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Old 03-03-2006, 06:10 PM
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a call from the machine shop

I was at work,and got a call from the machine shop,and the 400 Chevy small block I was building,and was suppose to have bored 60 couldn't be bored he said at the bottom of the cylinder was extremely wide,or had moved or something,but what should I do I know I can't find another 400 so I am going to have to build a 350.If I do I will make it a 400 crank,and a set of 6" rods,but is it enough?The car I am running is a 77 camaro,and I know it is heavy.The goal is to try to get it into the 11s will this be enough.I have new aluminum heads big cam,roller rockers,victor junior intake.I know I need to make 500 horses any suggestions will help.Use a 350 or go with an aftermarket 400 block?kinda on a budget though

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Old 03-03-2006, 06:18 PM
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Just have the shop sleeve your cylinder. A properly installed repair sleeve can be better than the rest of the block.. Been doing them for years!!
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Old 03-03-2006, 06:22 PM
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I asked and he said it would cost to much,and I could buy one after market.He said the top cleaned up good but the bottem had moved or something never heard of that happening,How much does that normally cost?
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Old 03-03-2006, 06:53 PM
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i was going to suggest sleeving it too... but something dosn't feel right... i would take it somewhere else an get a second opinion... i have a hunch he wants the SB400.. .being that they are getting harder to find...

hell sleeving all 8 cylinders won't be as expensive as buying a motown SB 400 block. i think he is just feeding you a load.... my $.02
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Old 03-03-2006, 07:03 PM
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Yea

Yea that may be it.They are extremely hard to find, I have never been told the bottom of the cylinder has moved not sure what he meant by that.I have built alot of small blocks,and never been told that.You may be right
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Old 03-03-2006, 07:07 PM
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Quote:
Originally Posted by dboyett38666
Yea that may be it.They are extremely hard to find, I have never been told the bottom of the cylinder has moved not sure what he meant by that.I have built alot of small blocks,and never been told that.You may be right

ok giving it more thought... how did it move? when it was getting cut... did a buddy of his bump the machine? then it mis cut? sleeving it and block fill will probably do the trick.. and sleeved would be way strong... it really dosen't add up to me... i'd get a second opinion... get it back and take it somewhere else..
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Old 03-03-2006, 07:14 PM
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Exactly he said it moved while he was boring? Dont know how but yea i will be there Monday morning to pick it up.Something is not right.
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Old 03-03-2006, 07:25 PM
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Its his fault then...he should have to fix it free of charge and he knows it...thats why he is feeding you that line. Any reputable machine shop would have sleeved that for you for no charge. Get your block and take it somewhere else and have it sleeved.
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Old 03-03-2006, 07:27 PM
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if he messed it up then he should pay you for the block??
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Old 03-03-2006, 07:30 PM
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get an estimate from another shop and ask them if he messed something up... then tell him that here is the bill... of work you did... take pictures... and be ready for a fight... he should stand behind his mistake... and fix it.
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Old 03-03-2006, 07:37 PM
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I'll go get it monday,and pick it up.I'm not going to tell him what I am going to do with it,but I will take it to another machine shop,and see what he says,but he did tell me that it did it while he was boring,and I noticed he had someone new working there.I wonder if he was the one who did it.What should I look for I never heard of a cylinder moving?
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Old 03-03-2006, 07:40 PM
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Bet you bored the first hole and didnt realize the rear seal flange is smaller then the main bores. Causing him to have block in machine slightly crooked left a big ol shadow at bottom of cylinder.
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Old 03-03-2006, 08:19 PM
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Hmm, I've got a 2 bolt 400, .030 over and ready to assemble and couldn't sell it for $300 in the paper here, and we have lots of roundy roundy racers here too.
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Old 03-04-2006, 09:19 AM
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Jmark,
If that block was up here I would give you $300 for it in a heart beat. Matter of fact it might be worth me shipping it. There just aren't many good ones around certain areas. I hear some people say they can find them all day long (in some areas of the country). It all depends on where you are.

Royce
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Old 03-04-2006, 09:33 AM
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Quote:
Originally Posted by Greg Latvala
Bet you bored the first hole and didnt realize the rear seal flange is smaller then the main bores. Causing him to have block in machine slightly crooked left a big ol shadow at bottom of cylinder.
I am with you on this deal. The rear seal bore is smaller than the main bearing bore. I'd bet just like Greg says they set it up crooked in the boring machine. When you go to the shop to pick up this block see if the bottom on the cylinder is the old surface but the rest is new machined. Making the cylinder very egg shaped. Don't call ahead just go get it. Sounds to me the new guy screwed up. As to sleeving a 400 I would not do it. The time you bore that out the sleeve will be into the head bolt holes, and it will probably leak. If you were going std bore and just fixing the block OK but not going .060 over.
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