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Old 04-11-2024, 12:43 AM   #1
David Lee
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Default On a low HP engine

should you have the block align honed?
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Old 04-11-2024, 06:36 AM   #2
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Default Re: On a low HP engine

Is the block housing bores straight and the correct size ?
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Old 04-11-2024, 07:30 AM   #3
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Default Re: On a low HP engine

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Is the block housing bores straight and the correct size ?
not yet, just wanted to know what to tell the machine shop to do
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Old 04-11-2024, 08:53 AM   #4
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Default Re: On a low HP engine

Did you take the block apart? How did the bearings look? The crank? Did the crank spin free in the block?
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Old 04-11-2024, 09:26 AM   #5
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Default Re: On a low HP engine

aline hone straightens up the thrust bearing area...always a bummer if you find out theres an issue during assembly.
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Old 04-11-2024, 11:44 AM   #6
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Default Re: On a low HP engine

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Did you take the block apart? How did the bearings look? The crank? Did the crank spin free in the block?
i have a bare block and a crank that is in fantastic shape from that came from another engine
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Old 04-11-2024, 03:00 PM   #7
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Default Re: On a low HP engine

I've seen too many variabes in factory mass production machining to say No.

I got to where I just lightly trimmed (.001-.002) the caps and dusted the main bores with the align hone on ever engine I built. It was amazing what I ran into.
If it is a SBS or BBC be sure to install the oil pump. When it is torqued it affects the rear main bore.
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Old 04-11-2024, 04:07 PM   #8
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Default Re: On a low HP engine

I would have the machine shop check the main bore sizes with a dial bore gauge and straight edge to see if the block is straight and true. Somehow hen the block is line honed it causes timing chain fitment issues. You can get undersized sets to compensate for that but can be a pain. In all my years of racing I have only had one block line honed. That was after I broke a crankshaft. That block was never right after that. Ended up scrapping it.
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Old 04-11-2024, 05:28 PM   #9
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Default Re: On a low HP engine

Quote:
Originally Posted by Adger Smith View Post
I've seen too many variabes in factory mass production machining to say No.

I got to where I just lightly trimmed (.001-.002) the caps and dusted the main bores with the align hone on ever engine I built. It was amazing what I ran into.
If it is a SBS or BBC be sure to install the oil pump. When it is torqued it affects the rear main bore.

would that be true for a small block mopar?
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Old 04-12-2024, 07:49 AM   #10
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Default Re: On a low HP engine

Quote:
Originally Posted by richie 2 View Post
aline hone straightens up the thrust bearing area...always a bummer if you find out theres an issue during assembly.
How does the aline hone straighten the thrust area?
Thanks.
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