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  1. International47

    EBL-flash and 4L60E control?

    Thanks for the response, If you remember any other details about the conversion. please let me know. how long did you use your truck with the duel computer setup?
  2. International47

    EBL-flash and 4L60E control?

    I wouldnt be making power in that range... tbi even with the LT1 cam would stop making power at 5k. so the stock shift points would be more than fine, no need to modify them.
  3. International47

    EBL-flash and 4L60E control?

    the ability to Tune the engine; because of the heavily ported 193 heads, ported 3704 intake, flattops, 15psi fuel spring, and cam is being changed most likley will not play nice with the stock computer programing. (either a rv cam(summet 1102)- or a melling 1336 (lt1 clone)- haven't decided...
  4. International47

    EBL-flash and 4L60E control?

    yes, the second computer that was written, although not completely clear. I need to use the stock computer to control the stock 4l60E. the ebl modified computer controls the engine. 2 different computers. I should Add its 95 TBI, stock computer, stock trans ( aside from a few internal...
  5. International47

    EBL-flash and 4L60E control?

    Hi I'm looking for info on how people have done the Electronic transmission control portion of ebl flash install. I need to use the stock computer to control the 4l60E trans. the ebl modified computer controls the engine(6299). 2 different computers. I should Add its 95 TBI, stock...
  6. International47

    Help vortec head swap engine doesnt run right

    L31Max- I know you have done the ported tbi heads a long time ago. Would the increased fuel pressure ( pump-spring) be enough for the stock tbi computer to make it run ok on ported tbi heads/ vortec heads? Or would the overall increased fuel , be too rich at idle and not enough at higher...
  7. International47

    Help vortec head swap engine doesnt run right

    I'm interested is this, as im about to do something similar. ( heavily ported tbi heads that should flow close to vortecs and either the LT1 or good old rv cam) What fuel pressure do you have? fuel pump, fuel pressure spring? have you deleted the EGR? And EBL-flash tuning i believe would be...
  8. International47

    cutting down the valve guides- now springs are too big

    So I have bought the spring cups and summits spring kit to match the cam- ment for older Gen1 heads. .490 lift summit springs with the inner damper measure a inside diameter .774", the TBI spring base is .761" Its a much better fit but the springs are still a bit loose. The TBI's set up...
  9. International47

    cutting down the valve guides- now springs are too big

    I havent decided yet, I have 2 sitting here, Melling 1336 ( 1995 LT1 copy), and a summit 1102. both top out at 460ish lift. I have a running 1995 tbi in the truck right now- non roller flat tappet And on a stand- needs aligned honing- is a 1993 355-roller motor. Leaning towards the flat...
  10. International47

    cutting down the valve guides- now springs are too big

    Thank you for responding and attempting to give some ideas the issue has nothing to do with the spring pocket. the spring pocket on TBI, Vortec and LS are all 1.26-1.27. Vortec and Ls aren't really pockets- more of a flat machined pad, same goes for the all the intakes on a TBI, only the...
  11. International47

    Head Swap Options For 5.7L 350 TBI Engine

    The LS swap isint that easy, if your not using the trans that came with the LS then what are you using to control the old 4l60E? unless its a 5sp trans. new trans usually involves cutting a new driveshaft. you need to update the fuel pump- possible lines. exhaust needs a bit of work to bolt...
  12. International47

    cutting down the valve guides- now springs are too big

    Stock LS beehive spring and stock Vortec springs, and most drop in .500 lift vortec spring kits all have the same internal diameter of .880 The stock vortec guide base is .880, so yes they are a direct swap. The TBI and Vortec seat pockets are the same diameter at 1.26. TBI and Vortec have the...
  13. International47

    cutting down the valve guides- now springs are too big

    Hi as the title states, I cut the valve guide down for more seal to retainer clearance. This is on a set is 193 heads. Now I have a problem ( I guess i always did, I just didnt measure) I used a Howards cams cutter ( Just like Comp Cams) to lowered the guides 5mms and the cutter narrows...
  14. International47

    1995 4L60E rebuild questions.

    Thank you for the in depth reply. I had a follow up question. The boost valve kit, from the reading I did, its ment to increase line pressure and firm up the shift. the vette servo will also firm up the shifts and the Sk shift kit will additionally firm up the shifts. I was not planning on...
  15. International47

    1995 4L60E rebuild questions.

    Hi, as the title states, I have the one year only 1995. It drove fine..4ys ago A local shop has quoted me $1500ish to rebuild it. He suggested upgrading the sunshell, reverse sprag and vette servo. My questions is, I had previously (3yrs ago) bought the transgo shift improver kit, separator...
  16. International47

    Edelbrock TBI 3704 intake

    H, I just picked up a new used intake. the Edelbrock 3704 TBI intake. Someone has already opened the bores to 50mm and cleaned up the walls into the plenum. no gasket matching or port work. I was curious if anyone has used this intake? has anyone ported/ gasket matched it? And has anyone...
  17. International47

    Valve spring upgrade on 810 heads?

  18. International47

    Valve spring upgrade on 810 heads?

    I'm rebuilding a roller block 350, its been bored .030 over. I currently have the roller cam and all its supporting assembly from a low mileage vortec. Plan is to mildly port and polish the heads and put either the stock vortec cam or a mild roller cam into it (Rock Auto has the 93-95 LT1 cam...

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