"Seasoned " block
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,928
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Cruise-In V Veteran
St. Jude Donor '09
"Seasoned " block
If I want to build up a Darton sleeved block should I start with a new block or is it better to use a seasoned block. Are aluminum blocks seasoned after repeated temp, stress, strain cycles? :cool: :cheers: :steering:
Le Mans Master
Joined: Nov 2000
Posts: 7,391
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From: Chandler AZ
Re: "Seasoned " block (binksZ06)
As far I as know... there is no such thing as "seasoning" aluminum.
From what I understand... and I will not even pretend to be a chemist/metalergist (sp?)... seasoning of iron blocks takes place when left in the elements for long periods of time. I'm sure temp cycling has something to do with it... and something about voids in grain structures, grain structure sizing, changes over time allowing a casting to become more rigid.
Sorry for my lame attempt at an explanation... but thats how I understand it.
FWIW... our engine builder has stacks of bare rusted blocks sitting on racks outside his shop... "seasoning"...
From what I understand... and I will not even pretend to be a chemist/metalergist (sp?)... seasoning of iron blocks takes place when left in the elements for long periods of time. I'm sure temp cycling has something to do with it... and something about voids in grain structures, grain structure sizing, changes over time allowing a casting to become more rigid.
Sorry for my lame attempt at an explanation... but thats how I understand it.
FWIW... our engine builder has stacks of bare rusted blocks sitting on racks outside his shop... "seasoning"...
Thread Starter
Safety Car
Joined: Mar 2002
Posts: 4,928
Likes: 1
Cruise-In V Veteran
St. Jude Donor '09
Re: "Seasoned " block (billreid1@***.net)
Bill,
Definitely not a lame attempt.Thanks for the help. I can't remember ever reading anything about grain structure changes in aluminum blocks. I do remember reading about Smokey Yunick ( God Bless Him, RIP) digging for iron blocks in junkyards.
joel
:cheers:
Definitely not a lame attempt.Thanks for the help. I can't remember ever reading anything about grain structure changes in aluminum blocks. I do remember reading about Smokey Yunick ( God Bless Him, RIP) digging for iron blocks in junkyards.
joel
:cheers:
Melting Slicks
Joined: Jan 2002
Posts: 2,049
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From: kansas city MO
Re: "Seasoned " block (binksZ06)
When BMW was racing in the early 80's, their motorsport division bought back 1-2yrs old used BMW just for the block to be used in their turboboosted race car. They run something like 40+PSI & extract 1000+ HP from a displacement that were just over one liter. :eek:
They're iron block however.
They're iron block however.
