Short deck block article

[models916]

Good reading.

http://www.enginelabs.com/engine-tech/pro-stock-engines-whats-the-secret-to-those-big-power-numbers/

 

[Ronnie Russell]

Thanks, Mike. That was some great reading. Very informative.

 

[Dr Richard Kimble]

I knew Pro Stock turned some serious RPM . I always wondered how a 500 cid bbc could turn 10.000 - 12,000 .
Now I learn that they're doing it by adopting a huge bore , with a 3.50"-ish stroke ( seems that I've seen that before ? ).
So the big announcement , the big "discovery" , is that they found that decking the block down , so they can use a shorter rod , is helping make power ( so much for the late Smokey Yunick's commandment ) .
1/4" - 1/2" shorter stroke than the block was intended to use , and they discover that they need shorter rods ?
no schitt Sherlock

sorry
sometimes I find my self filling in the blanks in these articles

 

[Iowa 409 Guy]

10#----.01 seconds.... Amazing

 

[RCampbell]

We cut the deck on a bbc .800....stroke was 2.90...bore was something like 4.565. The hemi decks are cut .300 to .500. Never considered it with a 409.