Inliners International Forums General Discussion Engines GM 4 cylinders 151 153 181

So what do plan on using yours to do? Short track racing is very demanding and specialized. A 153/181 would fit anywhere the RWD 151s fit. I have a 181 crank in my 153. It comes out to 170 something CI. All the heads and cranks interchange. Pans, timing covers, and timing gears swap and cams do somewhat. The RWD 151s I have seen have the same bell housing pattern as late L6s, 90% V6s, and V8s. Lots of options. A 153 would bolt into a 65 Avanti or Lark. No Limits!