Editing Identifying Chevy engines (section)
Jump to:
navigation
,
search
==396 block boring== Some 396 blocks will take an overbore to 4.250". One way to tell if the block has sufficient metal to do this is by removing a center freeze plug from the side of the block, then see if a ~1/4" wooden dowel (a pencil will do) will fit in between the cylinder jackets. If it fits the walls are probably not thick enough to bore to 4.250". {{Note1}}This is not meant to be a replacement for sonic testing the bore thickness. It is only to judge whether the block is a candidate for sonic testing. ===Tall deck BBC=== The 10.2" deck height tall deck (TD) BBC was made in two different sizes: 366 and 427 cid. These engines were made to stand up to heavy duty use like bus and dump truck, etc. right up to where a diesel would be used. The tall deck height was to facilitate the height of the four ring piston used in the TD BBC engines. The bottom ends were forged and the rods were heavy duty-and heavy in weight. These engines can be made into good performing engines without going to too much trouble or expense. '''[http://www.hotrodders.com/forum/cheapo-bbc-505-tall-deck-grunt-motor-164014.html#post1160950 Here]''' is a thread showing a budget build up of a 427 tall deck BBC. If the engine is assembled, the stock intake had two thermostats on it and the intake is also wider due to the taller decks. The distributor is different and may have a different oil pump drive arrangement. One of the easiest ways to tell a tall deck BBC block from a standard 9.8" deck height BBC block is to check the distance from the top water pump bolt hole to the block deck. A standard block (below left) will have very little space between the hole and deck; a tall deck block will have around 1/2" between the hole and deck (below right). [[File:454 deck.JPG|355px]][[File:Bbc tall deck.jpg|305px]] <br style="clear:both"/>
|
Editing help
(opens in new window)
Personal tools
Log in / create account
Namespaces
Page
Discussion
Variants
Views
Read
Edit
View history
Actions
Search
Navigation
Main Page
Recent changes
Random page
Help
All articles
Start a new article
Hotrodders forum
Categories
Best articles
Body and exterior
Brakes
Cooling
Electrical
Engine
Fasteners
Frame
Garage and shop
General hotrodding
Identification and decoding
Interior
Rearend
Safety
Steering
Suspension
Tires
Tools
Transmission
Troubleshooting
Wheels
Toolbox
What links here
Related changes
Special pages
Terms of Use
Copyright
Privacy Policy
Your Privacy Choices
Manage Consent