High tension leads

does anybody know how long SR20DE ignition leads are? im talking about the part the you stick into the spark plug hole. the other day i picked up some ignition leads and when i tried to put them in, i noticed they were too long and would stick out of my spark plug hole. i brought one of my original leads with me to the store only to be told that they were CA18 leads, and the leads they had given me in the first place were for an SR. it would help alot if somebody else with an sr could tell me how long their leads are. the leads they gave me are a tiny bit under 13 CM long, measuring from the part that fits into the top of the head to the bottom where it meets the spark plug.

id tell you if my engine wasnt at a shop now

how wack is that