198 vs 225 and 170 general question.

[Sussmad]

I only hear about the 225 and 170; what's with the 198 (I am looking at 71 valiant)? Is it's reputation held as high as the others?

 

[66aCUDA]

Its a Great engine. Still a slant 6, Just made 4 years 70-74. Basicly its a long rod 225 with a different crank. Rods are desired for making long rod 225. Crank can be used on a 170 for racing. Other than the rods and crank everything else is a 225.
Frank

 

[cudaspaz]

Had a 198 in my 71 swinger and it ran like a raped ape.

 

[Saint 6]

Read Doug Dutra's article http://www.slantsix.org/articles/stroking/stroking.htm

You may have the most desirable slant six to start a killer performance project. It's exactly what I'm doing, long stroke 225 using the same block (225 and 198 are same block), 198 connecting rods, 2.2L turbo K-car pistons.

Good luck with your sixer!