427w small block ford rev potential

[Jerry Clayton]

The biggest drawback to using the 351w at those speeds are the bearing speeds--with a 3 in main-------
now you can get a Dart with the Cleveland main size or you can build up something with the 289/302 size----
The Dart bigger bore smaller main size with the shorter stroke can be run well past 8500

[MAStuart]

Undy I dont think that Ls7 would last even 10k at a constant 7000 rpm and max hp. On the road that motor will not even average 100 hp for 100k miles and at a lot lower rpm. Some times they have a hard time making a stock car engine even last 500 miles Mark