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Engine - Block Improving strength and durability - pistons to crank

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Old 10-24-2003, 11:28 PM   #1
Question T2 Bored.40 over ,to hone or not?  
Turbo60Shelby
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Some opinions for my situation,and any type of comments are welcome.

I have a 89 T2 bored .40 over that blew a head gasket,looking inside my #4 cylynder there is a scar from top to bottom of the wall,depth seems moderate and looking from the front its at the 2 oclock position(the scar).

The engine DID NOT have a wet/dry test, so if the rings are bad I do not know.
There was evident from the old head gasket that the 3 & 4 and the 1 & 2 were bleeding compression into each other.

The engine at one time was rebuilt about 10,000 miles ago ( stated from the previous owner) was all balanced and blueprinted,but I can't talk to him since he moved to Texas and I do not have his number,nor do I know him,so I am without confirmation all that was done to this engine.

Here is my thoughts.

Option #1. Go with a new short block,reman with stock parts for $1250.

Option #2 Go with a new (used) T2 block,rebuild all over again with another block that not at the limit like mine is being .40 over.

Use whatever I can from my T2 block,like the rods and crank or sell them off to lower overall cost to buy new parts to begin again from scratch.
Cost estimate unknown...What range do you think we are talking about here?

Option #3 Take my T2 block to machine shop,have him re ring and hone engine,and re-spec all my components,along with cleaning the block and take the chance at compression not being totally "sealed".

Kepp in mind for in all these options decisions...

I have a Super 60 setup totally complete along with a nicely polished,pressure tested, planed, ported head ready to be thrown onto this short block.
 
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Old 10-24-2003, 11:40 PM   #2
 
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So, you have an '89 T2 shortblock that is questionable. If you're not worried about keeping the car original then get a commonblock(89+) from a junkyard and use the internals from your engine in the new(to you) block. Everything inside your engine is 'the good stuff' to have; the crank and rods being the most important. Take the block, crank and rods to your machinist and have them check everything out, machine it as necessary and then build it. Some forged pistons would make your bottom end nearly bullet-proof.
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Old 10-25-2003, 12:30 AM   #3
 
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Honestly, you should replace the block. You may be able to have the block sleeved, but it is quite pricey, and your block as alreay at is bore limit. You would have to disassemble it all anyway.

JOe
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Old 10-25-2003, 12:39 AM   #4
 
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I agree with Joe. Common blocks are cheap and easy to find.
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Old 10-25-2003, 12:59 AM   #5
Option #2  
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Go with option #2

The cost will be the same or less than option#1 AND you will have better parts than a reman engine. Remember not many remanufactured come with good pistons, which is a big problem with our engines.

Mike
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Old 10-25-2003, 01:07 AM   #6
 
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89+ in years huh,why these years and over?
(excuse my rookie-ness )

I guess this eliminates a engine sitting in my girlfreinds backyard I am parting out,which is a 87 Daytona T1 non intercooled pacifica with 130,000 miles and still running good.

Not having the thicker main webbing will be the only overall differance between the common block 89+ (and over yrs) and my current T2 89 block if/when switched over,correct?
 
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Old 10-25-2003, 01:17 AM   #7
 
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I was thinking that Mike ,the pistons were of some concern to me.
I have yet to find out what this recon business uses in the T2 reconned block.
 
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