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  1. #1
    Join Date
    Mar 2004
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    Edmonton Alberta
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    Default Matt Lesoine's (Big Matt on V8 Buick) 300 build

    This is a sample from the 300 build info that will be in the book:

    Matt Lesoine's 1966 Buick 300 V8 Rebuild, (300 deck height =9.45") Mains/Rods .010"under; 300 bores .070" over

    [265 Chevy bore is 3.75" (same as Buick 300) +0.070" = 3.82"]

    Venolia forged flat top pistons for a 265 SBC, .070 over with very small custom valve reliefs, floating wrist pins with spiro-locks, set .010" down in cylinder



    Early 6” Chevy rods milled to Buick width with relocated bearing tang, roller pilot bearing. All machine work done by Hansen Racing, 134 Wood Ave, Middlesex NJ, (732)748-9770.


    Bottom end: Blockbored .070 over, Buick 300 crank turned .010/.010; Deck the block, make sureblock is square, new freeze plugs, de-burr lifter valley, etc. Scat early SBC 6.0" forged connecting rods, machined to fit the Buick crank, ARP main bolts, Clevite bearings andHastings rings, Enlarge oil galley to 1/2" and use the 1/2" pick upfrom 3.8V6; maybe add deeper sump to oil pan and crank scraper/windage tray.


    Cam/Valvetrain: I changed my cam and valvetrain decision over to the custom COMP hydraulic cam that Dave Nelson used in the Hot Rod 349 stroker. He also supplied the stud mounted conversion set up (similar to Mark Burton's for the 350s) and COMP Ultra Pro roller rockers.


    Heads: fully ported (Gessler Level 3) aluminum, biggest valves possible with multi angle valve job, back cut valves, springs to match cam, guides machined for clearance, blocked exhaust cross-overs, polished combustion chambers, etc. Want to use the .020 steel shim head gaskets and ARPstuds.

    Air/Fuel Delivery: Aluminum intake manifold port matched to heads with custom grinding/welding convert it to a singleplane ,GS350 fuel pump with 3/8 line from pump to carb, -8AN line from tank to pump, Edelbrock Performer series carb, 500, 600, 750, 800 cfm (will have to seewhat works the best), adjust/change metering rods as needed

    Ignition: stock distributor with adjustable vacuum advance, tuned mechanical advance (powertimed), Pertronix points eliminator kit, MSD 6AL or similar to light it. Have to see what plugs to use
    Exhaust: Set of full length headers (old Poston's headers, equal length 1-5/8" primary diameter,3" collector) with 12" long collector extensions and 2.5"mandrel bent exhaust with "X" pipe.

    Vehicle: 1965 BuickSkylark hardtop w/bench seat
    Transmission: Borg-Warner T10 4 speed with RAM "Muscle Car" series10.5" clutch
    Rear End: GM8.5" 10 bolt 3.42:1 gears with positraction differential
    Compression ratio will be HIGH (12:1 calculated) so racefuel/AV GAS is required.
    Having compared the 300 aluminum and cast iron heads side by side; there is a difference in port sizes, but it's not as bad as everyone else on the board will tell you. The real big issue is the small valve sizes on the aluminum heads, the cast iron head valve sizes aren't much better but they are bigger. I am using the aluminum ones due to the high compression ratio. However the cast iron set I have was (street level 3) ported by Gessler, and they flow196/134 @.600" lift, 28" H2O; so I figure that the aluminum set fully race ported should be close or even better. Or if needed, I could use the new TA Performance aluminum rover heads.


    PAW timing chain set: PAW501

    PAW timing lifters: PAW 846
    Crower Cam (summit): (CRO-50234)
    Engine rebuild set – bearings/gaskets
    Clevite Main Bearings: MS961P10
    Clevite Rod Bearings: CB610P
    Clevite Cam Bearings: SH1360S
    Fel-Pro Gasket Set: FS8172PT-2
    6.0" rods/ARP rod bolts (summit)(SCA-2600020)
    Custom Venolia forged pistons 265 chevy .070" over
    Hastings Piston Rings
    Oiling modifications: enlarge main block galley
    Gessler Head porting (also valve springs suitable for cam)
    Helicoil aluminum head threads (intake, exhaust, accessory mounts)
    T&D roller rockers
    1964 aluminum intake modified to approach single plane
    Oil pump: (Melling #K201)
    Oil Pick-up 1/2"(Melling #20-IS2)
    Fuel Pump 1970 GS 350(Bosch #68511)
    Water Pump 1970 GS 350(Cardone #5511152)
    ARP main bolts ,ARP head studs (215 Buick/Rover?)
    Front cover w/neoprene seal
    Engine balanced
    Headers (w/Techline coating by TriShield Performance)
    Carburetor (Edelbrock500, 600, 650, 750, 800) Will try them all
    Summit Ignition Box (SUM-850610)
    Points Cap/HEI posts (summit);(MSD-84333)
    Dist. Advance kit (summit)(CRN-99601-1)
    GM Points Rotor (rockauto.com)
    Plug wires (summit) (P808215}
    Coil (summit)(MSD-8222)
    Pertronix Ignitor (summit) (PNX-1181)
    Spark Plugs (summit)(ACF-R45S)
    Spark Plugs (summit)(ACF-R43S)
    180* T-stat(SUM-360180)$7.15
    The following are part numbers for equivalent items from TAPerformance:
    Double roller timing chain set: TA1521B (3 key)
    Double roller timing chain set: TA1523 (9 key billet)
    1969 and earlier valve lifters:TA1406
    Engine gasket set:TA1705-300
    Main Bearings:TA1549
    Rod Bearings:TA1540
    Piston Rings:TA1634
    In addition, the 1969 and earlier lifters and steel shimhead gaskets are available from:
    Gessler Head Porting
    25 Four Corners Road Blairstown, NJ 07825 (908)362-7692
    Last edited by sean Buick 76; 01-14-2013 at 09:58 AM.
    __________________________________________________ ________________________________________
    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 350 street/strip with 6 point cage: Custom tube headers feed Twin T3/T4 Turbochargers, Holley 650, sheet metal single plane intake, heavily ported iron heads with oversized valves, mild Poston 114 camshaft (2800-6000 RPM), Diamond forged pistons on Hershe forged rods, balanced, ARP everywhere, dual 3" exhaust, Paddle shifted 4L80E 4 speed overdrive, Moser 12 bolt with 3.42 gear.

