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-   -   sbc 400 (https://www.racingjunk.com/forums/showthread.php?t=30147)

Prater22 03-30-2011 03:48 AM
sbc 400
 
I have a 400 block bored .060 over with a 350 crank in it i just got does anyone know what the displacment would be?

wrightway 03-30-2011 05:04 AM
Re: sbc 400
 
Originally Posted by Prater22
I have a 400 block bored .060 over with a 350 crank in it i just got does anyone know what the displacment would be?
bore
4.185
stroke
3.48
c.i
382.9579172496

curtisreed 03-30-2011 07:20 AM
The formula is bore x bore x stroke x .7854 x number of cylinders in case you want it for later.

markdunlap 03-30-2011 01:49 PM
SBC
 
In the old days I had one of those, but it was a 377.

I think a 348 is with a 3 1/4" stroke 327 crank.

wrightway 03-30-2011 06:18 PM
Re: SBC
 
Originally Posted by markdunlap
In the old days I had one of those, but it was a 377.
377 is a 4.155 bore

Originally Posted by markdunlap
I think a 348 is with a 3 1/4" stroke 327 crank.
3 1/4 =3.25

curtisreed 03-31-2011 03:52 AM
Re: SBC
 
Originally Posted by wrightway
Originally Posted by markdunlap
In the old days I had one of those, but it was a 377.
377 is a 4.155 bore

Originally Posted by markdunlap
I think a 348 is with a 3 1/4" stroke 327 crank.
3 1/4 =3.25
I believe he meant a 348ci is with a 3.25 stroke.

wrightway 03-31-2011 05:39 AM
Re: SBC
 
Originally Posted by doorracer
Originally Posted by wrightway
Originally Posted by markdunlap
In the old days I had one of those, but it was a 377.
377 is a 4.155 bore

Originally Posted by markdunlap
I think a 348 is with a 3 1/4" stroke 327 crank.
3 1/4 =3.25
I believe he meant a 348ci is with a 3.25 stroke.
Opps apparently I did not get that :oops:

garyc945 04-04-2011 02:10 PM
.060 over 400 block!? better fill it with block filler and pray.

DRTRCR22 04-15-2011 06:01 PM
Wow Prater... from reading your next thread about methanol questions, and revealing you are running dirt modified circle track, I have to strongly agree with garyc about "hope and pray" on this 60 over engine, especialy because you cannot block fill a circle track engine and keep it cool. 400s are already notorious for overheating and cracking, even on methanol. I have built and raced many circle track engines, including 400 blocks, but 30 over is about max for a GM 400 block. You probably want to start thinking about a backup engine to have ready...


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