Well here,s my 2%.I have a 51 and I used a 79 camaro clip.Cost of the clip in the bone yard was $50 Now I have front dis power brakes, powersteering using a 84 tilt steering column.the subframe is already for V-8 CHEVY.If it's a chevy KEEP IT ALL CHEVY.Parts are cheap everwhere.It took 6 hours to cut off the old and put the camaro subframe on.The pacer an mustang IFS I say set to low to the ground.Plus there a little tooooo light,for a big block.Boy will I get hell for that one.But it,s your $$$$$.Remmember a CHEVY is a CHEVY ,not a **** or pacer.Why are they all is the bone yard.I close my case.Think it over,in the long I say you"ll go with the CHEVY idea.I told my wife trust me,now it's 37 years.