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Thread: 1968 Buick Rivera

  1. #1

    Default 1968 Buick Rivera

    Hello i am rebuilding a 68 Rivera. My question is does anyone know where i can locate a 351w? The engine in it now is toasted. Thanks for any information

  2. #2
    P31 Pursuit Car Brown_Muscle's Avatar
    Join Date
    Jan 2008
    New Jersey


    I would try facebook marketplace or craigslist. If you aren't looking for a roller 351w then they are all over the place

    +1982 Ford LTD-S Police Car. 351w, GT40 Heads, Edelbrock 1906 Carb, Full exhaust headers to tails. 3.27 Trac-Lok Rear. Aluminum Police Driveshaft. Speedway Springs+Bilstein Shocks, Intermediate Brakes, Baumann Shift kit.

  3. #3
    I post a lot...
    Join Date
    Apr 2010
    Southern NJ


    Why are you putting a 351W in a 68 Buick?

  4. #4
    Wagon Addicted Tiggie's Avatar
    Join Date
    Mar 2006
    Bedford, VA


    82-97 Trucks and Vans are pretty typical donors. A lot of the 3/4 ton are equipped with the Windsor’s.

    You’ll need a trans too to put this in a Buick.
    1990 Country Squire - weekend cruiser, next project
    1988 Crown Vic LTD Wagon - waiting in the wings

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  5. #5
    Join Date
    Oct 2008
    St. Louis, MO


    Wouldn't it be easier/cheaper to find another 430 to slip in than to redesign the entire drivetrain for the Riv?
    These are highly engineered precision vehicles, the first step in diagnosing the problem is to strike the suspected offending part sharply and repeatedly with a blunt object, then re-test.

  6. #6


    Yes but a friend suggested a 351 but i like your idea thanks

  7. #7


    A friend suggested it he said it wotl be cool

  8. #8
    fomoco panthers !
    Join Date
    May 2011


    + 1 with Derek on that ! Keep it GM.

  9. #9
    Domestic Tourist Lincolnmania's Avatar
    Join Date
    Sep 2004
    Birdsboro PA.


    wait a minute. years ago there was someone who came here with a buick that someone swapped in a 351w. maybe the seller of the car told that person about gmn.
    Last edited by Lincolnmania; 01-04-2021 at 08:08 PM.

    1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
    2006 Lincoln Town Car Signature. Stock for now
    1989 Ford F-250 4x4 much much more to come, sefi converted so far.
    1986 Toyota pickup with LSC wheels and 225/60/16 tires.
    2008 Hyundai Elantra future Revcon toad
    1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

    please be patient, rebuilding an empire!

  10. #10
    Beater gonna beat sly's Avatar
    Join Date
    Mar 2010
    Lewisville, TX


    It is definitely easier to go back with stock engine. No adapters/fabrication needed. You could probably do an LS swap in that as there's probably aftermarket adapters and mounts ready and waiting for purchase. If the old engine isn't completely wrecked, a rebuild might actually be the cheapest option unless you find a known good, used engine. Some general wisdom is that no used engine is good until you tear it down and make sure it is actually good. And while you're in there, replace all gaskets so it won't leak. Obviously, stock for stock is a sure recipe for proper repair, but newer power plant may be a good option if you or someone you know is willing to fabricate a few things to make it fit.

    Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
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