  2. #2
    Join Date
    Sep 2012
    Location
    MI.
    Posts
    1,173

    Default Re: Matt Lesoine's (Big Matt on V8 Buick) 300 build

    Hey Sean,do you have any pictures of the intake mods? Thanks.
    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

    Edit Signature


  3. #3
    Join Date
    Sep 2012
    Location
    MI.
    Posts
    1,173

    Default Re: Matt Lesoine's (Big Matt on V8 Buick) 300 build

    Quote Originally Posted by sean Buick 76 View Post
    I will get some pics for you.
    Thanks Sean,and could you see if he ended up getting the aluminum heads flowed?

    Mark from D&D sent flow numbers to me a few years ago,and the most they could get the sbb 300 heads to flow on the intake was 177 cfm. I'm curious how much he got his to flow now,if you have access to that info.

    Thanks again.

    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

    Edit Signature


  4. #4
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    13,480

    Default Re: Matt Lesoine's (Big Matt on V8 Buick) 300 build

    Quote Originally Posted by 300sbb_overkill View Post
    Thanks Sean,and could you see if he ended up getting the aluminum heads flowed?

    Mark from D&D sent flow numbers to me a few years ago,and the most they could get the sbb 300 heads to flow on the intake was 177 cfm. I'm curious how much he got his to flow now,if you have access to that info.

    Thanks again.

    Derek
    I do have that info Derek, I will dig it up for you.
    __________________________________________________ ________________________________________
    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 350 street/strip with 6 point cage: Custom tube headers feed Twin T3/T4 Turbochargers, Holley 650, sheet metal single plane intake, heavily ported iron heads with oversized valves, mild Poston 114 camshaft (2800-6000 RPM), Diamond forged pistons on Hershe forged rods, balanced, ARP everywhere, dual 3" exhaust, Paddle shifted 4L80E 4 speed overdrive, Moser 12 bolt with 3.42 gear.

  5. #5
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    13,480

    Default Re: Matt Lesoine's (Big Matt on V8 Buick) 300 build

    Alum heads flow test:











    And the flow test for the iron 300 heads:

    __________________________________________________ ________________________________________
    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 350 street/strip with 6 point cage: Custom tube headers feed Twin T3/T4 Turbochargers, Holley 650, sheet metal single plane intake, heavily ported iron heads with oversized valves, mild Poston 114 camshaft (2800-6000 RPM), Diamond forged pistons on Hershe forged rods, balanced, ARP everywhere, dual 3" exhaust, Paddle shifted 4L80E 4 speed overdrive, Moser 12 bolt with 3.42 gear.

  6. #6
    Join Date
    Sep 2012
    Location
    MI.
    Posts
    1,173

    Default Re: Matt Lesoine's (Big Matt on V8 Buick) 300 build

    Thanks Sean.

    Its seems like the al. heads responded very well with the bigger 1.5" exaust valves vs. the 1.45" valves in the cast iron heads,it looks like bigger is better in this case. D&D results were very similar to Gessler's,without moving valve locations,or something drastic it looks like they're maxed out.

    I wonder if a repositioned and larger intake valve in the al. head will give similar,or better results than the cast iron heads. Perhaps I will find out,unless I can make a set of sbb 350 heads work with a 300 block. With a 362 or larger cid I will really need some flow to make the engine I've planned to run worth a crap.

    I would like at least 220 cfm on the intake,and at least 150 cfm on exuast @ .500 valve lift,more would be better though. Thats why I want to try and make 350 heads work,because those numbers should be relatively easy to get with them.Hell,stock 350 heads flow as much or more than the high dollar port job 300 heads!

    Hey,thanks again Sean,very useful info,appreciated.

    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

    Edit Signature


  7. #7
    Join Date
    Mar 2004
    Location
    Edmonton Alberta
    Posts
    13,480

    Default Re: Matt Lesoine's (Big Matt on V8 Buick) 300 build

    Here is a Performance 300 build that made 390 HP!

    http://www.hotrod.com/techarticles/e.../photo_01.html
    __________________________________________________ ________________________________________
    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 350 street/strip with 6 point cage: Custom tube headers feed Twin T3/T4 Turbochargers, Holley 650, sheet metal single plane intake, heavily ported iron heads with oversized valves, mild Poston 114 camshaft (2800-6000 RPM), Diamond forged pistons on Hershe forged rods, balanced, ARP everywhere, dual 3" exhaust, Paddle shifted 4L80E 4 speed overdrive, Moser 12 bolt with 3.42 gear.

 

 

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