Running Main Bearing Inserts To use A 383 Journal Crank In a 440 Block

PROSTOCKTOM said
Well if that were true the millions of 400 SBC blocks that used/ using inserts to allow the use of the 350 main cranks would have not last 40 years.

Those Saturday night stock car and bracket racing engine have flourished at much higher RPM's than required for my intended uses.

Tom

I worked on a dirt sportsman car pit crew years ago. We ran that set-up to create 377". We beat that thing HARD every week. I saw him skip it through the infield and the telltale tach showed over 9k! Never skipped a beat. One of the fastest cars in the field every week.