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Re: [Tigers] Machine shop questions

To: "'Tiger Man'" <Tigerman67@hotmail.com>, <tigers@autox.team.net>
Subject: Re: [Tigers] Machine shop questions
From: "A. C. Tynes" <v8tracker@gmail.com>
Date: Mon, 15 Dec 2008 16:20:23 -0600
Steve,

I can't help with all the questions, but I can tell you for sure that the
cylinder walls in a 302 block are a little longer than in a 289. During the
289-302 changeover, a number of 289 engines were built with 302 blocks. But
building a 302 (or a stroker) in a 289 block is probably not a good idea. 

I also have read that the 289 can take up to a .040" overbore, but that's
the limit.

HTH,
A. C. Tynes
New Orleans

> -----Original Message-----
> From: tigers-bounces@autox.team.net 
> [mailto:tigers-bounces@autox.team.net] On Behalf Of Tiger Man
> Sent: Monday, December 15, 2008 3:25 PM
> To: tigers
> Subject: [Tigers] Machine shop questions
> 
> Hey there,
> 
> I thought I would ask the group some questions and see if you 
> guys can bring up my machine shop IQ.
> 
> I found a deal on a used 289 5 bolt bell housing reasonably 
> local to my area for not much money.  Would have loved to 
> know these answers before I shelled out money, but since I 
> didn't spend too much, I hope that means I can't loose that 
> much either.
> 
> So here are some basic machine shop type questions I have.
> 
> How can you accurately measure or determine the current 
> bore/piston size on a used block, without being able to take 
> it to the machine shop first.  I don't see any markings on 
> the piston that would help me out.  I'm assuming my standard 
> cheap digital caliper can't measure it because 1) it doesn't 
> have the reach to measure an inside diameter beyond the 
> 'ridge' area.  and b) because it has some width to it, and 
> not a blade point It will be off by a bit when trying to 
> measure the inside of a cylinder.
> 
> If the block or pistons come out at 30 over already, can the 
> block be cleaned up to 40 over, or are you just asking for 
> trouble (overheating)?
> 
> Is a 5 bolt 289 block worth having sleeved if the bore is out 
> of spec, or is that an outrageously expensive option?
> 
> Would a mild stroker kit fit in a 289 block, or when they 
> went to the 302, did they physically change the length of the bore?
> 
> Is there any way you can tell or test to see if a set of used 
> ford heads already has hardened valve seats in them?  I am 
> assuming that if it had hardened valve seats already 
> installed, that would significantly reduce the cost to 
> recondition a set of heads?
> 
> Anyway, thanks for any help you guys can give me, hopefully I 
> didn't buy a large paperweight.
> 
> Steve
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