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  1. #1
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default 69' Banshee Build

    I've been debating on where to post this build and decided to put it here because I assume this is where I will have the most questions regarding the build. I know the last thing anyone will want to read about is another Twin Turbo 350 build, so sorry.

    I am starting out with my 1969 Buick Skylark Custom that was cloned to a GS. This was my first car when I turned 16, and manual drum brakes and a heavy foot resulted in a new passenger fender and original GS hood (front of car met tow truck bumper). As you can see, the car is a bit confused at the moment. It has the body holes for all the trim, but the trim is not on the car. It also has a 68 driver side fender and headlight bezel.

    I have decided to name the car the "Banshee". A twin turbo car needs to have a good name. Banshee because it is going to be painted satin black and it will scream with the twins.

    Here are a few pics of what the car started out as....
    DSC03849
    DSC03848
    DSC03856
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  2. #2
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    The car is solid and deserves to get an identity. I am planning on finishing the conversion to a GS. I also am getting rid of all the trim on the car and shave the door handles and antenna. I want it to look smooth and mean. I am going to paint the bumpers body color and what minimal chrome trim (windshield, rear glass) I am going to brush.

    First step, weld up body holes and shave handles and antenna....
    DSC_0424

    DSC_0427
    Last edited by tinker14bs; 01-01-2012 at 07:50 PM. Reason: spell check
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  3. #3
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    While the body does not have rust, it does have a lot smaller dents. I used a body hammer to knock out as much of the dents as I could and then used a body glaze and sanding block to smooth it out. Then it was primer time.


    DSC_0456

    DSC_0463

    DSC_0479

    DSC_0484

    DSC_0486

    DSC_0481
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  4. #4
    Join Date
    Sep 2004
    Location
    Michigan, USA
    Posts
    15,245

    Default Re: 69' Banshee Build

    Absolutely looking forward to progress. I really like the ideas you have going.

    Devon
    Fuel & Brake Systems Engineer
    "I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers which might be wrong." - Feynman
    "Good data is precious. The problem I have is when some damned fool fails to use it properly." - Slingerland

  5. #5
    Join Date
    Aug 2006
    Location
    Waring, Tx
    Posts
    6,562

    Default Re: 69' Banshee Build

    Nice work. Keep the pictures coming.

    And nobody ever gets tired of hearing about any Buick with a power adder.
    Mark
    72 Skylark "GSX" Convertible 462, SP 400, 4:10
    72 "GSX" 464, TH 400, 3:42 10.71@126, street tires and mufflers
    Quadrajet Power LLC
    Your one stop Quadrajet shop for parts, services and custom built Quadrajets
    mark@quadrajetpower.com

  6. #6
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,361

    Default Re: 69' Banshee Build

    Looks great!!! My wife likes the 69s better than my 70 so maybe I need a 69 as well LOL!

    E-mail me anytime if you want to bounce ideas off me...
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  7. #7
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    Teaser pics of what is to come....

    Vintage Air underdash heating and AC unit.
    DSC_0573

    BWM 5 Series halo headlights with projectors and HID.
    DSC_0574

    And of course, the thing that will give the Banshee her scream...
    DSC_0575
    DSC_0576

    Still a lot of hours needed to get all of that in her, but it will be worth it.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  8. #8
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,361

    Default Re: 69' Banshee Build

    Nice, looks like santa was good to you!!!!
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  9. #9
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    I have decided to change the paint color from satin black to a gunmetal metallic. I tried two different satin blacks. The first was too glossy and the second didn't flow smooth enough. I realized how skilled of a painter you need to be to spray satin. I am good at wet sanding and buffing and can make a gloss look like it is wet though. Hopefully in another two weeks I will have the new paint sprayed and then can start on the turbo build. I am getting antsy to rip the engine apart and start grinding away with some carbide burrs.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  10. #10
    Join Date
    Dec 2006
    Location
    British Columbia, Canada
    Posts
    642

    Default Re: 69' Banshee Build

    Suscribed........
    Looking good!!!
    Buick #455

  11. #11
    Join Date
    Oct 2005
    Location
    WA state
    Posts
    1,487

    Default Re: 69' Banshee Build

    Another build to follow and live vicariously through. Thanks
    68 Skylark

  12. #12
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,361

    Default Re: 69' Banshee Build

    Update??
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  13. #13
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    Still waiting to finish the paint. The weather was cooler and I was out of town for a bit. Hoping to finish it this weekend and then it will be time to rip into the engine.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  14. #14
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,361

    Default Re: 69' Banshee Build

    I am waiting for paint as well...
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  15. #15
    Join Date
    Apr 2006
    Posts
    1,369

    Default Re: 69' Banshee Build

    Oooh yeah, the gunmetal will be sweet! I was bummed when I read satin black. What a cool looking car. Sure you don't wanna just slap the turbos on a runner? Seems like everyone tears into the engine which just isn't needed for low boost. Git-r-done!

