engine type?
 

I am just starting on a renovation off my 2.7L 165 HP. But after dismantling it, found that size of intake on heads are smaller than they should be? Engine number is 6446290 , but i cant find it on the engine list Porsche Engine Code Resource
I think i have been sold a engine that is only 150 hp. Does anybody find what the engine number is og type. Greetings from M

Looks like your motor is a US 1974 with small port heads 150hp stock to your motor. What year is your car? Loo for the stamp for type 911/?

There is no 644xxxx engine that I know of. I believe it will be 6146290 as that is the only serial that makes sense. Type 911/92 150 HP