C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

400 block

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Old Apr 1, 2008 | 05:25 PM
  #41  
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Just put a 4" stroke in your factory block and call it a day.
Aaron
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Old Apr 1, 2008 | 11:41 PM
  #42  
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Why not put a 4" stroke in that block?
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Old Apr 2, 2008 | 12:53 AM
  #43  
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nice find, the 817 blocks are the strongest out of the bunch. is it a 2 bolt ? if yes then you have yourself a winner .
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Old Apr 2, 2008 | 12:56 AM
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Originally Posted by Deakins
Why not put a 4" stroke in that block?
i built a 434 out of this block before, it wasnt easy. lots of grinding
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Old Apr 2, 2008 | 06:51 AM
  #45  
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Originally Posted by red L98
i built a 434 out of this block before, it wasnt easy. lots of grinding
I'm looking to build something fairly simple,with a forged lower,prob a 406 with 6 in rods,but open to anything as long as it is not a major PITA,any suggestions?
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Old Apr 2, 2008 | 07:03 AM
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Originally Posted by MR NICE
I'm looking to build something fairly simple,with a forged lower,prob a 406 with 6 in rods,but open to anything as long as it is not a major PITA,any suggestions?
You can carbon copy the setup that ski_dwn_it and Corkvette ran years ago. (the 406 or 412, whatever it was). If I recall that was a low 11 second N/A stupid fast build.

-- Joe
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Old Apr 2, 2008 | 01:21 PM
  #47  
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Originally Posted by MR NICE
I'm looking to build something fairly simple,with a forged lower,prob a 406 with 6 in rods,but open to anything as long as it is not a major PITA,any suggestions?

yeah, a 406 is a better choice. 434 is a pain in the *** to build out of a stock block. i see your from michigan, me 2.... let me know when you start building the thing, i can help out and i know all the best shops to get stuff done if you need anything
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Old Apr 2, 2008 | 01:22 PM
  #48  
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Originally Posted by anesthes
You can carbon copy the setup that ski_dwn_it and Corkvette ran years ago. (the 406 or 412, whatever it was). If I recall that was a low 11 second N/A stupid fast build.

-- Joe
x2 that was a nice street/strip motor
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Old Apr 2, 2008 | 04:41 PM
  #49  
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I wouldn't say building a 434 with a production block is that big of a deal... If you get a connecting rod that isn't bulky on the big end the grinding isn't that huge of an issue. Heck, the only time we mess with a raised cam and spread rails block is when we are looking for 450+ cid, not a 434...
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Old Apr 2, 2008 | 06:05 PM
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Originally Posted by Deakins
I wouldn't say building a 434 with a production block is that big of a deal... If you get a connecting rod that isn't bulky on the big end the grinding isn't that huge of an issue. Heck, the only time we mess with a raised cam and spread rails block is when we are looking for 450+ cid, not a 434...
Just so I have this straight. Building a 434 cubic inch engine with a production 400 block isnt a big deal? Havent seen to many guy do it. They seem to go aftermarket.

Changed it for you CFI. Happy now.

Last edited by 88BlackZ-51; Apr 2, 2008 at 07:05 PM.
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Old Apr 2, 2008 | 06:54 PM
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Originally Posted by 88BlackZ-51
Just so I have this straight. Building a 434 cubic inch engine with a production 350 L-98 block isnt a big deal? Do you do those often?
Ding a ling ling! It's time to wake up! When you clicked on this thread did you happen to notice the topic title?

RACE ON!!!
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Old Apr 2, 2008 | 07:04 PM
  #52  
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Originally Posted by CFI-EFI
Ding a ling ling! It's time to wake up! When you clicked on this thread did you happen to notice the topic title?

RACE ON!!!
Ding a ling! a ling! a ling! We have a winner!!!

Wake up and smell the coffee wouldn't of sounded a bit better! You better work on that one.

Last edited by 88BlackZ-51; Apr 2, 2008 at 07:07 PM.
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Old Apr 2, 2008 | 07:07 PM
  #53  
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Originally Posted by 88BlackZ-51
Just so I have this straight. Building a 434 cubic inch engine with a production 400 block isnt a big deal? Havent seen to many guy do it. They seem to go aftermarket.

Changed it for you CFI. Happy now.
On the flip side, I have seen most use a stock block.
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Old Apr 2, 2008 | 07:08 PM
  #54  
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Originally Posted by Pete K
On the flip side, I have seen most use a stock block.
Is that something you would attempt then with that 400 block of yours? I know of 2 guys in my area with 434's, but went to a Dart block.
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Old Apr 2, 2008 | 07:12 PM
  #55  
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Originally Posted by 88BlackZ-51
Is that something you would attempt then with that 400 block of yours? I know of 2 guys in my area with 434's, but went to a Dart block.
Absolutely. I had it sonic tested, and it has no core shift.
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Old Apr 2, 2008 | 07:32 PM
  #56  
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No, building a 434 with a production block isn't a big deal. Clearance it and put your parts in; the biggest part of the job is all the mock ups to check clearances, but all of the engines we do get mocked up at least 3 times before final assembly anyway. I'm not saying that you can slap it together in 4 hours, but it should not be thought of as something that's really hard to do. It simply takes thought out part selection and some patience throughout the build; two things that should be done on any engine build stroker or not... Now on some engines we do go aftermarket but simply to get a raised deck; this allows us to have a meatier piston and a longer connecting rod for engines that make a lot of power and get abused. On anything that can actually go down the street without eating up expensive valve train parts in a hurry, I wouldn’t worry too much about running a 1” compression height piston and a 6” rod with a 4” stroke in a production block. Just my .02.
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Old Apr 2, 2008 | 07:33 PM
  #57  
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Go to strokers .com they have a fully forged rotating assembly with good parts internal ballance +or - 1/2 grams for $1600 .
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Old Apr 2, 2008 | 07:46 PM
  #58  
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Originally Posted by 88BlackZ-51
Ding a ling! a ling! a ling! We have a winner!!!

Wake up and smell the coffee wouldn't of sounded a bit better! You better work on that one.
"wouldn't of sounded a bit better"??? If it wouldn't HAVE, maybe that is why I didn't say it. Work on what? Reading the topic of the thread? I can see it is a good thing I quoted the post before it was surreptitiously changed. I'm awake and following the thread. What's your excuse ?

RACE ON!!!
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Old Apr 2, 2008 | 07:52 PM
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Originally Posted by CFI-EFI
"wouldn't of sounded a bit better"??? If it wouldn't HAVE, maybe that is why I didn't say it. Work on what? Reading the topic of the thread? I can see it is a good thing I quoted the post before it was surreptitiously changed. I'm awake and following the thread. What's your excuse ?

RACE ON!!!


I dont need an excuse when your involved. I have talked to guys that go to your track. They have nothing postive to say about you.

I am glad your awake. That makes me feel really good.


Now back on topic. How well would the 434 hold up (400 block) to abuse of say a "200 shot" of the giggle gas? I am wondering about the strength of the block?
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Old Apr 2, 2008 | 07:57 PM
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Originally Posted by 88BlackZ-51


I dont need an excuse when your involved. I have talked to guys that go to your track. They have nothing postive to say about you.

I am glad your awake. That makes me feel really good.


Now back on topic. How well would the 434 hold up (400 block) to abuse of say a "200 shot" of the giggle gas? I am wondering about the strength of the block?
Every casting is different due to minor core shifts .
How well it holds up depends on too many variables.
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