K member swap

mopar1962 said
use the schumacker mounts . a slant 6 k-frame is strong as a bigblock k-frame, there isnt any strength difference, when ya call schumacker ask them. measure the torsion bars first as the slant 6 tbars will give the front end good rise if you race it, Ive seen factory slant 6 t bars that were thicker than bigblock cars frrom the factory, the rules in racing is use the slant 6 torsion bar for small blocks and the smallblock torsion bar to a bigblock.

Factory \6 A-body bars are .830" in diameter or for heavy duty applications they are .850" in diameter the same as the light duty small block bar. Heavy duty small block bars are .870" in diamter and big block A-body bars are .890" in diameter. If you saw a \6 car with a bar bigger than .890" some one swapped it out, it wasn't from the factory, I could believe a factory screw up that wound up with some other factory diameter bar but not one bigger than the .890" bar. Also, remember B/E and C body cars have longer bars so they have to be bigger in diameter than an A-body bar to have the same rate. You can't compare diameters between the body styles.

If the car is close to 100% race than staying with the small bar is may help weight transfer but if it's mostly street driven with an occasional trip down the strip go with the bigger bar, you will be much happier with the ride and handling.