Hey guys, I have this cam I got from a friend a few years ago, and it was in a LT-1 396 combination behind a 6-speed. Here are the specs, I was pondering using it with my 383 SUPER-RAM/ ported AFR 190 head combination behind my T-56, and 3.73 gear rearend. I was considering this or the LPE 219 cam that I already have as well These are exactly what was on the cam card that came with the cam ZZ409-15 SPECS:



TPIS ZZ409-15
1987-97 SBC HYDRAULIC ROLLER CAM
CAM CARD
Engine: 1987-97 SB Chevy
Grind #: ZZ409-15
Core: 4714 ym sadi
Lobe size /HT IN: 1.075 EX: 1.075
Lobe size for SMALL BASE CIRCLE 396 cams ground on a 1.050" base circle, which is about a .050" reduction and have never had any problems.

Cam advance = (+ 4 degrees)
Intake & Exhaust
Lobe Separation = 115.1 cam degrees
Valve overlap = -4.9 crank degrees

INTAKE
Valve Opening = 1.3 degrees BTDC
Lobe centerline = 111.1 degrees ATDC
Valve closure = 44 ABDC
Duration @ .050 = 225.3 Crank Degrees
Cam lobe lift = .34591 Inches
Net valve lift = .51886 Inches @ 1.5:1 ratio
Net valve lift = .55345 Inches @ 1.6:1 ratio
lobe area = 26.98 IN Degrees

EXHAUST
Valve Opening = 51.3 degrees BBDC
Lobe centerline = 119.1 degrees BTDC
Valve closure = -6.2 degrees ATDC
Duration @ .050 = 225.1 Crank Degrees
Cam lobe lift = .34583 INCHES
Net valve lift = .51874 Inches @ 1.5:1 ratio
Net valve lift = .55333 Inches @ 1.6:1 ratio
lobe area = 27.02 IN Degrees


All comments on this cam and its feasibility in NA 383 SR combination. What I really want to know is how the larger 115 LSA work in a NORMALLY ASPIRATED setup, will it hurt any, or help any? Is it just better off running the PROVEN LPE 219 cam, and just be done? Another reason for considering this ZZ409-15 cam is I want to be able to shift up in the 62-6400 RPM range. Thanks for all responses.

 

I do not like the wide 115 degree lobe seperation. This will make the cam somewhat lazy. The duration at .050 is only 226 degrees. This cam in a 383 is on the mild side.

Between the ZZ409-15 and the LPE 74219, I would opt for the 219 cam.

My buddy ran the LPE cam in his 383 Vette along with ported Edelbrock heads and a MiniRam. The car ran consistent 11.60's!

The LPE cam is still one of the most versatile cams out there.

www.geocities.com/dzperf.

 

Thanks for the response, I was figuring that someone would answer this for me. I guess I will install the LPE 219 cam then. Thanks again.

 

i kinda like that zz409 cam. the Lpe acts bigger than a 219 but i think the duration on that 409 will make good power.

either way it will work. and that 115 lsa will be easier to tune

 

Thanks Orr89RocZ, I would appreciate a PM on some further details on your opinion of the 409 with this 115 LSA combination. I like the LPE 219 cam, but really wanted a little bit more RPM cabability, so that is why I considered the 409. Thanks again guys .