2 Bolt Main Into A 4 Bolt Main? - 460 Ford Forum
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post #1 of 17 (permalink) Old 01-28-2010, 01:02 PM Thread Starter
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2 Bolt Main Into A 4 Bolt Main?

Sorry for the novice questions but here it goes anyway...

Can you turn a 460 2 bolt main block into a 4 bolt main block on the # 2,3 and 4 mains?
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post #2 of 17 (permalink) Old 01-28-2010, 01:04 PM
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yes
use splayed caps, even the cheapies seem to work, but are hard to machine iirc.

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post #3 of 17 (permalink) Old 01-28-2010, 02:58 PM
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post #4 of 17 (permalink) Old 01-28-2010, 03:22 PM
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Cool

Quote:
Originally Posted by MrScharfenberger View Post
Sorry for the novice questions but here it goes anyway...

Can you turn a 460 2 bolt main block into a 4 bolt main block on the # 2,3 and 4 mains?
Yes, and they will hold up to as much power as you could throw at the cylinder block. There are different 4-bolt cap conversion available depending on which 2-bolt cylinder block you are starting with. Use the search function and read up.

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post #5 of 17 (permalink) Old 01-28-2010, 03:44 PM
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Quote:
Originally Posted by bruno View Post
That link does not work, Bruno.

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post #6 of 17 (permalink) Old 01-28-2010, 04:51 PM
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Worked fine for me guess bruno fixed it.

89 F150 351w powered
95 F150 300 I6 5 speed soon to be 460 powered lightining clone
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post #7 of 17 (permalink) Old 01-28-2010, 06:13 PM
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Still doesn't work for me. Maybe I'm still accidentally banned due to someone's douchebaggery.

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post #8 of 17 (permalink) Old 01-28-2010, 09:45 PM
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Greg, can you not view any of the posts there?
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post #9 of 17 (permalink) Old 01-29-2010, 04:16 AM Thread Starter
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Well this certainly helps. I'm turning to many RPM with to much power. I'm going to have to do something before I tear things up.... AGAIN!!
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post #10 of 17 (permalink) Old 03-31-2010, 05:40 PM
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Broken #2 main cap

Hi guy's I'm new to the Ford family, took apart my marine motor outa my boat due to low compression. figured a hone job and rings and maybe a nice thumper cam will wake this thing up. Anyways upon my removal of the main caps i found #2 cap broken needing some help on why this happend.
Also what would be a good replacement cam to use to keep original valve train.
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post #11 of 17 (permalink) Old 03-31-2010, 05:44 PM
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Broken 32 main cap

Sorry, I forgot new guy jitters, its a 460 320hp marine motor original to the boat 77 hawaiian day cruser with a jacuzzi jet.
Also it is a D1ve block with d3 heads.
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post #12 of 17 (permalink) Old 04-01-2010, 02:34 AM
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Cool

Ed where are you located? We are in CA and I have blocks for days, and am also a performance boater and can offer engine combo advice. Call or PM.

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post #13 of 17 (permalink) Old 04-01-2010, 06:05 PM
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Isn't it better to install 4 bolt caps to a DOVE-A block? All the D1VE's I've seen have the thinner pan rails and main webs. There just does not look like a lot of meat for the splayed bolts due to the thinner web area.
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post #14 of 17 (permalink) Old 04-01-2010, 07:25 PM
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Caps.

There are aftermarket caps for both style blocks. Either block works fine.

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post #15 of 17 (permalink) Old 04-01-2010, 07:55 PM
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What kind of HP and or RPM would a guy reccomend to be the limit of a 2 bolt main with ARP studs in a 1978 car block?

93 F150 4x4 Big Block Ford Truck!
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