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  1. #1
    Join Date
    Feb 2009
    Location
    Modesto CA
    Posts
    53

    Default How you built your 350, what worked, what didn't...

    I've been holding off pulling the 350 from the 69 till I could read Sean's book. Also been reading a book by Jefferson Bryant on Buick motors, mostly focusing on oil mods. The motor I want to build is for endurance and longevity, not rock climbing but freeway cruising and running around town. I want to know what you guys have done to build your motors to last. Having read what I could I seem to have done everything possible to torpedo my Dauntless, so second time around I want to know what works. Thanks!
    1969 Jeep Wagoneer 350/TH400


  2. #2
    Join Date
    Feb 2002
    Location
    Garfield Hts, Ohio
    Posts
    4,776

    Default Re: How you built your 350, what worked, what didn't...

    My 350 is in my '71 GS, heres what I've learned over the years (30) that I've owned it:
    I have the Jefferson Bryant book, DONT GO BY ANYTHING IN THAT BOOK! Its a nice read with color pics, but a TON of mis-information!
    Main bearings, .002
    Rods .002
    Re-size big end of rods to "round again"
    Make sure timing cover is in good shape, oil pump cavity is most important, no scores, gouges, and make sure the pump gears protrude above pump cavity, if they don't, cavity is worn, get a new cover from TA Performance.
    If pump cavity is good, use shim kit from TA Performance to achieve .002 end clearance.
    Use TA's back grooved cam bearings.
    Use seals on exhaust guides, Buick didn't use them. The guides will have to be cut.
    Get a good valve job
    Bore over (.020 .030)
    71 GS 350 (mine) Best so far 13.65 @ 98.84 mph
    SP3 track testing to resume in 2016!
    413 cam going away, switching to TA roller, starting again with Stage 1 and Q-Jet, then to SP3 and AED
    87 Grand National (Hers) no passes yet
    00 Monte Carlo
    2001 GMC Safari AWD
    2007 Mazda 3
    Ranch house with 4 dogs and a cat

  3. #3
    Join Date
    Feb 2009
    Location
    Modesto CA
    Posts
    53

    Default Re: How you built your 350, what worked, what didn't...

    Thanks for your reply. The TA cam bearings are on my to-do list, have a new timing cover and booster plate, considering the oil passage drilling and larger diameter oil pickup. Both of my blocks are bored over 0.040, is this too much? Still looking for the definitive book on building Buick motors. Any idea when Sean's book is available?
    1969 Jeep Wagoneer 350/TH400


  4. #4
    Join Date
    Feb 2002
    Location
    Garfield Hts, Ohio
    Posts
    4,776

    Default Re: How you built your 350, what worked, what didn't...

    Seans book wont be available for awhile as far as I know.
    Best thing to do is ask any questions on here that you have as they come to mind during your build
    This board is full of people that have real life experience with Buick engines, people that build 'em, and run/race 'em!
    71 GS 350 (mine) Best so far 13.65 @ 98.84 mph
    SP3 track testing to resume in 2016!
    413 cam going away, switching to TA roller, starting again with Stage 1 and Q-Jet, then to SP3 and AED
    87 Grand National (Hers) no passes yet
    00 Monte Carlo
    2001 GMC Safari AWD
    2007 Mazda 3
    Ranch house with 4 dogs and a cat

  5. #5
    Join Date
    Sep 2012
    Location
    MI.
    Posts
    2,868

    Default Re: How you built your 350, what worked, what didn't...

    Quote Originally Posted by lkmarsh View Post
    Thanks for your reply. The TA cam bearings are on my to-do list, have a new timing cover and booster plate, considering the oil passage drilling and larger diameter oil pickup. Both of my blocks are bored over 0.040, is this too much? Still looking for the definitive book on building Buick motors. Any idea when Sean's book is available?
    A .040" overbore is nothing for a sbb 350 block, only going that much over you don't need to bother having the block sonic tested. I have sonic tested a couple of sbb 350s and one of them was thick enough to bore .200" over to take it from a 3.800" bore to a 4.00" bore! The other one was thick enough to go at least .100" over.

