if anyone else had tried and succeeded or not. Thanks! Sent from my...
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