FLA5.0 - thanks for the description -- "Original pre-85 flat-tappet blocks can be made to work with OE-style roller tappets by overboring the lifter bosses and press-fitting tall bronze bushings that extend the bores to accept the longer roller tappets"
Like I said, it's usually more practical to just start with a roller block, or use the aftermarket linked lifters.
Like I said, it's usually more practical to just start with a roller block, or use the aftermarket linked lifters.