    Sean won't have his book done until TA sells sbb 350 aluminum heads, so when that happens that would be a good time to ask him. He actually has his own MB in the vendors section here on v8 Buick. While you wait this site is better than any book for rebuilding knowledge, you just have to ask. GL






    Derek
    64 Skylark,401 Nailhead,ST400,3.23:1Posi
    64 Skylark,305Vortec sbc,700R4,12blt Posi 3.73,low 14s. A sbb 300 stroker planned for it.
    72 Skylark Convert. in progress, Not yet assembled 455 .020 over,70 heads with stage1 valves,gasket matched and bowl blended,transmission to be determined.
    65 Chevy Impala,4,400lbs,383sbc,700R4,3.07posi,1.80 60' foot time low 13s @101mph,15mpg city,24mpg highway

  6. #6
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    15,234

    Default Re: How you built your 350, what worked, what didn't...

    Yes sorry for the delay on the book I need the alum heads in hand then ported and dynod before I can put the book to print.
    __________________________________________________ __________________________________
    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
    Jul 2015
    Location
    Cocoa Fl.
    Posts
    219

    Default Re: How you built your 350, what worked, what didn't...

    Is the consensus on booster plates that they are ok or are they like the tall gear HV oil pumps, bad for the distributor/cam gear?
    Craig Likon
    1967 Turquoise GS400 ST400 Sport Coupe
    Cocoa Fl.

  8. #8
    Join Date
    Feb 2002
    Location
    Garfield Hts, Ohio
    Posts
    4,776

    Default Re: How you built your 350, what worked, what didn't...

    Quote Originally Posted by ctlikon View Post
    Is the consensus on booster plates that they are ok or are they like the tall gear HV oil pumps, bad for the distributor/cam gear?
    The booster plate is all good.
    Instead of your pump gears riding on the aluminum pump cover, they ride on a machined iron/steel plate. Well the gears really shouldn't ride on anything, there should be a film of oil in between, BUT with the booster plate in there, the steel/iron expands less than the aluminum would, thereby keeping the tolerances MUCH tighter, AND maintaining oil pressure much much better.
    They're pretty much a standard upgrade to the Buick oil pump
    71 GS 350 (mine) Best so far 13.65 @ 98.84 mph
    SP3 track testing to resume in 2016!
    413 cam going away, switching to TA roller, starting again with Stage 1 and Q-Jet, then to SP3 and AED
    87 Grand National (Hers) no passes yet
    00 Monte Carlo
    2001 GMC Safari AWD
    2007 Mazda 3
    Ranch house with 4 dogs and a cat

  9. #9
    Join Date
    Jul 2015
    Location
    Cocoa Fl.
    Posts
    219

    Default Re: How you built your 350, what worked, what didn't...

    Thanks Mark. I have seen some that appeared to be anodized aluminum. I guess the anodize provides a tougher wear surface too. Good stuff.
    Craig Likon
    1967 Turquoise GS400 ST400 Sport Coupe
    Cocoa Fl.

  10. #10
    Join Date
    Mar 2003
    Location
    Highland, Indiana, USA
    Posts
    844

    Default Re: How you built your 350, what worked, what didn't...

    I had to rebuild mine back in 92 because I'd bent the crank and three rods, but the machinist said the crank, bores, and deck were all square. He said I could have gotten a new crank and rods, re-ringed the pistons, and put it back together. Lesson: Find out what the machinist has to say before you buy anything.

    Zero deck '72 block bored .030
    10.25:1 Hypereutectic Pistons
    '75 crank and rods
    Poston GS114 (.480/.495) Camshaft
    Melling HV oil pump kit
    Comp Cams rockers and chromoly shafts
    TA Stage 1 (first gen) 350 Intake
    Q-Jet Carbeurator with 1" open spacer
    MSD 6AL
    Accell HEI Super Coil
    Taylor 8MM wires
    AC plugs
    Hooker Super Competition Headers
    Project: Warbird - Zero deck '72 block bored .030, 10.25:1 Hyper slugs, '75 crank and rods, Poston GS114 (.480/.495), Comp Cams rockers and shafts, TA Stage 1 350 Intake, Q-Jet, 1" open spacer, Holley Blue pump and regulator, MSD 6AL, Accell HEI Super Coil, Taylor wires, AC plugs Melling HV oil pump, Hooker Super Competition Headers, Supertrapp 5A Stainless suppressors. B&M kitted TH350, 2800 TCI converter, 8.5 w/lockright locker and 3.42 gears.

 

 

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