You do see my handle, right? Lol
CK5
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Entertain Us - 400 sbc question
- Thread starter Bent77
- Start date
You mean a gen4 LS old man?
I go to dinner and see 6 pages of nutty slash quasi engine tech. Interesting read-through.
I’m confused by the premise when/if a big block is available.
I’m confused by the premise when/if a big block is available.
Yep. I was heading to bed.
Got up at 4:45 because the dog wanted out. Clocked in at work at 6:00. Now I'm checking to see what you guys posted.
Had to do something. Didn't have any D60 hubs to sell.
Are dogs are on the same schedule, mine sleeps all day and loves to get me up early.
Got to get up early so you have plenty of time to get to work with that anemic 400 moving at the speed of sloth. Lol
Holy crap you guys are killing me 
Mine isn't anemic.
Besides, I daily drive the '01 2500HD.
It has less than 400 cubes, so it gets 1 mpg more than if it had an 8.1.
One of the most productive threads recently, ehh??Holy crap you guys are killing me
I get it I wouldn’t daily a 400 eitherMine isn't anemic.
Besides, I daily drive the '01 2500HD.
It has less than 400 cubes, so it gets 1 mpg more than if it had an 8.1.
Oh I have quite a bit in the past. Then I painted the truck, so I didn't like leaving it sit out in the dust all day at work. And I haven't finished the A/C system, so my old a$$ didn't like the hot summer ride home much when other trucks had working A/C.
The smiles per mile are quite worth the gas bill with a 406!
You and bent just haven't learned how to tune a 400. I never have had mine run hot! Neither did Dad.
Some folks just can't handle more than 354 cubes!
366 LS ftwOh I have quite a bit in the past. Then I painted the truck, so I didn't like leaving it sit out in the dust all day at work. And I haven't finished the A/C system, so my old a$$ didn't like the hot summer ride home much when other trucks had working A/C.
The smiles per mile are quite worth the gas bill with a 406!
You and bent just haven't learned how to tune a 400. I never have had mine run hot! Neither did Dad.
Some folks just can't handle more than 354 cubes!
Yeah, probably hard to get your carb to only work downhill with a tail wind….Oh I have quite a bit in the past. Then I painted the truck, so I didn't like leaving it sit out in the dust all day at work. And I haven't finished the A/C system, so my old a$$ didn't like the hot summer ride home much when other trucks had working A/C.
The smiles per mile are quite worth the gas bill with a 406!
You and bent just haven't learned how to tune a 400. I never have had mine run hot! Neither did Dad.
Some folks just can't handle more than 354 cubes!
While I was born in the era, I have yet to have the pleasure or annoyance to actually drive anything with a stock 400 small block. If I was to listen to my Dad complain about them they were like any other smog era engine that was choked down to low output. He replaced a couple for folks that cracked due to overheating with 350’s with really no change in performance.
For me I wouldn’t put much effort into one for the fact that if anything went sideways on the block finding another 50 year old 400 block isn’t as easy as it used to be. Add to that some old farts wanting stupid money for them because they are the big small block. Factory roller cam block 350’s are way more available as cores and are a crank swap and bore job away from more cubes without some of the 400 block problems.
Besides if you really want need a bigger cube small block just pony up the cash for a bigger Dart block and call it a day.
For me I wouldn’t put much effort into one for the fact that if anything went sideways on the block finding another 50 year old 400 block isn’t as easy as it used to be. Add to that some old farts wanting stupid money for them because they are the big small block. Factory roller cam block 350’s are way more available as cores and are a crank swap and bore job away from more cubes without some of the 400 block problems.
Besides if you really want need a bigger cube small block just pony up the cash for a bigger Dart block and call it a day.
Also not a stock 406Oh I have quite a bit in the past. Then I painted the truck, so I didn't like leaving it sit out in the dust all day at work. And I haven't finished the A/C system, so my old a$$ didn't like the hot summer ride home much when other trucks had working A/C.
The smiles per mile are quite worth the gas bill with a 406!
You and bent just haven't learned how to tune a 400. I never have had mine run hot! Neither did Dad.
Some folks just can't handle more than 354 cubes!
And as I recall, the 354” motor ran great until you touched it…
This makes to much sense for this thread.
That dart block is really a winner. Not cheap, but you can buy them honed and prepped
There isn’t much meat in the cylinder walls of a 400 to start with so pushing beyond 0.030” is only doable once IIRC.
Chances of finding a virgin 400 block that hasn’t already been bored is pretty slim. I remember hearing my Dad go through at least one that somebody did bore out a 400 and it just exaggerated the hot running b/s.
Though the cost of that dart block being what it is, you could spend that on a junkyard rat and pop heads/intake/cam on and make reliable solid hp/tq at a lower rpm.
You keep ignoring/ forgetting that I have driven it stock and then built it.
Whose memory sucks??
You helped to convince me to swap heads on the 354 after a factory head cracked.
And it wasn't a 400 head...
I should have found someone to fix that head rather than the snowball of parts that I threw at this engine.
