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460 engine

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Michael Earnest

09-28-2002 07:57:22

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I want to bore a c 263 block out to 4" and use 350 chevy pistons in it. Can I do this without sleeving it, if I fill the water jacket with hard block?

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bigmotors

09-30-2002 02:26:25

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Re: 460 engine in reply to Michael Earnest, 09-28-2002 07:57:22

Mike, go 3.875 with no problems at all. 4.125 sleeved. Around 5.750 on the crank is about it.
Why the change in colors? The two lungers just not fast a-nuff anymore? How did your crops turn out this year? Take Care!

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09-29-2002 06:40:37

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Re: 460 engine in reply to Michael Earnest, 09-28-2002 07:57:22

when you hard block a 301 at 4" do you have to do the block alway to the top or can you leave it down 1.5" or2"

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P Amateis

09-28-2002 20:57:17

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Re: 460 engine in reply to Michael Earnest, 09-28-2002 07:57:22

460 block is a 221 for gas 236 for diesel. Both have wet sleeves also the 263 has wet sleeves.The 301 has no sleeves. 301 by far the best way to go but does need hardblock at 4 inch bore.

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old puller

09-29-2002 08:24:29

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Re: Re: 460 engine in reply to P Amateis , 09-28-2002 20:57:17

the above have dry sleeves not wet

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better yet, use the 350 chevy v-8 heads, they're NATPA legal too!!

09-28-2002 13:23:44

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Re: 460 engine in reply to Michael Earnest, 09-28-2002 07:57:22

yes you can, and ALSO use the heads, they are NATPA legal too!!

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Brad

09-28-2002 14:37:46

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Re: Re: 460 engine in reply to better yet, use the 350 chevy v-8 heads, they're NATPA legal too!!, 09-28-2002 13:23:44

I think it is time to quit the BS. Lets get this board back to what it is meant for. Yes you can bore the 263 block or 301 block for 4" pistons without sleeves, but with the hard block.

Brad

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09-28-2002 18:29:14

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Re: Re: Re: 460 engine in reply to Brad, 09-28-2002 14:37:46

Explain this hardblock stuff please.

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TimC

09-29-2002 18:37:08

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Re: Re: Re: Re: 460 engine in reply to BD, 09-28-2002 18:29:14

Something like concrete. Keeps the sleves/cylindars from shifting or changing shape.
You would need more clearance between the piston and sleve because they can't expand out anymore and have to come in.

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