1970 Pro-Touring Lark

Discussion in 'Pro-Touring' started by BuickBullet, Feb 16, 2014.

  1. BuickBullet

    BuickBullet Member

    I haven't worked on the car, been bogged down with school and sports. I just was driving and enjoying the car for the summer and fall and wanted to post some pictures. Hoping to bring it back out when the rain goes away for my last year of highschool.

    I also wanted to see if anybody had considered doing any smoothing of the license plate recess on the front bumper. I want to do some small body work to make my car visually unique, I want to keep the element of a sleeper, but want some small hints to the observant eyes. Currently the only hints really towards anything is the front spoiler, stance, and the 17 x 11.5 Rears. I was thinking of an on/off switch, but I drive in a highschool parking lot and don't like the idea of kids with that. Any pro touring style suggestions?? I want to bounce around some ideas. The car will likely sit for my college years, and then I plan to go back and build the car that I really want to build either during summers or after school.

    Thanks!
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  2. rkammer

    rkammer '71 GS455 Arctic White

    You mentioned in one of your posts that the car stopped pulling at about 4000 RPM. I doubt, since the motor has been rebuilt, that your valve springs are the culprit but, I have another thought. You installed an MSD HEI distributor which probably has a rev limiter built into it which is adjustable. Is it possible you have the limiter set to cut the ignition off at 4000 RPM? Just a thought.
     
  3. BuickBullet

    BuickBullet Member

    We have found that the previous builder didn't always use new parts or do a complete job, and therefore it would not surprise us if it were the original valve springs which would likely need to be replaced.

    The MSD HEI Distributor does have an adjustable rev limiter, but it was set at 5500 RPM, but in gear the engine will struggle to even spin that high. I appreciate the tip, but that was something we had already looked into.

    The car also has developed a strong electrical charge/current drain, where after sitting for a while the Car will need to be charged till it can start. I believe it might have originated from the cars Clifford Security system, which I removed most of it from (I was hesitant to remove all of it because some was attached as a kill switch to engine). Is there any other areas which we could receive a strong electrical drain?

    Additionally I am debating on whether or not to rebuild a Turbo 400 core that we have...

    Thank You
    Tom
     
  4. rkammer

    rkammer '71 GS455 Arctic White

    I had an old Clifford alarm on my Buick Turbo T. The only drain it should experience is a little for the circuitry in the main box and a little for the LED light that flashes when the alarm is set. It should be very low current. My Buick would sit for a month or more on occasion and it would still start without a charge. And, that included a small drain on the battery from the car's computer.
     
  5. BuickBullet

    BuickBullet Member

    Rkammer: You're right, it probably isn't the alarm. But I am just not really sure what it could be at this point. Thank you for the expertise. Did you ever have any problems with the alarm randomly being triggered?

    Also as an update, I put a post into the Street/Strip 400-430-455 section regarding a potential engine rebuild. Link:

    http://www.v8buick.com/showthread.p...tion-for-Engine-Rebuild&p=2549058#post2549058

    "Hey Guys,

    I am looking at rebuilding a new 455 and turbo 400 over break using some spare parts that we have. I am not satisfied with the current drivetrain, as the engine seems to have some problems as it won't pull past 4,000 RPMs and not sure how well the previous person built it and the transmission shifts are quite soft. In conversing with my Dad we are considered pulling the running drive train and keeping it aside as "Back up" and then building a more satisfying combination.

    This here is the "Build Thread on the car"

    http://www.v8buick.com/showthread.php?279311-1970-Pro-Touring-Lark

    We would be building a new 455 with some parts that we already have in order to keep costs down. We are planning on keeping a stock bottom end, but boring it to 0.030" and putting in some pistons that my dad has which would lead us to a 10.2:1 compression ratio. The heads will be mildly ported stock iron heads with stage one valves and springs, and the rockers and pushrods are being planned to stay stock spec. The intake would be a Edelbrock Performer RPM intake (I think) and the exhaust is cast iron manifolds (although I am looking into T/A Shorty headers).

