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spark plugs

  1. Spark Plug Specs

    Engine
    Hello, I have a pair of 340292 heads on my 1986 Chevy K10 truck. I recently pulled a spark plug trying to find an ignition problem, and I'm wondering if the plugs are the right reach. Since the head has an angled spark plug, they are shorty plugs. does anyone know where to find the exact specs...
  2. needing some help

    Hotrodding Basics
    ok guys heres the deal, ive got an 85 gmc 4x4 with a 350 bolted up to a ch465. while out driving around it started sputtering and died as if out of gas when I got in the pedal rpms dropped even more until it died and wouldn't start again. Ive checked fuel supply and made sure the carb is getting...
  3. 283 cc spark plugs and gap

    Hotrodding Basics
    I have a 283cc in a pickup with 40000 km on it but it has been modified from origional. it has a block vin from 1962-1964 but looks like 1980's top end and has an HEI distributor. how do I dertermine the spark plugs and gap for this configuration. The vacuum gauge is showing late timing, is this...
  4. Spark Plugs: Projected vs Non-Projected Tip

    Hotrodding Basics
    Hi All, I have a general question regarding spark plugs. What is the difference between projected and non-projected tip spark plugs? The only info I've been able to find is that people use the non-projected in the forced induction applications. So for normal daily drivers, should I just use...
  5. 350 sbc fouled spark plugs

    Engine
    Hi my 350 sbc seems to keep fouling the 2 front spark plugs on the driver's side of the engine. I replaced all plugs about 600 miles ago, and the other day on the highway it starts to pop and backfire out exhuast. Got home and removed al plugs to check, the 2 mentioned were covered in a black...
  6. bosch platinum 4 spark plugs in a 454 ? or best plug...

    Hotrodding Basics
    im looking at buying a set of plugs for my 85 454 and i saw these in the carter book i got for the truck. it said they were once seen as snake oil but actually increased power and mpg. then i read that they really dont, and american vehicles hate them... so idk what to think. is there a plug...
  7. Spark Plug Application SBC

    Engine
    Hi All, I have a question regarding spark plug compatibility. I have recently got my 11:1 comp 355 sbc with 294S cam up and running using Autolite 23 plugs and all the other recommendations from F'Bird-88 (thankyou F'Bird-88 for all your online assistance - i did get the HEI dist) including...
  8. help with the right spark plug to run..

    Hotrodding Basics
    Built a mild street /strip weekend type car(nova).. Motor is a mild built 350 with some mid 90's Alum heads(angle plug).. I guess I'm curious on your guys input and what u guys would run. "at work and bored its 1am , can't stop thinking about fireing the car up"LOL Thanks for all your input..
  9. '93 Chevy 350CI spark plug depth

    Engine
    Hi ~ I recently purchased new Autolite APP 608 double-platinum plugs for my '93 350CI Chevy C1500 (Gen 1) engine. When I got them home, I noticed that they were about 1/4" deeper (from tapered seat to end of electrode) than the ones I pulled out (AC DELCO R43T). Also upgraded to MSD 48K volt...
  10. Spark Plugs: Gaps and Heat Ranges

    Engine
    Hi All, I have some questions regarding spark plugs that I haven't found complete answers to. If any of you can shed a light, it would be greatly appreciated. What is the significance of the spark plug gap? For me personally, the question stems from the fact that, while working on getting my...
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