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pulling engine question
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JM View Drop Down
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Joined: 12 Sep 2009
Location: United States
Points: 379 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JM Quote  Post ReplyReply Direct Link To This Post Topic: pulling engine question
    Posted: 21 Apr 2010 at 8:51pm
Is there a common off the shelf piston-sleeve combo that can be used for a big bore set up. Just trying to see if there is a economical approch to this without ordering custom sleeves and pistons. Thanks,JM
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mlpankey View Drop Down
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Joined: 13 Sep 2009
Location: Vols country
Points: 4580 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mlpankey Quote  Post ReplyReply Direct Link To This Post Posted: 21 Apr 2010 at 9:00pm
if you stroke it or us a 8 inch rod either chrysler or h rod a 413 chrysler piston makes for a 4.188 bore . A 427 chevy truck piston  has to be for the 10.2 tall deck engine . it will make a 4 1/4 bore .
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JM View Drop Down
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Joined: 12 Sep 2009
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Points: 379 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JM Quote  Post ReplyReply Direct Link To This Post Posted: 21 Apr 2010 at 9:14pm
Can the allis sleeves be bored out to 4.25? If so, will they hold up ok?
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JM View Drop Down
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Joined: 12 Sep 2009
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Points: 379 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JM Quote  Post ReplyReply Direct Link To This Post Posted: 21 Apr 2010 at 9:18pm
I have a source for internation 466 sleeves and pistons. They are 4.3 bore, I am going to take my WC engine apart Friday and take some measurements to see if those are useable. How much hp will I gain by going to 4.25 or 4.3 with a 4.5 stroke?
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mlpankey View Drop Down
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Joined: 13 Sep 2009
Location: Vols country
Points: 4580 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mlpankey Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2010 at 10:31am

a 4.3 bore would be a 261 cubic inch motor . Depending on what you did compression ratio wise would also determine the hp but if you stayed at 8.1 the cubic inches should make 5 to 20 extra ponies.  you can times that by 2  if you get into drag racing engine compression ratios then times it by 2.5 with some cam upgrades.
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Fred in Pa View Drop Down
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Joined: 13 Sep 2009
Location: Hanover Pa.
Points: 9210 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Fred in Pa Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2010 at 12:08pm
Bottom line before pricing and having to chage 20 other things on the engine to make work with what you want or trying  to do is,How much do you want to SPEND !!!!!!!  Then go from there and ask what kind of HP can I get for this MONEY!!!!!!!!
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 20891 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2010 at 12:42pm
Well said Fred !!!
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skipwelte View Drop Down
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Joined: 29 Oct 2009
Location: Anthon, Iowa
Points: 723 		Post Options Post Options   Thanks (0) Thanks(0)   Quote skipwelte Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2010 at 2:31pm

Yup, jus like the ole drag racing rule,  How fast ya go depends driectly on how much money ya spend!!!!!!
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mlpankey View Drop Down
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Joined: 13 Sep 2009
Location: Vols country
Points: 4580 		Post Options Post Options   Thanks (0) Thanks(0)   Quote mlpankey Quote  Post ReplyReply Direct Link To This Post Posted: 22 Apr 2010 at 3:50pm
I agree with fred dr allis and skip even if they were brand new sleeves and gave to you . They could possibly be the cost of turning the out sides of the sleeve down and the boring of the block to accept the sleeve . Which trust me is alot of work . I personally wouldnt do a  4 5/8 or a 4 11/16 bore for less than 1600 labor cause its like boring three big blocks by the time you get there.  the 413 chrysler piston can be used and old sleeves bored safely relatively cheap you have to have the rod journals turned down to the h farmall rod and it makes relatively low compression for a pulling engine at 10.1.1.

Edited by mlpankey - 22 Apr 2010 at 3:57pm
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