Originally Posted by Young Angus
I found out today from the original owner of my new coupe that he thinks the guys who did his engine put 302 con rods on the 351 clevo thats in it for some reason to increase something...what would this be?
It increases the length of the connecting rod from 5.780" to 6.02".
It increases the nearness of the piston pin to the top of the piston.
It increases the reduction in dynamic compression ratio of engines with camshafts with a good bit of valve overlap.
It increases the piston dwell time at/near TDC.
It increases the reduction of dwell time at/near BDC.
It increases the weight of the connecting rod used in the rotating assembly.
It (probably) increases the reduction of weight in the piston used in the rotating assembly.
It likely increases the controversy in discussing rod lengths and what is better/worse/best/good enough.