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Thread: BOSS 302 Engine Block

  1. #1

    BOSS 302 Engine Block

    http://www.buyfordracing.com/shop/pr...s_id=656cPath=

    <table width="98%" border="0" cellpadding="0" cellspacing="0"><tbody><tr><td width="100%">
    BOSS 302 Engine Block <!-- //-->
    </td> </tr> <tr> <td> The legend is reborn with this all new 302 block! Stronger than the original!

    • 4.125" bore capacity, finished at 3.990" to 3.995" rough bore
    • 8.2" deck height, finished at 8.200" plus .010" to .015"
    • Maximum recommended stroke 3.400"
    • Splayed 4-bolt main on 2, 3, 4, main caps
    • 2-bolt main on first and fifth main caps
    • Main bearing bores finished to low limit
    • Finished lifter bores
    • Machined to accept factory roller lifter guides and lifter guide retainer
    • Fits factory Mustang oil pan with custom oil pickup tube
    • Revised oiling and cooling system passageways
    • Siamese bore with drilled coolant crossover holes
    • Increased bulkhead material
    • Threaded core and galley plugs (straight thread port plugs with O-ring)
    • ½" head bolts
    • Uses common OD cam bearings M-6261-J351/R351
    • Unique cam plug M-6026-S351 included
    • M-6051-S331 or M-6051-CP331 head gasket recommended
    • Weighs approximately 175 lbs.
    • Great price and value
    • The foundation for 8.2" deck projects




    </td> </tr> </tbody></table>
    <table width="100%" border="0" cellpadding="0" cellspacing="5"><tbody><tr> <td colspan="2" valign="top" align="right"><script language="javascript"><!-- var thepics = "image[0]=images/products/Boss302.jpg&"; updatetext(); function popupZoom(url) { var sep = "?"; var sep_check = url.indexOf(sep); if (sep_check > -1) sep = "&"; makeWindow(url + sep + thepics, 300, 300, ((window.screen.width/2) -150), ((window.screen.height/2) -150) ); } function drawimage(thepics) { document.images.pic.src="http://www.buyfordracing.com/shop/contents/image.php?sizex=300&sizey=300& " + thepics; } function updatetext() { thepics = "image[0]=images/products/Boss302.jpg&"; drawimage(thepics); } //--></script> </td> </tr> <tr> <td class="body" valign="center" width="47%" align="right">Your Price: </td> <td valign="center" width="53%" align="left"><s>$1,650.00</s> $1,650.00</td> </tr> <tr> <td class="body" valign="center" align="right">Qty:</td> <td valign="center" align="left"><input size="3" name="products_qty" value="1" type="text"><input name="products_min_qty" value="1" type="hidden"></td> </tr> <tr> <td class="body" valign="top" align="center"></td> <td valign="center" align="left"><input src="http://www.buyfordracing.com/shop/images/safari_theme/en/button_in_cart.gif" alt="Add to Cart" type="image" border="0"></td></tr></tbody></table>

    Is this a good deal?

    2004 Silver Birch
    300B
    Build date:9/29/2003, Adopted on 12/02/05
    Exhaust by Greg
    13.630 @ 100.49 mph (11/21/10)

    2015 Ford Focus SE Sport FWD
    2013 Lincoln MKS EcoBoost AWD (377whp/423tq).
    2010 Ford Fusion Sport FWD
    1989.5 Ford Mustang 5.0 LXsport

  2. #2
    Join Date
    Nov 2004
    Location
    Smithfield, Virginia
    Age
    53
    Posts
    19,088
    Hmmm.....i don't see any spark plugs. Howzit supposed to make bang bang without pluggies? Derrrr.


    ~But, it makes it a lot easier when he is manscaped.~ Haggis
    ~Cool, I can have one of those strangulation orgasms without the strangle.
    WIN WIN!~ Zack
    ~Who needs to stop? I just wanna gooooooooooo ~ -Matt-

  3. #3
    Join Date
    Jun 2004
    Location
    Carolina Forest, Myrtle Beach, SC
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    "Is this a good deal?"

    I have no idea, but what you up to??? <!-- / message --><!-- sig -->
    2004 DTR Marauder, Built 26 February 2004, Inservice: 02 July 2004 Retired from DD 17 July 2008. Survived the cut, 28 April 2012. Back as a DD as of 18 November 2012.

  4. #4
    Join Date
    Oct 2004
    Location
    Christian Co. MO
    Age
    55
    Posts
    783
    I have been looking at the new BOSS 429 heads that are coming available. can be retrofitted to regular 429/460 blocks. been wanting 1000 hp in the f-600 for a while now...
    03 Black sequence number #2228 of 7838. First day of Gold Coolant.

