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Thread: Engine upgrade opinions please...

  1. #1
    Join Date
    Mar 2012
    Location
    fort lauderdale
    Posts
    828

    Engine upgrade opinions please...

    Somehow I just mysteriously have a blown head gasket. Now mind you, I live in Florida, shut the car off a month ago, everything fine. Start it today, water in the oil. So I figured if I have to dig into the engine, I might as well pump it up. Any suggestions on getting a couple hundred more hp? I'd like to do it as affordably as possible. I have a aluminum manifold on it already.. I'm sure a cam alone won't do it. What tricks and combinations can you suggest? Thanks Steven

  2. #2
    Join Date
    Apr 2007
    Location
    Fraser Mi
    Posts
    304
    NOS=100 HP or 200 HP, cheapest and easyist

  3. #3
    Join Date
    Mar 2012
    Location
    fort lauderdale
    Posts
    828
    NOS is for children and amateurs.

  4. #4
    Join Date
    May 2017
    Posts
    9
    Yea, childrens and amateurs blasting past you from left and right..

    Well, all the info is on various Oldsmobile forums. Many, many builds with dynographs added so you can just copypaste one which suits your wallet.
    Im starting to build new motor from ground up currently, and i can assure you its not cheap.
    2500$ just for short-block. For the rest only sky is limit, deciding question is how much can you spend?

  5. #5
    Join Date
    Mar 2009
    Location
    Calgary AB Canada
    Posts
    1,050
    200 hp over stock will cost you $10k and then you will need other upgrades to handle the extra power and keep the drive
    Line balanced ( for example gears and a converter and fuel system and exhaust upgrades).

    100 hp over stock means better intake, pistons, head work, a well matched cam and carb upgrades on top of the usual rebuild costs. It might need a converter and gears and headers.

    Good luck.
    Last edited by oldsmobiledave; 11-12-2017 at 01:34 PM.
    1965 442 461 cid BBO Richmond 5 speed frame off
    1970 Cutlass W-31 green automatic 14.47 @ 99.7
    1972 442 W-30 4 speed Radiant Green 3.73s
    1972 442 524 cid BBO 10.89 @ 122.5 @ 3800'
    1973 442 350 Automatic Black on white
    1987 442 470 cid SBO 11.37 @ 119.4 @ 3800'
    1980 GMC 468 cid BBO 14.70 @ 93.0 @ 6000'

    Numerous 1973s owned.....searching for a V code!
    Eighty-one Oldsmobiles owned since 1989

  6. #6
    Join Date
    Jan 2011
    Location
    Southern Ontario
    Posts
    146
    I agree with Dave, I'm pulling my 1975 stock 350 motor in 2 weeks to do something similar, to gain hopefully 70 Hp. #5 heads redone, cam, Edelbrock intake, Thornton exhaust manifolds, dual exhaust, new timing chain, (new pistons & rings possibly) bolted to a soon to be rebuilt 200R4 with a new torque converter with my existing 3:42 gears..
    I got some good info from Doug Blake on this site. I had the carb rebuilt a year ago, It made a big difference.

    Let me know what you decide to do. I would be interested. It all comes down to money.
    Good Luck

    Jeff
    Jeff

    75 Cutlass Supreme
    77 Cutlass Parts Car


    http://v8cars.hu/73-77cutlassregistr...=4d3a4436c2fc9

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