Thread: 400 block

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I ran mine all summer long with no steam holes in the bistering heat at the stop light omg omg omg its gonna blow. not really all i got to say is if u wanna 406 and u dont like the idea of no stem holes put them in they will. or go after market block they sell them all day long. erik u got a threefitty block i want 1 my 400 gonna blow tommorrow


KURPLUNKED

Originally posted by 383 chev
I ran mine all summer long with no steam holes in the bistering heat at the stop light omg omg omg its gonna blow. not really all i got to say is if u wanna 406 and u dont like the idea of no stem holes put them in they will. or go after market block they sell them all day long. erik u got a threefitty block i want 1 my 400 gonna blow tommorrow


KURPLUNKED

UMMM,why do you call yourself 383 Chev then??What is a threefitty block?

Originally posted by 383 chev
ummm no!! in order for u to run with no steam holes it is recommeded that ur cruise speed be 3000rpm or more give steve morris a call see what he has to say he'll be glad to help

Do you work for steve morris? You sure do put his name out there. I am sure he has his own opinons.

Originally posted by erik erikson
I am not saying it can or will replace the steam holes but it does provide a more direct shot of water and in a larger volume.I would think the water would absorb more of the heat than the steam would and would help get rid of the (hot spots).

To my knowledge (does not mean I think I am right) the problem doesn't come from water volume. I think that if you didn't have the holes between them cylinders the water would make a hot spot and turn to steam. It would trap the water and just keep heating it. The holes prevent steam because it lets the water flow. I could be wrong though......unsure....??

Originally posted by 383 chev
I ran mine all summer long with no steam holes in the bistering heat at the stop light omg omg omg its gonna blow. not really all i got to say is if u wanna 406 and u dont like the idea of no stem holes put them in they will. or go after market block they sell them all day long. erik u got a threefitty block i want 1 my 400 gonna blow tommorrow


KURPLUNKED

I guess if money was no object I'd have a couple of them 1750-2300 dollar blocks. Hell I'll even take donations from you.

I quit reading when 75TA said he was pulling a 383 to use a 421 and is overlooking the 377 build. OH MY GOD, I thought all these 'rock throwers' knew thats the only logical thing to do with a 400 block. Well,,,,,,,there is this road on Pikes peak that has a very narrow curve and I just think a 400 would look so lovely going,,," help I'm going to starve to death before I hit the bottom ".

Originally posted by shevy not heme
I quit reading when 75TA said he was pulling a 383 to use a 421 and is overlooking the 377 build. OH MY GOD, I thought all these 'rock throwers' knew thats the only logical thing to do with a 400 block. Well,,,,,,,there is this road on Pikes peak that has a very narrow curve and I just think a 400 would look so lovely going,,," help I'm going to starve to death before I hit the bottom ".

A 377 has no place in a street mobile. That engine don't make power till about 4000 rpm. Unless you want to run a big stall or a manual and a deep gear is a must. I like torque and long strokes equal long torque numbers. Cubes is where it at on the street.

Originally posted by erik erikson
UMMM,why do you call yourself 383 Chev then??What is a threefitty block?

cause i had 1 and i cant change my name and i never thought i'd own a 406. 400 block if u will but u know now that i have ran 1 i will never go back ok. everthing i say is JIMHO. Steve Morris helped me with the combo and put the rotating assembly together degreed the cam and i did hte top end cause i just gotta have my hands in it. I am set in my ways u are set into yours and lets agree to disagree and no donations from me either. and my next motor will be a 406 and the 1 after and the 1 after that and the 1 after that and the 1 after that and the 1 after that

oh and i think u post just see how many u can get JIMHO

Originally posted by 383 chev
oh and i think u post just see how many u can get JIMHO

YOU KNOW WHAT THEY SAY ABOUT OPINIONS.L.O.L

yeah and ur is so great that u repied within seconds get `1

Originally posted by 383 chev
yeah and ur is so great that u repied within seconds get `1

UMMM,ACTUALLY IT WAS MINUTE'S.THERE ARE 60 SECOND'S IN ONE MINUTE.

120 seconds in 2 minutes

This thread has turned in to a fricking joke!

Originally posted by erik erikson
Perhaps,they are just weak blocks.Hey why don't they build them any more?I can't even find them in the G.M catalog.I wonder why that is?Could it be G.M. also thinks they are junk?I build them the same way I build my 383's.I am getting about 40 nights on my 383's before I even touch them. If you will notice I am cracking the blocks.Well over 650 h.p. maybe in a drag car for 6 seconds in the 1/8 or maybe a 10 second 1/4 mile pass but never in a circle track car lap after lap.You might get 10 -20 nights out of one if you are very lucky.Better say you hail Mary's if you are really making these h.p. numbers.

Most of the Gen I small block blocks GM is producing nowadays are of a 400 bore (4.125" or greater), some do have 400 mains, and most have siamesed bores, just like the 400. Heck, even the new LS2 and LS7 motors have siamesed bores. There is nothing wrong with cylinders that touch.