  5. #5
    Join Date
    Sep 2006
    Location
    Louisville, KY
    Age
    42
    Posts
    1,382
    This is the Boss 302 block, which is an upgrade for the 5.0 engine and not for our cars. If you're using it to upgrade a 5.0 block, yes its a good upgrade if you plan to go over 550hp. Mexican blocks are good to 600hp, the R302 blocks are good to 700hp, Dart and Boss over 1000hp. Unless you are going to put some serious boost or spray the crank out you will not reap the benefits of this block.
    03 Marauder- 300B, non heated seats, T/C, no CD changer
    03 Marauder- 300A, Eaton Swapped, SOLD

    03 Marauder- 300A, 5544 of 7839 in 03, Trilogy #24, SOLD
    04 Marauder- 300B, SB with LF interior, 208k miles and still ticking SOLD

  6. #6
    Quote Originally Posted by rayjay View Post
    "Is this a good deal?"

    I have no idea, but what you up to??? <!-- / message --><!-- sig -->
    I've got a 1989 LX Sport 5.0 Mustang. I want to get a good block and start piecing a new engine together instead of rebuilding the tired 193k mile block, even though the car still runs like a champ. I'd rather not buy a crate motor because I can get most of the parts at cost price.

    2004 Silver Birch
    300B
    Build date:9/29/2003, Adopted on 12/02/05
    Exhaust by Greg
    13.630 @ 100.49 mph (11/21/10)

    2015 Ford Focus SE Sport FWD
    2013 Lincoln MKS EcoBoost AWD (377whp/423tq).
    2010 Ford Fusion Sport FWD
    1989.5 Ford Mustang 5.0 LXsport

  7. #7
    Join Date
    Jun 2004
    Location
    Carolina Forest, Myrtle Beach, SC
    Age
    68
    Posts
    7,267
    Quote Originally Posted by ctrlraven View Post
    I've got a 1989 LX Sport 5.0 Mustang. I want to get a good block and start piecing a new engine together instead of rebuilding the tired 193k mile block, even though the car still runs like a champ. I'd rather not buy a crate motor because I can get most of the parts at cost price.
    Gottcha Wish I had a toy that parts were cheap and plentiful for.
    2004 DTR Marauder, Built 26 February 2004, Inservice: 02 July 2004 Retired from DD 17 July 2008. Survived the cut, 28 April 2012. Back as a DD as of 18 November 2012.

  8. #8
    Join Date
    Jul 2007
    Location
    Central MA
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    570
    Quote Originally Posted by ctrlraven View Post
    I've got a 1989 LX Sport 5.0 Mustang. I want to get a good block and start piecing a new engine together instead of rebuilding the tired 193k mile block, even though the car still runs like a champ. I'd rather not buy a crate motor because I can get most of the parts at cost price.
    I had heard that even though the block is strong and a decent price, it needs enough machining to be as expensive as a decent R block or maybe even a Dart.

    If you've got an engine shop that will be good for you, go for it.
    -Matt

    2004 MM Silver Birch
    K&N FIPK, SCT XCal2 Tuned by Reinhart, AVIC-F90BT from John's Stereo
    Member of the SBC
    1995 Bronco XLT Red/White
    351W E4OD BFG 32x11.5-15
    1994 Mustang GT Black
    302 T-5 BFG 275/40R17 Fox TB Conversion

    Quote Originally Posted by CBT
    What a Marauder lacks in the Crown Victoria's fluffy pillows and lace image, it makes up for in the don't insult my car or I'll punch you in your man-pleaser department.

  9. #9
    Quote Originally Posted by illwood View Post
    I had heard that even though the block is strong and a decent price, it needs enough machining to be as expensive as a decent R block or maybe even a Dart.

    If you've got an engine shop that will be good for you, go for it.
    What type of machining would be needed?

    2004 Silver Birch
    300B
    Build date:9/29/2003, Adopted on 12/02/05
    Exhaust by Greg
    13.630 @ 100.49 mph (11/21/10)

    2015 Ford Focus SE Sport FWD
    2013 Lincoln MKS EcoBoost AWD (377whp/423tq).
    2010 Ford Fusion Sport FWD
    1989.5 Ford Mustang 5.0 LXsport

  10. #10
    Join Date
    Sep 2006
    Location
    Louisville, KY
    Age
    42
    Posts
    1,382
    The Boss blocks need to be checked for every clearance after shipping. They are machined from the factory, but the deck might need to be milled and it wouldn't hurt to check all the cylinders for hone and roundness.

    Your stock block is still fine unless its broken. With a simple hone or bore and a good cleaning it will last another 200k miles. The blocks are iron and can handle alot of abuse before needing replacement. All the machine work on my 91 Coupe 5.0 block was $340 and that included ARP rod bolts.

    If you need any help, I've rebuilt 10-12 5.0 engines.
    03 Marauder- 300B, non heated seats, T/C, no CD changer
    03 Marauder- 300A, Eaton Swapped, SOLD

    03 Marauder- 300A, 5544 of 7839 in 03, Trilogy #24, SOLD
    04 Marauder- 300B, SB with LF interior, 208k miles and still ticking SOLD

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