What's so great about a 4 bolt main 350 chevy?

"D.L. Man" <bravedave96.TakeThisOut@yahoo.net> wrote in message
news:9radnZwKUqxJFirfRVn-vA@comcast.com...
 > I'm in the position to pick one up for $500 and I was wondering what is
 > the
 > difference in them all?

2 bolt main = main caps are held on by two bolts each

4 bolt main = main caps are held on by 4 bolts each

4-bolts are supposedly stronger and can take more HP in super-high output
applications, but for a stock motor or anything up to 350 HP or so a 2-bolt
does just fine.

Doc<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: What's so great about a 4 bolt main 350 chevy? 

'Doc' wrote:

"D.L. Man" <bravedave96.DeleteThis@yahoo.net> wrote in message news:9radnZwKUqxJFirfRVn-vA@comcast.com... > I'm in the position to pick one up for $500 and I was wondering what is > the > difference in them all? 2 bolt main = main caps are held on by two bolts each 4 bolt main = main caps are held on by 4 bolts each 4-bolts are supposedly stronger and can take more HP in super-high output applications, but for a stock motor or anything up to 350 HP or so a 2-bolt does just fine. Doc

Actually I would say about 400 HP and about 6500 RPM or so. If you plan to exceed these levels regularly I would go with a 4 bolt block. ALso I would not supercharge a 2 bolt block either at any HP level.
 >> Stay informed about: What's so great about a 4 bolt main 350 chevy? 

I hope your not paying $500 for a bare 4 bolt block, i get them all day long
already prepped...tanked, magged, decked and bored +.030" for $350
Add another $700 and you get a balanced and assembled 383cid short block
with a Scat crank, 5.7' rods and Keith Black pistons, externally balanced
168 tooth flexplate and harmonic balancer.....

--
Mad-Dog
'79 Chevy K-10
Slightly modified
pictures can be found here:
<a style='text-decoration: underline;' href="http://mad-dog16.tripod.com/" target="_blank">http://mad-dog16.tripod.com/</a>
--
"D.L. Man" <bravedave96.RemoveThis@yahoo.net> wrote in message
news:9radnZwKUqxJFirfRVn-vA@comcast.com...
 > I'm in the position to pick one up for $500 and I was wondering what is
 > the
 > difference in them all?
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: What's so great about a 4 bolt main 350 chevy? 

"Mad Dog" <me RemoveThis @privacy.net> wrote in message
news:3hs0sqFib249U1@individual.net...
 > I hope your not paying $500 for a bare 4 bolt block, i get them all day
long
 > already prepped...tanked, magged, decked and bored +.030" for $350
 > Add another $700 and you get a balanced and assembled 383cid short block
 > with a Scat crank, 5.7' rods and Keith Black pistons, externally balanced
 > 168 tooth flexplate and harmonic balancer.....

Where can I get one for that price? Is it a long block at that point?<!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: What's so great about a 4 bolt main 350 chevy? 

Larrys Performance shop in Montebello,Ca.
<a style='text-decoration: underline;' href="http://www.larrysperformance.com" target="_blank">http://www.larrysperformance.com</a>
No, it's not a long block at that point...
It's a fully assembled short block with the cam of your choice.
They are building a zero deck 383cid short block for me right now with
4-bolt mains, 6" rods and raised ring hyperuetectic pistons with a 18cc
dish, slightly more expensive than your basic 383 stroker motor but well
worth it.
5.7" rods with a 3.75" stroke gives you a 1.52:1 rod ratio......
6.0" rods with a 3.75" strokes gives you a 1.6:1 rod ratio.....
The ideal rod ratio is 1.75:1......
my goal is to combine the high revving attributes of a 350 with the brute
torque of a 400.
For more info on rod ratio and bore/stroke ratio please visit these pages

<a style='text-decoration: underline;' href="http://www.turbobricks.org/forums/archive/index.php/t-32037.htmlio" target="_blank">www.turbobricks.org/forums/archive/index.php/t-32037.htmlio</a>

<a style='text-decoration: underline;' href="http://g.msn.com/9SE/1?http://www.dsmtalk.com/forums/printthread.php?t=88322&&DI=4711&IG=4cba10b73c884098bdc572a82562f884&POS=1&CM=WPU&CE=1" target="_blank">http://g.msn.com/9SE/1?http://www.dsmtalk.com/forums/printthread.php?t...322&&DI</a>


<a style='text-decoration: underline;' href="http://g.msn.com/9SE/1?http://www.dsmtalk.com/forums/showthread.php?t=88322&&DI=4711&IG=4cba10b73c884098bdc572a82562f884&POS=2&CM=WPU&CE=2" target="_blank">http://g.msn.com/9SE/1?http://www.dsmtalk.com/forums/showthread.php?t=...22&&DI=</a>

--
Mad-Dog
'79 Chevy K-10
Slightly modified
pictures can be found here:
<a style='text-decoration: underline;' href="http://mad-dog16.tripod.com/" target="_blank">http://mad-dog16.tripod.com/</a>
--
"D.L. Man" <bravedave96 RemoveThis @yahoo.net> wrote in message
news:8N2dnW49crtPeyXfRVn-qQ@comcast.com...
 >
 > "Mad Dog" <me RemoveThis @privacy.net> wrote in message
 > news:3hs0sqFib249U1@individual.net...
  >> I hope your not paying $500 for a bare 4 bolt block, i get them all day
 > long
  >> already prepped...tanked, magged, decked and bored +.030" for $350
  >> Add another $700 and you get a balanced and assembled 383cid short block
  >> with a Scat crank, 5.7' rods and Keith Black pistons, externally balanced
  >> 168 tooth flexplate and harmonic balancer.....
 >
 > Where can I get one for that price? Is it a long block at that point?
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: What's so great about a 4 bolt main 350 chevy? 

