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  1. 4th Gen F-Body
    OK everybody I am having a problem with my spark. So a couple days after I bought the vehicle I watched it and I went and drove it and I press the gas pedal and it hesitated then shut off a couple seconds later and had to get it towed to a shop. They ran the codes it was a P0335 and a PO336 code...
  2. General Tech
    Hey Im working on my 97 trans aml t1 and I am looking to put new headers and a cam in it. I'm not sure what cam I want to put in it. I want something more aggressive than stock but not something crazy. I'm still in high school so I cant dump to much money into it besides a cam and headers. I...
  3. Parts For Sale
    My 383 LT1 blew up after several years of driving. Took out the side of the engine block. Need a replacement to rebuild, but can't seem to find any in the salvage yards now. Any leads?
  4. News & Announcements
    Im wanting to build my lt1 on my 95 Trans Am, but am having trouble on where to start off to gain more horsepower without breaking the bank right away.
  5. LT1 | LT4 | L99 Engine Tech
    What all wiring adapters do I need to swap a 95 wiring harness into my 93 I know the opti, iac, coil, wiring plugs are different what can I do besides buy a 93 harness to make this 95 work? Can I buy a 95 coil will it work with my opti? Thx for all the answers...
  6. LT1 | LT4 | L99 Engine Tech
    I have a 94 LT1 out of a chevy caprice interceptor with a painless harness installed. I pulled the engine and put it into a rat rod project I've been working on. While the engine was out I replaced the spark plugs, wires, coil, icm, optispark, and the fuel injectors. The air pump was also...
  7. LT1 | LT4 | L99 Engine Tech
    I’ve had it, today at crew car wash my $500 MSD Optispark went out for the third time in the last year and a half. Error code for low and high res showed up. I’m not doing this anymore , what alternatives are there to Optispark that actually work other than the method of using the optical sensor...
  8. PCM tuning & Computer Diagnostics
    Hey all, Im trying to learn TunerPro still over these last few days. However there are a few tables that i dont really understand how changing them effects the various values. PE AFR Correction - RPM and Coolant, CORRCL airflow %, DFCO spark blending, Maf calibration. Overall i would like to...
  9. PCM tuning & Computer Diagnostics
    I have a 12pin OBD1 ALDL cable hooked to my 1994 z28 M6. I literally just today read my base tune and have been looking at it and comparing it to some other free tunes ive found around the web. I have Pace setter long tubes , 1.6 RR and a cold air intake so ive been looking for a tune that fits...
  10. LT1 | LT4 | L99 Engine Tech
    Im currently taking apart my engine, i want to swap out the oem cam for a performance one. Im gonna get a new oil pump also and maybe change the opti spark on it. Do yall have any advice for installing the new cam and rockers ? Cuz i heard that theirs a procedure for the rockers. Im new to...
  11. LT1 | LT4 | L99 Engine Tech
    my 1996 trans am has a strong gas smell at the rear of the car and i can’t find out why if y’all could please help me and lead me in the right direction, also kind of sputters at idle but will take off like a bat out of hell
  12. LT1 | LT4 | L99 Engine Tech
    Can I run E15 in my 1994 vette? Will it damage the engine or will it be fine.
  13. 4th Gen F-Body
    I want to do tb, heads, springs, rr, and cam what do yall recommend? it is a daily driver but im looking for low 400s hp range, but i also want it to sh** and get
  14. LT1 | LT4 | L99 Engine Tech
    Hi All, I have a 1994 Camaro Z28 with 98k miles that is having some idle issues and misfires when warm. I have had the car since 80K miles and I didn't have any issues before this. The issues started last summer and I have not been able to diagnose the issue. Once the car warms up to temp...
  15. Automatic Transmissions | Torque Converters
    hay everyone, I have a pontiac firebird 94 with lt1 after a several trans rebuilds i decided to swap the 4L60e to 4L80e the trans that i got have 2 speed sensors and i didn’t know how to connect them, on the ECU i got red, black, gray and blue connectors Someone can help me with that?
  16. General Tech
    I have a spline drive lt1 and need a adjustable timing set and I'm planning on using two timing set a roller cam gear with the distributor drive and a adjustable crank gear is this possible
  17. LT1 | LT4 | L99 Engine Tech
    So I recently bought a 95 formula, it needed a tune up. So I put plugs, and new wires. I still had the same issue. I changed the optispark. Well then I had a crank no start it was ignition cont. mod. It’s alive again, but since then it hasn’t been right I’ve tried a lot I put a new fuel filter...
  18. LT1 | LT4 | L99 Engine Tech
    Hi, i've got a 1994 Camaro 5,7 Lt1 manual and i got pretty weird probleme. I've already change the spark plug, wire, opti spark (not a original), the water pump, the timing chain and the front cover casket. Since then I've done 12 000 Km whitout any issues. I've also change the gaz pump and the...
    lt1
  19. 4th Gen F-Body
    Hey guys just thought i would put this out there so others can know about these awesomes header i received today LT1 XS Power Longtubes 1-3/4 stepped to 1 7/8ths 321 stainless with velocity spike which is great I ordered theses headers a few day ago after stumbling across them and can't be...
  20. News & Announcements
    Thanks to an upgrade in our forum software, I'm happy to announce we now offer myspace-style member pages for each LS1LT1.com member. Features: Detailed member profile, including "about me", your posting stats, your friends list, and contact info Fully integrated photo albums (will replace the...
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