Lt1 headers?

Discussion in 'High Tech Retrofits' started by Spot_remover, Aug 19, 2009.

  1. Christian GM

    Christian GM Veteran Member

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    I've the uncoated 68609 on mine.
    they fits really web, in my work in progress process today I plan to install the 2,5" Magnalow system :)
    I just found they're too close to the OEM A/C air box on the right side, I had to look better for a solution...

    maybe this evening I will post some pictures.

    bye!
     
  2. 1981LT1

    1981LT1 Veteran Member Lifetime Gold Member

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    Wrong. You get the headers to fit the chassis, not the engine. And regular SBC headers will work. I have used, Hedman, Summit, and Hooker SBC headers on my LT1 and non of them have given me any problems. I am running 1 5/8" headers for my application and I am putting 360 hp at the wheels on a stock CID and stock bottom end.
     
  3. sbca96

    sbca96 Veteran Member

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    Wrong. Headers are useless if the flange blocks 25% of the port opening. If
    your header flange port hole is larger than the LT1 port, then its golden. When
    I got my '95 Impala SS, it had AS&M headers on it, FOR an LT1. Problem was
    they used square port gaskets, which blocked 25% of the port opening. The
    headers were melting just about everything in the engine compartment so I
    traded them for some stock Impala SS manifolds, and did some hand porting
    to open them up a bit. I picked up a nice seat-of-the-pants improvement. If
    you get the wrong headers, you might as well stick to stock manifolds.

    Tom
     
  4. Christian GM

    Christian GM Veteran Member

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    QUESTION:
    I have the Hedman p/n 68609, and on the passenger side they're so closest to the A/C case. about half an inch. any idea to don't burn out the case?

    thanks!
     
  5. Christian GM

    Christian GM Veteran Member

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    UP!!!

    Thanks!
     
  6. SomeGeoffGuy

    SomeGeoffGuy New Member

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    I would just put some header wrap on them locally. It looks like crap but it works well.

    -Geoff
     
  7. Christian GM

    Christian GM Veteran Member

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    yeah..
    they're ugly :(
    they need to be wrapped on both sides of the engine for "thermo balancing"?
    or I can use them only on passenger side?

    bye
     
  8. SomeGeoffGuy

    SomeGeoffGuy New Member

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    If you were just doing a a couple inches on one tube I wouldn't worry about the balance issue. I had a Grand Prix GTP where I just wrapped the crossover where it came under the throttle body. It worked like a charm.


    -Geoff
     

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