I was wondering what was GM calling the LT4 Hot Cam rpm range?





Thanks
Brian

 

Right off of my LT4 Hot Cam Spec sheet: ENG. RPM Range 1500-5500rpm There ya go. That is what they are calling for.

 

holy *****, you have a spec sheet? can you give me all the info on it? my cam didnt come with a card and i've never been able to find specs like ivo, evo, centerline, etc. thanks!:hail:

 

Yes please send a copy of the spec sheet, mine didn't come with one either.


Brian

 

Its HOLY HAIRY ***** to you Mr.! J/K I'll just post the cam spec card! I have no way of getting it up on the internet, sorry. Here ya go. Eng Type: SBC
Lifter Type: Hyd Roller
Eng RPM Range: 1500-5500 rpm
Engine Family: 1986 present Gen 1 and Gen 2 engines
Specifications: INTAKE EXHAUST
Lobe Lift: 0.328 .328"
Gross Valve Lift: .525" .525"Measured@valve w/1.6r
Lobe Centerline: 109degree 115degree
Duration@.006": 272 281 Duration measured@ cam lift
Duration@.050": 219 228 Duration measured@ cam lift
Rocker Arm Ratio: 1.6 1.6
Valve Adjustment: zero lash zero lash
Lobe Seperation: 112
Valve Lift with 1.5 rocker ratio is .492"

Spring Recommendation Part Number: 12551483
Outside Diameter: 1.337"
Installed Height: 1.780"
Seat Load: 101 lbs
Solid Height: 1.215"

Recommend using 10212809 spring seat and 10212808 retainer.

Well, that is all that is on there besides the cam kit's part#! Hope it helps-Bryan

 

thanks. have you ever seen the cam timing specs for this cam (evo, ivo, etc)? apparently gm is very secretive about it, they wouldn't give it to me.

 

nope! sorry