Porting in standard motor?

[Coochas]

I should know this and I can't seem to find it online.

In a standard sealed Drummond 13B, is there any porting or is it a stock block 13B? Is there any other 'work' done on these motors compared to a non-FM 13B block?

Thanks

[starfmguy]

No responses ??? So I will chip in... All the internals for a legal FM engine are stock, absolutely no porting or any other modifications to the stock engine, as built & sealed exclusively by Daryl Drummond (the sole engine builder). Of course it does have the external changes of the Weber carb & alum intake and then the exhaust header, but the guts of the engine are all stock. (& also don't "match" or "port" the intake or exhaust manifolds, they need to be raced as made). Be sure to have the 2 red-capped engine seals & the sealed twisted wire seal across the top & thru the sections of the engine.

For fine tuning, there is a little room in ignition timing but probably mainly tuning the jets in the carb (see the GCR).

Then, get in & drive the hell out of it !!!

[Coochas]

No responses ??? So I will chip in... All the internals for a legal FM engine are stock, absolutely no porting or any other modifications to the stock engine, as built & sealed exclusively by Daryl Drummond (the sole engine builder). Of course it does have the external changes of the Weber carb & alum intake and then the exhaust header, but the guts of the engine are all stock. (& also don't "match" or "port" the intake or exhaust manifolds, they need to be raced as made). Be sure to have the 2 red-capped engine seals & the sealed twisted wire seal across the top & thru the sections of the engine.

For fine tuning, there is a little room in ignition timing but probably mainly tuning the jets in the carb (see the GCR).

Then, get in & drive the hell out of it !!!

Thanks for that. I was fairly certain it's a stock block.
My car is a bone stock FM and has had a few Drummond motors in it.