Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Building a 283 into a 302 or 327
Thread: Building a 283 into a 302 or 327
View Single Post
  #5 (permalink)  
Old 10-20-2006, 07:03 AM
CNC BLOCKS NE CNC BLOCKS NE is offline
CNC Blocks Northeast
  
Last photo:
Join Date: Sep 2006
Location: NORTHEAST
Age: 53
Posts: 1,342
Wiki Edits: 0

Thanks: 0
Thanked 7 Times in 7 Posts
Quote:
Originally Posted by 302/Z28
First off, not all 283 blocks can take a 4" bore. The block needs to be sonic checked to see if it can go that far. A 327 requires a 3.25" stroke crank as opposed to the 283 and 302's 3" stroke crank. If you are after a 302 you would be much better off using a 350 block.

There is not that much of a performance differance in boring the 283 .060" as opposed to .125". The .060" bore with the 283 crank will produce a 292 and will allow enough cylinder wall material to remain.

Vince
To put a small journal crank in a 350 block would require special main bearings.
Reply With Quote