427 tall deck

Old 02-15-2010, 12:56 PM
  #1  
bigcrunch
Junior Member
APPRENTICE
Thread Starter
 
Join Date: Mar 2003
Location: Georgia
Posts: 24
Default 427 tall deck

I am starting to look around for a BBC 427 tall deck truck motor to use for my spare setup.
The crank and block is what I want.

What years had forged cranks and 4 bolt main?

thanks,,,,,,,,,,,,,,,,
bigcrunch is offline  
Old 02-16-2010, 04:35 PM
  #2  
zipper06
Senior Member
RACING JUNKIE
 
Join Date: Jan 2006
Location: La.
Posts: 2,890
Default

This site list the casting #'s for the 4 bolt main blocks, i think all the 4 bolt main truck blocks had a steel crank but not sure..

Zip.

http://wildmusclecars.com/muscle-car...sting-numbers/
zipper06 is offline  
Old 02-27-2010, 04:47 PM
  #3  
bigcrunch
Junior Member
APPRENTICE
Thread Starter
 
Join Date: Mar 2003
Location: Georgia
Posts: 24
Default

anyone know if all tall deck 427s had forged cranks?
bigcrunch is offline  
Old 02-28-2010, 07:47 AM
  #4  
markdunlap
Senior Member
DYNO OPERATOR
 
Join Date: Jan 2004
Location: central Illinois
Posts: 459
Default 427 tall deck

All 366 - 427 truck tall deck blocks had 5140 forged cranks for heavy duty use in 2 ton trucks.
These are not as strong as current 4340 forged cranks however. And they are 20? years old before you get to them. The real value of a tall deck block for bracket racing is to use a 4.250" srtoker crank and make a 496. Also the free 4 bolt mains. Remember they cause header clearance issues in stock chassis cars and aftermarket heads with raised exhaust ports make it more so.
markdunlap is offline  
Old 03-01-2010, 01:18 PM
  #5  
bigcrunch
Junior Member
APPRENTICE
Thread Starter
 
Join Date: Mar 2003
Location: Georgia
Posts: 24
Default

Do 366 blocks use the same block core?
can they be bored to 4.310?
bigcrunch is offline  
Old 03-01-2010, 02:15 PM
  #6  
markdunlap
Senior Member
DYNO OPERATOR
 
Join Date: Jan 2004
Location: central Illinois
Posts: 459
Default 427 tall deck

Leave the 366's in the junk yard. Only thing that is of use is the crank. Core size is smaller than 427.
markdunlap is offline  
Old 03-02-2010, 07:28 AM
  #7  
oldandtired
Senior Member
RACING JUNKIE
 
oldandtired's Avatar
 
Join Date: Dec 2008
Location: Sugar Hill, GA
Posts: 1,365
Default Re: 427 tall deck

Originally Posted by markdunlap
Leave the 366's in the junk yard. Only thing that is of use is the crank. Core size is smaller than 427.
x2. You would have to sleeve it to get to 4.25 (or more)
Dave
oldandtired is offline  
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -