I was doing some early morning math when I think I discovered something interesting.

These are the lift numbers I found for the LT1 and LT4.
Valve Lift @ .050"(1.3mm)
LT1 (with 1.5 rockers)
Intake .447"(11.35mm)
Exhaust .459"(11.66mm)

LT4 (with 1.6 rockers)
Intake .476"(12.09mm)
Exhaust .479"(12.17mm)

Assuming that info is correct, then a LT1 cam with 1.6 rockers installed actually has the same lift on the intake side but more lift on the exhuast side then a stock LT4 cam with 1.6 rockers

(based on valvelift/1.5(rocker ratio)=X and X*1.6=new lift numbers.

Effectively making a stock LT1's cam with 1.6 RR's:
.447/1.5=.298 then .298*1.6=0.477 intake lift
.459/1.5=.306 then .306*1.6=0.490 Exhuast lift

I dont know why I found that so interesting, but I was kinda shocked. Granted the LT4 is far from a Hot Cam

LT4 Hotcam
Lift with 1.5 Rockers
Intake .492 in
Exhaust .492 in

Lift with 1.6 Rockers
Intake .525 in
Exhaust .525 in

Just thought I would share that tid bit of info I found. Maybe someone can put it to good use.

 

I noticed the same thing as well. Almost the same cam LT1 vs LT4. meaning the biggest power difference of the LT4 is the 1.6 RR and the better heads.

 

For the full specs: