Technical Hot 409s: Who has them or has built them in the past?

I will also let you know how they respond to new injection systems and the electronics.
The nice looking Engine above looks like one Worlds new blocks. Kinda nice that they use a BBC water pump and cover.

 

Calculations made from Walace Raceing site
Piston weight calculations 700 grams 3.5 stroke 6.1 rod 6000 rpm=2761 lbs 1100 grams 3.5 stroke 6.1 r0d 6000 rpm= 4339 lbs 700 grams 4" stroke 6.1 rod 6000 rpm= 3156 lbs
Piston weight is killer.

 

That's a BWR (Bob Walla Racing) block (not a World casting) and heavily modified BWR heads. The blocks retain the W-pump, but can be setup to use either the W or BBC cam spacing and covers.

 

It's very cool that they are making new blocks for these engines. I didn't know Bob Walla was making his own blocks