400 Engine Build
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Re: 400 Engine Build (Jack71)
No need to appologize, Jack
Thus isn't a debate or an arguement. It is just a statement of a simple fact, for the benifit of any, who may be unaware.
If someone wants to argue how much power one will withstand over the other, a "spiral" could ensue. I didn't mention it to start an arguement.
RACE ON!!!
Sorry, my bad.
It appears this thread is going into the 400sbc 2 or 4 bolt spiral of death...
RACE ON!!!
Le Mans Master
Joined: Jul 2001
Posts: 9,622
Likes: 16
From: absecon nj
Re: 400 Engine Build (phxraptor)
i meant the 406 not the crate motor,my last 406 was a 4 bolt also.But i usually prefer 2 bolt blocks over 4 bolts and have them converted if serious power is going to be made.
Thread Starter
Burning Brakes
Joined: Nov 2002
Posts: 930
Likes: 1
From: Phoenix Az
Re: 400 Engine Build (patsnitrovette)
Thanks for the help. I found a core guy that has 2 509 long blocks that he says are 10 over, $ 250. will keep you guys posted. :cheers: :seeya
[Modified by phxraptor, 2:56 AM 8/12/2003]
[Modified by phxraptor, 2:56 AM 8/12/2003]
Le Mans Master
Joined: Jun 2003
Posts: 5,446
Likes: 2
From: Not Correctly Restored Stingray Fla.
Re: 400 Engine Build (phxraptor)
You guys are smarter than that!! You find BONES in a boneyard an JUNK in a junkyard. Even if you want to do all assembling yourself, you can go to a local independent machine shop (performance) not NAPA or like that and by a block there already knowing what's with the block (.010,.030,over or whatever) Here you spend more time in the "junk"yard looking for hopefully not junk and returning for a second or third time. Spend a little bit more $$$ and save ALOT more time and :banghead: headaches. Just think where you can spend that extra time you saved. Probably have the engine in and running by now. :thumbs:
Burning Brakes
Joined: Dec 2002
Posts: 947
Likes: 0
From: Middletown N.Y.
Re: 400 Engine Build (lotahp)
I've got a 400 4-bolt I just brought and machined. It's .040" oversize and it sonic tested @ .200" cylinder wall thickness around the cylinders. My machinist told me that it's the thickest 400 he's ever seen ! Does any one out there have any experience with cylinder wall thickness on 400's. I might sell this block or keep it I don't know yet. 4 bolt's should be good for 550hp and moderate use. I 've had no problems with a couple i've put together. Stock blocks (2 bolts converted to 4 bolt splayed) are good for about 700hp and light nitrous after that a aftermarket block is in order. Anyone on cylinder wall thickness?
