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Thread: Having a 300 V8 rebuilt - advice, opinions?

  1. #11
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    Thumbs up Congrats on your "kitten"!

    Hi Butch (aka WildKitty)!

    Glad to hear that your 300 has come back to life!

    Quote Originally Posted by WildKitty View Post


    got the "little" 300 fired up the other day - I had been not seeing a prong on the connection on the capacitor touching the outter plate of the points. the points that came out of it had the capacitor attached... damn those points were hard to get to.
    Groan . . . . you bring back bad memories of tuning the car da'hard way! Around 1980, I just couldn't put up with the skinned knuckles and the rest every 3000 miles and put in an electronic ignition. When I started on the restoration repairs last March I had the shop put in one of those newer electronic ignition units that fit entirely under the distributor cap. Yeah I know, definitely not authentic, but the goal has always been for our Buick wagon to be a daily driver, so the frequent tuning sessions really had become a drag. Besides, I like the skin on my fingers - where it is!

    Quote Originally Posted by WildKitty View Post
    I musta got the carb exactly right - and the dist pointed in the right direction, one hit on the start button and she took off and purrs like a kitten, well, sorta large kitten.
    Definitely sounds like you are in good shape! The engine cannot sound good unless the running parts are indeed running smoothly and in sync!

    Quote Originally Posted by WildKitty View Post
    sitting onna trailer in the garage is a tad noisy.

    will rpelace the cracked cast exhaust manifolds with a set of headers. they came black so I will hit them with some high temp silver before I put them on.

    Butch
    Sounds like your La LeSabre is going to look as nice at it sounds when you have all put back together!

    Great Job!

    Keep up the good work!

    Edouard

  2. #12
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    300 ci

    In the March 2011 issue of Hot Rod magazine there is an 8 page story on hot rodding odd ball engines. The author used the 300 CI Buick V-8 as an example. He shows how to get 390 HP! Nothing real fancy.

  3. #13
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    Thanks, I'll get a copy!

    Dear suntreemcanic,

    Quote Originally Posted by suntreemcanic View Post
    In the March 2011 issue of Hot Rod magazine there is an 8 page story on hot rodding odd ball engines. The author used the 300 CI Buick V-8 as an example. He shows how to get 390 HP! Nothing real fancy.
    Thanks for sharing that with me and the Team Buick "brotherhood." I'm certainly a softy for that engine so I'll hunt down a copy of the March issue!

    Cheers, Edouard
    Caretaker of a 1965 Buick Special "billy goat"!

  4. #14
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    darn, darn darn,...

    300 sounds so good, starts instantly, water choke functions perfectly, 21/22in vacuum- steady as a rock... BUT.. really low oil pressure;
    9-10lbs @ idle, 15-18lbs @ 2,000 rpms.

    I "thought" I had a very capable mechanic rebuild the oil pump. he
    did everything by the book (I think); packing it with vasoline before
    closing it up.

    I had low oil pressure when I first fired it up, but I wanted to install
    the headers before doing a 20-30 min run. we did that today; got the
    timing right; which was only a hair off, checked for leaks, let it heat up to
    190, then turned on the electric fan (will have a thermo switch later),
    it steadied off at about 180.

    even bled to new oil pressure guage getting a trickle, not a "squirt".

    mechanic today said I should try a performance oil filter.

    I put in 5/30 synthetic oil.

    any ideas before I tear into the oil pump again?
    thanks
    Butch

  5. #15
    I woud try 10w30 oil. As long as you have 30 psi at 2000 rpms, and 50 psi at 4000 rpms you should be fine.
    Sean G
    70 Skylark-Twin turbo 350 powered
    75 Regal-350
    76 Century-350
    78 Skyhawk-V6
    and 18 spare Buick 350s in the barn.

  6. #16
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    [quote=WildKitty;77353]

    well, sorta large kitten.

    I can confirm...last week i started my 300:a large mad kitten!!yyyyhaaaaa!!

  7. #17
    Quote Originally Posted by suntreemcanic View Post
    In the March 2011 issue of Hot Rod magazine there is an 8 page story on hot rodding odd ball engines. The author used the 300 CI Buick V-8 as an example. He shows how to get 390 HP! Nothing real fancy.
    nothin fancy unless you count the 100 hours of porting work that would cost the average guy about 5 grand at a conservative labor rate of 50.00 per hour.
    Bob Gibbs

  8. #18
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    Quote Originally Posted by Bob Gibbs View Post
    nothin fancy unless you count the 100 hours of porting work that would cost the average guy about 5 grand at a conservative labor rate of 50.00 per hour.
    I wonder how well that 349 would run without the extensive head work?
    The porting would be most beneficial at high rpms.
    Peak hp was 370 at 5900 rpm, but it still made over 300 hp at 4400 rpm.
    Walt
    65-66 GS's

  9. #19
    Quote Originally Posted by wkillgs View Post
    I wonder how well that 349 would run without the extensive head work?
    The porting would be most beneficial at high rpms.
    Peak hp was 370 at 5900 rpm, but it still made over 300 hp at 4400 rpm.
    Walt,
    i'd suspect it wouldnt be much different than a stock 340 with a cam. ported heads also help the cylinders fill at low RPM and would have an effect on hp and torque at lower rpms. dont forget that they used a stock intake and theres only so much you can open one up so i'd bet the port velocity was still pretty high. high port velocity means high torque
    Bob Gibbs

  10. #20
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    running 30lbs oil pressure attabout 1,000 rpms.
    I put the original oil pressure release valve spring back in.
    there was at least 1/2" difference (the original spring was
    longer).

    Nuther Q?: should I leave all the spark plug wires the same length?
    or can they be cut to make a better looking wire loom? - they are 8MM.

    I'm going to try to run all the wiring outta sight (well, almost); run the harness through the center consol (which will be front to rear). - lots of
    room for the a/c hoses also.

    did got with 10/30 syn oil

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