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  1. G

    Dougs D452 vs D451

    I believe 451s are - 1” and 7/8. Vs 2” on the d452.
  3. G

    Dougs D452 vs D451

    Damn good point.
  4. G

    Dougs D452 vs D451

    Dammit. I found a good 451 stroker but I can’t afford another pair of dougs with 800 all in. Thanks for info.
  5. G

    Dougs D452 vs D451

    Hi all Can I bolt my D452 headers to a 400 B motor. They are coming off a 440 RB. The site calls for a D451 for a 400. Thanks. Erik.
  6. G

    Opinion needed

    Sounds like 3" is my answer. I'm thinking magnaflow for mufflers. I appreciate the info guys. I kinda felt like he was pushing back pretty hard against 3". On another note, a hot 440 with open headers sounds amazing!
  8. G

    Opinion needed

    hi I'm ready for exhaust. I have 69 coronet with a approx 500 hp 600 ft lb. 440. Doug's headers. I saw frieburgers hot rod garage about 3" vs 2.5". My exhaust guy doesn't wanna do up and over the rear axle with 3". I was thinking 2.5" from headers back with y's and block off plates. That way...
  9. G

    TTI 2 in headers 4 speed 143 tooth flywheel combo and a starter....

    My 9523 clocked away from my Doug's headers and wrapped in heat blanket works great!
  10. G

    TTI 2 in headers 4 speed 143 tooth flywheel combo and a starter....

    Look at the powermaster 9523. It's adjustable.
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