  16. #16
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    Mark,

    You don't think that I need to do any gasket matching or opening up of the heads at all? I just assumed I would want to open it up a little to help the extra air get moved through. I don't see myself running more than 6-8psi on this engine.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  17. #17
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,361

    Default Re: 69' Banshee Build

    Not to answer for Mark, but in my opinion there is no need to gasket match or open up the heads. Unless you are going to pay to have the heads professionally ported I would not go to the trouble of removing them. Keep in mind that any increase in the size of the port decreases the velocity of the air/fuel. We gain air flow due to density of the air under pressure...
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  18. #18
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    What about the face of the intake? I am going to use a stock 4 barrel intake with a 1 inch spacer adapter for the Quick Fuel Carb. The spacer has an open spacer and a 4 hole spacer. With the open spacer it seems like it would just be hitting the face of the intake and causing a bunch of turbulence. The 4 hole spacer tries to mate the holes of the spreadbore with square bore, but to me it seems it ends up restricting the primaries then. I was thinking about opening up the face of the intake. so i could use the open spacer. I was going to leave a center divider and extend it to the base fo the carb. Any thoughts on this anyone?
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  19. #19
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,361

    Default Re: 69' Banshee Build

    Sure, take off the intake, set your spacer on there and blend what you need to. Set our carb on the spacer and have a look, maybe the spacer needs to be slightly blended as well.

    It might be a good idea to use a TA intake if you have the money... This will work better with the square bore carb VS stock.
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  20. #20
    Join Date
    Apr 2006
    Posts
    1,369

    Default Re: 69' Banshee Build

    Yep, what Sean said. I have personally always maintained a belief that gasket matching is a waste of time. Unless the entire runner is shaped to blend with it, and it is for a high rpm only application. It KILLS low end throttle response. Port matching on the other hand can be beneficial, but does not necessarily involve removing much, if any material. If your heads have not been milled, and you're running a stock intake, just run the stock valley pan gasket and it should be fine. I would hog out the center of the intake like Sean says, and if anything toss in a mild cam upgrade while the intake is off.

  21. #21
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    I have the Poston GS114 cam with their heavy duty roller rockers, springs, and hi-rev lifters already in. I'll take the advice to just open up the intake to match the spacer. Hoping to finish up spraying the paint this weekend. Then next week I will do some assembly to get the car back together and it will be turbo time.

    Question on the fuel system. I have a single 100 micron filter that I was going to put before the fuel pump, should I also run a 30 or 40 micron filter after the pump?
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

  22. #22
    Join Date
    Apr 2006
    Posts
    1,369

    Default Re: 69' Banshee Build

    The Poston 114 is actually a great off the shelf turbo cam. It is what I run. I wouldn't bother with a post filter. Most carbs can handle SOME debris. It is the big crud you need to keep out. 100 micron will handle that.

  23. #23
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,361

    Default Re: 69' Banshee Build

    Quote Originally Posted by Justa350 View Post
    The Poston 114 is actually a great off the shelf turbo cam. It is what I run.
    I agree on the 114 cam, I am going to use the same 114 cam until I go to a roller cam down the road.
    __________________________________________________ __________________________________
    My book called Small Block Buick Performance covering the V6, 215, 300, 340, and Buick 350 engines will be released soon.

    http://www.v8buick.com/forumdisplay....rformance-Book
    __________________________________________________ ____________________________
    1970 Buick Skylark Turbo 350 street/strip

  24. #24
    Join Date
    Apr 2006
    Posts
    1,369

    Default Re: 69' Banshee Build

    Dude, you're killing me! Where's the paint pics?

  25. #25
    Join Date
    Feb 2008
    Location
    Texas
    Posts
    220

    Default Re: 69' Banshee Build

    I just finished the paint yesterday. After 3 months, 3 different paints, 3 different guns and almost a dozen attempts, I finally got it how I wanted. Here are a few pics of the hood and fenders. I didn't have a chance to get the body out in the sun today to take a pic. I will get one tomorrow as long as the rain holds off. Going to do some assembly through the week and weekend and then it will be time to get the turbos on! It's been a lot of hard work to get to this point, but a good learning experience.

    DSC_0617
    DSC_0619
    DSC_0618

    I am really happy with the way the paint turned out. The color looks amazing in the sun. The metal flake really pops in the sun and the clear makes it look deep and wet.
    - Brennan

    1969 Buick Skylark Custom
    Work in progress - 13 years and counting, but I'm getting close!
    Texas

 

 
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