Patrick's Twin Turbo 350 Build Thread

Discussion in 'Small Block Tech' started by patwhac, Apr 8, 2019.

  1. sean Buick 76

    sean Buick 76 Buick Nut

    Good job
     
    patwhac likes this.
  2. Mark Demko

    Mark Demko Well-Known Member

    He may have, get in contact with Sean.
    Im not saying those turbo headers wont work, it just doesn't seem engineered properly, when #2 exhaust valve open to expel the gasses, its going to fight cylinders #4/6/8 and loose I would think.
     
  3. Mark Demko

    Mark Demko Well-Known Member

    Sean you have pics of your passenger side header you can post?
     
  4. sean Buick 76

    sean Buick 76 Buick Nut

    Drivers header here, passenger is similar
     

    Attached Files:

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  5. sean Buick 76

    sean Buick 76 Buick Nut

    My white car used the exact same manifolds as Patrick has and it was 460 hp to the tires on low boost and went 160 mph easily. I don’t think it will be an issue.
     
    patwhac likes this.
  6. Fox's Den

    Fox's Den 355Xrs

    I can't say anything
     
    Mart likes this.
  7. patwhac

    patwhac Well-Known Member

    This is somewhat concerning! PM me?
     
  8. Buick#455

    Buick#455 Well-Known Member

    Guy...... This is very odd for you not to say anything....... Come on spill the beans buddy! We are all friends here learning from each other’s small block wisdom
     
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  9. patwhac

    patwhac Well-Known Member

    Well it's been a while since I've updated the thread! Right now I'm waiting to verify that my chipped camshaft is still good to run. If that is fine, then all I have to do is bring the engine to firing position, install the valve train, intake/carb and the assembly is basically done. Some small items left I'm sure, then it will be getting the run stand completed.

    I finally painted the engine the other day, and I think it turned out great! I used Bill Hirsch Engine Enamel as I've had good luck with it in the past and I love the Buick red color:

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    Thanks to Steve Reynolds for the kick-ass oil pan!!

    Also painted a pair of stock exhaust manifolds with VHT header paint. Baked them in the oven today, probably killed a lot of brain cells but the instructions say to do this for max chemical resistance:

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  10. Steve Reynolds

    Steve Reynolds SRE Inc

    The engine looks great!! Best of luck in the "corners"! LOL
     
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  11. sean Buick 76

    sean Buick 76 Buick Nut

    It looks great! Those are the best looking valve covers I think. Are you planning to run it NA then switch to the turbos? Like I said the turbo manifolds will be fine, 600 crank hp was proven with the same ones you have. It cruised at 160 mph no problem...
     
  12. patwhac

    patwhac Well-Known Member

    Precisely my plan! I'm going to drive the car NA -> Upgrade brakes/replace steering -> Install EFI -> Install turbos -> Install 4 speed -> Upgrade suspension -> Hit the track! (road course)

    At least that's the general idea in my head haha. I'm only shooting for 450HP or so to the wheels, want keep it conservative since this is a stock rotating assembly.
     
  13. Mark Demko

    Mark Demko Well-Known Member

    Engine looks sweet Patrick!
    I especially like the SRE oil pan, what are the two fittings off the front of the pan for?
     
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  14. patwhac

    patwhac Well-Known Member

    Thanks guys!

    Those are -12AN male fittings for the twin turbo drains lines, when I eventually get there. Steve was cool enough to add them in for me as well as an oil temp bung on the side!
     
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  15. Mark Demko

    Mark Demko Well-Known Member

    Ahhhh, good idea!
     
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  16. patwhac

    patwhac Well-Known Member

    I finally got the valvetrain installed, but for some reason this looks wrong to me . . . I know that when they're not full of oil hydraulic lifters will compress all the way. Does this look ok? Also the preload on the lifters which are on the base circle looks like a lot, even after all my measuring.

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  17. Redmanf1

    Redmanf1 Gold Level Contributor

    Did you pre soak the lifters in oil?
     
  18. patwhac

    patwhac Well-Known Member

    I didn't, Comp Cam Instructions says:

    "It is not necessary to “pre-pump” hydraulic lifters full of engine oil prior to installation and valve adjustment. It is actually undesirable to do so as the “pumped up” lifters will cause the valves to open during the adjustment process, rather than positioning the lifter plunger in its operating position as it is supposed to do. “Pre-soaking” hydraulic lifters in a bath of engine oil is a good idea, but not mandatory. Doing so ensures that the lifters are adequately lubricated on their outer surfaces prior to installation. It may also result in a quieter engine start up as the oil in the bath may displace some air from the lifter’s plunger reservoir."

    I didn't "pre-soak" them either, just used cam lube on the faces and regular assembly lube on the lifter body . . .
     
  19. Mart

    Mart Gold level member

    They look "really loaded" to me.
     
  20. patwhac

    patwhac Well-Known Member

    Did I do something wrong?
     

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