another great link for ya..
<a style='text-decoration: underline;' href="http://www.chevymania.com/tech/" target="_blank">http://www.chevymania.com/tech/</a>

--
Mad-Dog
'79 Chevy K-10
Slightly modified
pictures can be found here:
<a style='text-decoration: underline;' href="http://mad-dog16.tripod.com/" target="_blank">http://mad-dog16.tripod.com/</a>
--
"Mad Dog" <me RemoveThis @privacy.net> wrote in message
news:3hu0umFil5ulU1@individual.net...
 > Larrys Performance shop in Montebello,Ca.
<font color=purple> > <a style='text-decoration: underline;' href="http://www.larrysperformance.com</font" target="_blank">http://www.larrysperformance.com</font</a>>
 > No, it's not a long block at that point...
 > It's a fully assembled short block with the cam of your choice.
 > They are building a zero deck 383cid short block for me right now with
 > 4-bolt mains, 6" rods and raised ring hyperuetectic pistons with a 18cc
 > dish, slightly more expensive than your basic 383 stroker motor but well
 > worth it.
 > 5.7" rods with a 3.75" stroke gives you a 1.52:1 rod ratio......
 > 6.0" rods with a 3.75" strokes gives you a 1.6:1 rod ratio.....
 > The ideal rod ratio is 1.75:1......
 > my goal is to combine the high revving attributes of a 350 with the brute
 > torque of a 400.
 > For more info on rod ratio and bore/stroke ratio please visit these pages
 >
<font color=purple> > <a style='text-decoration: underline;' href="http://www.turbobricks.org/forums/archive/index.php/t-32037.htmlio</font" target="_blank">www.turbobricks.org/forums/archive/index.php/t-32037.htmlio</font</a>>
 >
<font color=purple> > <a style='text-decoration: underline;' href="http://g.msn.com/9SE/1?http://www.dsmtalk.com/forums/printthread.php?t=88322&&DI=4711&IG=4cba10b73c884098bdc572a82562f884&POS=1&CM=WPU&CE=1</font" target="_blank">http://g.msn.com/9SE/1?http://www.dsmtalk.com/forums/printthread.php?t...322&&DI</a>>
 >
 >
<font color=purple> > <a style='text-decoration: underline;' href="http://g.msn.com/9SE/1?http://www.dsmtalk.com/forums/showthread.php?t=88322&&DI=4711&IG=4cba10b73c884098bdc572a82562f884&POS=2&CM=WPU&CE=2</font" target="_blank">http://g.msn.com/9SE/1?http://www.dsmtalk.com/forums/showthread.php?t=...22&&DI=</a>>
 >
 > --
 > Mad-Dog
 > '79 Chevy K-10
 > Slightly modified
 > pictures can be found here:
<font color=purple> > <a style='text-decoration: underline;' href="http://mad-dog16.tripod.com/</font" target="_blank">http://mad-dog16.tripod.com/</font</a>>
 > --
 > "D.L. Man" <bravedave96 RemoveThis @yahoo.net> wrote in message
 > news:8N2dnW49crtPeyXfRVn-qQ@comcast.com...
  >>
  >> "Mad Dog" <me RemoveThis @privacy.net> wrote in message
  >> news:3hs0sqFib249U1@individual.net...
   >>> I hope your not paying $500 for a bare 4 bolt block, i get them all day
  >> long
   >>> already prepped...tanked, magged, decked and bored +.030" for $350
   >>> Add another $700 and you get a balanced and assembled 383cid short block
   >>> with a Scat crank, 5.7' rods and Keith Black pistons, externally
   >>> balanced
   >>> 168 tooth flexplate and harmonic balancer.....
  >>
  >> Where can I get one for that price? Is it a long block at that point?
  >>
  >>
 >
 ><!-- ~MESSAGE_AFTER~ -->
 >> Stay informed about: What's so great about a 4 bolt main 350 chevy? 

"D.L. Man" <bravedave96.TakeThisOut@yahoo.net> wrote in message
news:9radnZwKUqxJFirfRVn-vA@comcast.com...
> I'm in the position to pick one up for $500 and I was wondering what is
the
> difference in them all?

How can I tell if its a 4 bolt with out taking the oil pan off?
 >> Stay informed about: What's so great about a 4 bolt main 350 chevy? 

D.L. Man wrote:
> "D.L. Man" <bravedave96 DeleteThis @yahoo.net> wrote in message
> news:9radnZwKUqxJFirfRVn-vA@comcast.com...
>
>>I'm in the position to pick one up for $500 and I was wondering what is
>
> the
>
>>difference in them all?
>
>
> How can I tell if its a 4 bolt with out taking the oil pan off?
>

If it is a Post 82 or 84 Block it will have the Displacment on the
drivers side of the bellhousing flange, older blocks have a casting
number there. Newer blocks have a casting number on the middel of the
bell housing flange. Run those numbers. There is also a pad by the
waterpump that has numbers punched in it. Between the two sets of
numbers you can tell what it was orginally in, 2 bolt mains vs 4 bolts,
orginal HP & Torque Output.
Charles
 >> Stay informed about: What's so great about a 4 bolt main 350 chevy?