154 --> 184 block compatibility

Mon Sep 23, 2013 9:50 pm

I want to say I've read this here in a search, though couldn't find it this round.

Can a 154 block be used for a 184 application given its dedicated starter motor? Does it have to have the proper flange and are the starter mount bolt holes in need of tapping?


Thanks-

Re: 154 --> 184 block compatibility

Mon Sep 23, 2013 11:18 pm

The block can be used with out modification. Will have to swap over other parts though for the 184 specific application.

Re: 154 --> 184 block compatibility

Mon Sep 30, 2013 9:44 pm

The 154 block has the geared starter mount. It has a cover plate that's bolted on. I'm not sure where they get the 18.4 hp from the 15.4 hp of the 154. I think the zenith carb was an upgrade but I can't remember what the other upgrades were. My first 154 has the upgrades done to it when they did the refresh. I think another upgrade was the dome high compression pistons. I don't think the valves were touched in the horse power upgrade so the 154 block should work.