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Looking for a 400 small block Chevy block

Started by killian , Dec 22 2016 02:46 PM

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15 replies to this topic

#1 killian

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Posted December 22 2016 - 02:46 PM

Looking for any leads for my cousin. His block was destroyed by the machine shop yesterday. Shop is willing to replace but finding a good one is not easy. He is looking on Long Island first but out of the area may have to happen. My cousin was supposed to pick up his engine tomorrow but I guess things happen. So if any of the car guys on here know of any leads I would greatly appreciate it. Thanks!

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#2 zzrguy

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Posted December 22 2016 - 03:02 PM

Good luck.

I had a 383 350 4 bolt main and 400 crank and rods dam thing was a beast I miss that engine


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#3 NRATC53

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Posted December 22 2016 - 03:15 PM

Looking for any leads for my cousin. His block was destroyed by the machine shop yesterday. Shop is willing to replace but finding a good one is not easy. He is looking on Long Island first but out of the area may have to happen. My cousin was supposed to pick up his engine tomorrow but I guess things happen. So if any of the car guys on here know of any leads I would greatly appreciate it. Thanks!

let me look, if I don't still have one I know a guy who does


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#4 killian

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Posted December 22 2016 - 04:04 PM

let me look, if I don't still have one I know a guy who does



That would be great, thank you!

#5 zzrguy

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Posted December 22 2016 - 04:49 PM

let me look, if I don't still have one I know a guy who does

MHM.


#6 Sport454

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Posted December 22 2016 - 07:03 PM

I've got one. Out of a 1970 Blazer. [I've had it since 1980 .... 36 years!!! HOLY [email protected]!!!]

4 bolt main, [only made in '70-'71] std/std crank [short block still assembled].

I also have a set of .030 over forged flat top pistons, NIB, that go with it.

I was building a 406 at one point too.

$750 for the lot.

 

Which machine shop did he use???


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#7 NRATC53

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Posted December 22 2016 - 07:25 PM

I've got one. Out of a 1970 Blazer. [I've had it since 1980 .... 36 years!!! HOLY [email protected]!!!]

4 bolt main, [only made in '70-'71] std/std crank [short block still assembled].

I also have a set of .030 over forged flat top pistons, NIB, that go with it.

I was building a 406 at one point too.

$750 for the lot.

 

Which machine shop did he use???

That's a deal!


#8 killian

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Posted December 22 2016 - 08:00 PM

I've got one. Out of a 1970 Blazer. [I've had it since 1980 .... 36 years!!! HOLY [email protected]!!!]
4 bolt main, [only made in '70-'71] std/std crank [short block still assembled].
I also have a set of .030 over forged flat top pistons, NIB, that go with it.
I was building a 406 at one point too.
$750 for the lot.

Which machine shop did he use???

I will pass this along, thank you very much.
I don't know which shop. Rather not put it out there. Don't want anyone thinking he is bad mouthing them over an accident.

Edited by killian, December 22 2016 - 08:17 PM.

#9 killian

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Posted December 23 2016 - 04:18 PM

Thanks for all of the help. My cousin just called to let me know that the machine shop is making it right and found a replacement block for him.
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#10 NRATC53

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Posted December 23 2016 - 06:22 PM

Best outcome. Now I don't have to go digging in my shed


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#11 zzrguy

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Posted December 23 2016 - 06:50 PM

Best outcome. Now I don't have to go digging in my shed


You where so close to a new gun thou :taunt


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#12 NRATC53

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Posted December 23 2016 - 08:19 PM

You where so close to a new gun thou :taunt

Actually, the one with the .030 over pistons was the one to take


#13 Short Track Hunter

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Posted December 24 2016 - 07:53 AM

400's you can only bore so far...before the walls get thin.


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#14 Nordon

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Posted December 24 2016 - 08:31 AM

!@@ them, tell them to buy at least a Crate motor for him.
https://www.googlead...EQwg8IHg&adurl=
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#15 TJ Ironhorse

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Posted December 24 2016 - 01:07 PM

400's you can only bore so far...before the walls get thin.


They were notorious for overheating. Siamese water jacket I believe, so yes, careful with boring them.

#16 Sport454

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Posted December 25 2016 - 10:13 AM

They do have the siamesed water jackets same as the current 502's.

While any block should be sonic checked for core shift before boring I knew a guy running as .060 over 413 that was a complete animal!

Overheating was a problem but more due to the head gasket design than the block .... they made the "steam holes" too small. Later corrected by Fel-Pro & others.

As usual, older is better than newer. 1970 especially used a higher nickel content in the cast iron. Later they went lighter & cheaper.

That's enough useless trivia for today :)


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