    For the turbo 400 we would rebuild a short shaft turbo 400 and use a race shift kit. Just a question based in my own curiosity, does anyone know of a manual pattern shift for automatics? I have been driving a 5-speed while the Buick sits in the garage, and I think I enjoy the shift pattern more than just the ratcheting shifter.

    The car spends a majority of the time on the street, and uses power brakes and power steering, but will likely see autocross and strip time. I would prefer it to have a lopey sound, and obviously out perform the stock cam. The car has 4:11 gears."

    Thanks For Your Time Guys,
    -Tom
     
  6. rkammer

    rkammer '71 GS455 Arctic White

    In the over 20 years that alarm was on the car I can't ever recall it going off randomly. The only time I recall it going off was if the battery was disconnected in order to work on the car and then, when it was reconnected again, the alarm would trigger. You then, had to turn it off with the key fob. But, no random triggers otherwise.
     
  7. BuickBullet

    BuickBullet Member

    Well... 4 Years Later and I'm back!

    Trying to guess my 15-year-old created password was a bitch, but after being locked out a couple of times guessed it right. As I'm starting to finish up college and having the car sit for a couple of years, I've started to reignite my interest in the car. Of course, the car has been sitting in the garage for a while and it's about time to start wiping the dust off and figuring out where everything lies. The goal is to get the car to be something that I can drive 3x a week and on any whim I choose.

    As an additional update, I was gifted billet aluminum 17" Buick-style rims, and put a 245 tire upfront, with 315s outback.

    What that means... (another todo list that might never get done):

    1. Fix the electrical problems.
    -We are still getting an unexplained battery drain. I took out the Clifford alarm and still was having issues. Thinking about buying a painless wiring harness and just starting from scratch and redoing all of the wirings.

    2. Fix the heater/defrost behind the dash.
    -The controller on this was broken, can't really remember how, but in Seattle weather defrost is always pretty essential if this is going to be a car that can get caught in the rain.

    3. Rebuild the engine
    -I am looking at rebuilding a new 455 and turbo 400 over break using some spare parts that we have. Thes engine seems to have some problems as it won't pull past 4,000 RPMs.
    planning on grabbing a new block, boring it to 0.030" and putting in some pistons that my dad has which would lead us to a 10.2:1 compression ratio. The heads will be mildly ported stock iron heads with stage one valves and springs, and the rockers and pushrods are being planned to stay stock spec.
    Actually was able to get wildcat 455 headers on craigslist (with the helpful eye of dad), and plan on installing those with minor modification. We will have to get them coated as well.

    4. Bucket seat conversion
    I took advantage of the Black Friday offerings for Jegs.com and picked up some new seats: https://www.jegs.com/i/JEGS/555/70245/10002/-1

    5. Update transmission
    Heres the real kicker. Still using those 4.11 gears, I was really hoping to get overdrive. Thinking an SST Transmission kit: https://shiftsst.com/?gclid=Cj0KCQi...wii9XV624xwVEFW8XLHtmEq6uFWU4CpIaApxZEALw_wcB
    but having a hard time justifying dropping that much money.

    The goal is to make some headway on all of these steps and finish up by September 2020, as that's when I'll start full-time employment.

    Hope to hear your guy's thoughts and excited to rejoin the community!
     
    sriley531 likes this.
  8. sriley531

    sriley531 Getting Carried Away....

    Welcome back and glad to hear you're restarting the project! I'm curious to see some of your feedback regarding those seats. I'll be starting an autocross build in the foreseeable future and those look like they may fit the bill for me as well.
     
  9. gs66

    gs66 Well-Known Member

    Nice looking car!
     
  10. BuickBullet

    BuickBullet Member

    They're arriving back at home this week (I'm currently at school) so hopefully I'll be able to check them out in a week or two and let you know.

    Thank you!
     

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