273 Engine Question.

BasinStBlue · Nov 23, 2021

Any differance in 273 stock heads between 64 and 67. Thanks

64 Dart 270 · Nov 23, 2021

BasinStBlue said:
Any differance in 273 stock heads between 64 and 67. Thanks

64 has a different angle between the head and intake. So to use 64 heads, you need 64 intake and vice versa for 67.

valiantwagonguy · Nov 23, 2021

In 67 they went from 57cc to 60cc I believe

toolmanmike · Nov 23, 2021

There are a handful of casting numbers between 64 and 67 but 64 and 65 are the same and 66 and 67 are the same. In 68 they changed to open chambers.

Professor Fate · Nov 23, 2021

64 Dart 270 said:
64 has a different angle between the head and intake. So to use 64 heads, you need 64 intake and vice versa for 67.

Bolt angle changed, that is!

BasinStBlue · Nov 23, 2021

Thanks you guys, GREAT HELP

dart4forte · Nov 23, 2021

920s are the good head. You can also go with a 302 Swirl port as well.