Rafe, Olds did have pretty stout connecting rods from the factory. We once built a tight budget circle track engine Chevrolet engine using Olds connecting rods. We offset ground the crank for the smaller Olds rods (2.100" vs 2.00") The rods held up for 2 seasons before the owner had us build a new engine.
__________________
Two 1975 455 Grandvilles &
'79 455 Trans Am
‘69 Camaro SS 396/375 (owned since ‘88)
‘67 Corvette 427/435
‘23 Lexus LS500 awd
‘20 Audi R8 & ‘25 Toyota RAV4 (wife’s cars)
‘95 Ford F250 4wd 7.3 p-stroke
& countless Jeeps & off road vehicles & motorcycles 
|