BRIAN ,
Do these have piston skirt cuttaways , or a Full skirt .
Why Im asking is that they drop in a FSR OS, Magnum , Royal, ASP & Thunder Tiger
Paul Walker is said to have used a FP P/L in a FSR 40 ( refitted for wrist pin circlips )
Playing Around - The ones with piston cut outs stuff up the equation , as the FPisnt tangental - Ex at side 90 Degrees .
incidently , while we're here , the 45 FSR has differant bore stroke & liner O.D. so is not a interchange , bar front housing & suchlike.