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  1. 98 Nitro

    Keep Manifolds or get shorties?

    Shorties help top end which matters more in Vortecs than TBI, but if you are doing the whole exhaust anyway might as well go for it.
  2. 98 Nitro

    Has anyone used a Holley 2 Barrel on TBI adapter plate

    If you are going old school HEI/Carb just get an intake manifold from Edelbrock/Weiand/87-88 Monte SS and put a Holley 4 barrel on it.
  3. 98 Nitro

    Big mother thumper cam in a 89 350 tbi, is it possible?

    I'm guessing he just wants the sound. I'd look at Isky cams, they have cams that lope but are mild.
  4. 98 Nitro

    L98 into K1500--> HEADS?

    It's not a 113 head if it is an 87 and original. They had the 128 head, which flows less over the exhaust side, has factory guideplates. If they check out sell them to a Vette owner and buy aftermarket heads., unless you really want a GM al head then send them to Lingenfelter for porting and...
  5. 98 Nitro

    BluePrint L31 Crate 350 (G3509602)

    Got an engine builder near you? Get a new stroker block and build how you want. https://www.gmperformancemotor.com/parts/19432109.html
  6. 98 Nitro

    LT1 2nd gen version power steering question

    You might look at what 94-96 Caprice used for lines.
  7. 98 Nitro

    Fuel gauge issue, but very specific situation!

    Maybe you need the 98-00 gauge cluster?
  8. 98 Nitro

    305 TBI Header (?)s

    A relative of mine had two good 305 TPI engines I could have had dirt cheap a few years ago, i did not get them because you know 305s but i wish I had as @L31MaxExpress said good 350's disappearing fast, and 305s/334s can be good runners for daily driven trucks.
  9. 98 Nitro

    Chevy distributor cap condensation issues

    Do a search here for the UMP cap at RockAuto or look at the reviews at Summittracing, the Summitt cap is the same as the UMP one.
  10. 98 Nitro

    Low Cost Camshaft Options - Need Opinions

    If it is a TBI engine with Vortec heads then yes Summitt 8800, basically a roller version of that old Melling RV cam.
  11. 98 Nitro

    Ignition control module

    Did you change your rotor? That was my problem with that code. Also I have had bad Delphi/Delco parts but Standard seems to be good, could just be dumb luck though.
  12. 98 Nitro

    Head Swap Options For 5.7L 350 TBI Engine

    Ya sure but I believe he is talking stock heads not Mexican Vortecs so no real difference. I still think his best bet buy new heads either Jegs Vortecs which are less $ than the GM Mexican ones, or Trick Flow 87-95 heads and no worries about changing intakes/water pump but obviously cost more...
  13. 98 Nitro

    Head Swap Options For 5.7L 350 TBI Engine

    906 and 062 are the same head anyway so no problem there, I think the difference in casting #s is two different plants.
  14. 98 Nitro

    Are United Motor Products distributors adjustable for Cam Retard?

    You need the GM hold down to adjust it, and the code doesn't pop up unless it is +-13 I believe. My UMP ran better with a Standard cap, though I didn't have their better cap.
  15. 98 Nitro

    880 vortec blocks, what pistons?

    You can buy a ZZ short block but it is like 4k.
  16. 98 Nitro

    Need assistance!! Please, any input is welcome...

    I think he just needs the stock adjustable hold down, that UMP one comes with a non adjustable clamp.
  17. 98 Nitro

    Head Swap Options For 5.7L 350 TBI Engine

    An option if you are worried about cash upfront is to buy the Edelbrock Performer Centerbolt heads with the Affirm app. Or both Jegs and Summit have the pay in four with PayPal. Dart and Trick Flow have 87-95 style available but mostly not in stock until Apr/May but Summit does show both 1...
  18. 98 Nitro

    Head Swap Options For 5.7L 350 TBI Engine

    Sbc heads starting around 74 were thinner than those early muscle car heads. I have a set of 492's like 70 Vettes and Camaros had, with 2.02/1.6 valves that have been ported, definitely a heavier head than say Vortec/Tbi heads. But having said that both my 94 and 98 trucks have 200K miles on the...
  19. 98 Nitro

    Used LT1 350 Camshaft Swap Into Truck Block w/Vortec Heads?

    Why not just sell the engine to a Camaro/Firebird owner, and install something like the Sum 8800 cam?
  20. 98 Nitro

    Head Swap Options For 5.7L 350 TBI Engine

    Yes the Melling cam is a cheap upgrade over stock if you ate going with TPI or 350 Vortec heads. The Eddy cam according to it's designer who use to be an editor at CHP magazine said it was for those early 80s 305 engines, I also agree a single pattern cam would be better for TBI heads or 305...
  21. 98 Nitro

    Head Swap Options For 5.7L 350 TBI Engine

    I remember you from the TGO and FSC boards and to take any power claims you make with a grain of salt, and that you love to argue. Having said that hey believe what ya want.
  22. 98 Nitro

    Head Swap Options For 5.7L 350 TBI Engine

    Ya @L31MaxExpress the vortec 350 has slightly better cam and exhaust but the heads are by far the biggest improvement, it's why so many TBI owners put Vortec heads on their trucks and none complain about having less tq to 4000 rpms.
  23. 98 Nitro

    Head Swap Options For 5.7L 350 TBI Engine

    Ya that's why GM rated TBI's as 310 tq @ 2400 rpms and Vortecs as 330 tq @ 2800 rpms. As an owner of both a 94 and 98 xcab 350/AT/3.42s I concur GM got it right.
  24. 98 Nitro

    97 305 vortec p0305 and p1345

    You mentioned a new cap but not a rotor which solved a misfire for me and you need to check cam retard.
  25. 98 Nitro

    Head Swap Options For 5.7L 350 TBI Engine

    Mexican Vortecs with the redesign to be less crackprone maybe, but original Vortec stockers are better at 3000 rpms and up easily and only lose torque off idle.
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