We have had for years a Ford naa with what
appears to be a later motor in it as it has
a spin on oil filter that is made right on
the block, no adapter as most have. We
recently bought a 661 and the first thing
we noticed is the motors sound much
different especially under load. Got me
wondering if were different cams used over
the years or in different applications etc.
appears to be a later motor in it as it has
a spin on oil filter that is made right on
the block, no adapter as most have. We
recently bought a 661 and the first thing
we noticed is the motors sound much
different especially under load. Got me
wondering if were different cams used over
the years or in different applications etc.