i have broken oem rods at 2500/3000 rpm  a good friend broke a NEW 427SIDEOILER OEM SHORT BLOCK NOT rebuilt right from a ford dealership wiped block/crank/ every thing  the block never saw 3500 rpm  take a mic. and measure the web 1/2 inches below the rod pin  not only millions of cycles  if you look at enough of the you will find a paper thin web why chance breaking everything when good parts are finally available  yes i used the rods available in the 60s when anything better was REALLY expensive!!  on 1/2 mile paved track also picked up 1/2 428crank with damper/ parts of rds!!! broken oem rods just cost way too much to rebuild!! P.S.  at the end of the back straightaway the parts are really HOT!!! penny wise pound foolish??  today it is so nice to have good  parts where needed at a reasonable price  short of really expensive rods i like molnar  make your own good luck

   building hi-rise ex headers

 in early 60s bored a 352 1/8 and used 3.50 crank and jahn's pistons with a lot of compression cam was isky roller with two ears on one side of lifter and one ear on the other to attempt to keep the lifter in place  hi-po 352 heads    the thing would rev. like hell and was loud as hell  rollers didn't stay put and  could break any oem rod  -friend hit throttle in garage a little to much blew clutch disk without trying-!!    would like to see this project complete   please use a good aftermaket rod!!  myself and many friends lost a lot of good old motors in the day as  many rods break 1-11/2 in below pin   if you measure the web in the rod (thickness) you will scare yourself lemans rods too! good luck -oldiron. fe

2x cpt.cj dont miss netflix shelby american(title) original pics/interviews gurney,andretti, hm, shelby, many builders craftsmen mechanics ford special ops. remember shelbys great driving skills in the 50s  not only gt-40s the cobra daytonas winning the gt class and 350r beating corveets and ecoboost winning i think in 2006