Sadly yesterday during testing one of my connecting rods decided it didn't want to be in the motor anymore about 5 laps in. I was exiting "Riverside Corner" at Buttonwillow and hard on the throttle. The engine wizzed and BOOM! lots of debris out the back end. This motor served us well for the last 4 years, and had a lot more miles on it that it probably should have.

When I lifted the hood....


This is what the track crew found on the track. About 5 pieces of block, 6 pieces of piston, a couple bits of oil ring, the rod cap and a big piece of the connecting rod.


Luckily one of the other guys there was nice enough to let me borrow his Maserati for a bit! What a great car (the owner getting out after filling up after my run).




So sadly, no data or testing done on the new sway bar, and the car will be jack-standed until after SEMA and the next drivetrain is settled on.

Was that an aluminum rod engine?

factory forged.

Stock rods, continued high RPM use Or should I ask how high in RPM where you twisting its tail? Are they 383 or 440 rods also?

Solid roller+ stock bottom end= roll the dice! Build a 400/512 next Dan!

Ouch! Sorry to see the damage.
When a rod lets go, it breaks lots of motor parts with it.
Check for bent valves in that cylinder, etc.

With the $400 aftermarket H-beam rods available now-a-days, many of us no longer race factory connecting rods.
They only last so long...