ONLYA4.8L

Im considering this cam with my 2800 stall 6 liter heads... Need some input and help....
LS1 XER273HR
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 2,000-7,000 RPM
Intake Duration at 050 inch Lift: 224
Exhaust Duration at 050 inch Lift: 230
Duration at 050 inch Lift: 224 int./230 exh.
Advertised Intake Duration: 273
Advertised Exhaust Duration: 279
Advertised Duration: 274 int./279 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.581 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.588 in.
Valve Lift with Factory Rocker Arm Ratio: 0.581 int./0.588 exh. lift
Lobe Separation (degrees): 114
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Grind Number: LS1 XER273HR-14

TurboBerserker

iTrader: (1)

NA or NOS? Could use a tighter LSA imo -- maybe a 112, imo.

That's a pretty aggressive came for a 4.8 as well. Maybe a 9 on a scale of 1-10 (10 being berserk).

ONLYA4.8L

I want it n/a but I still want to use a small shot of NOS if I want to..

ONLYA4.8L

Well my truck is only gonna come out on the weekends... I am getting a dd honda civic.. sometime me and my buddies go on road trips... Or trips while racing I should say..

TurboBerserker

iTrader: (1)

I think that cam will take major tuning and is probably a lot bigger than you really want. Hard to tell over the internet, but let me put it this way: Look at my cam and look at the cam you are talking about -- then look at my cubes and yours Granted I'm running a turbo so am probably at the smallest end of the performance cam range for a 408, but even so, the cam you're looking at is almost the same size.

If it were me, I'd look at something in the 210/218 range on a 110-112 lsa. Something like Vinci's ASP-Kicker

ONLYA4.8L

What about any of these?
LS1 XR265HR
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 1,200-6,000 RPM
Intake Duration at 050 inch Lift: 212
Exhaust Duration at 050 inch Lift: 218
Duration at 050 inch Lift: 212 int./218 exh.
Advertised Intake Duration: 265
Advertised Exhaust Duration: 271
Advertised Duration: 265 int./271 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.522 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.529 in.
Valve Lift with Factory Rocker Arm Ratio: 0.522 int./0.529 exh. lift
Lobe Separation (degrees): 114
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Grind Number: LS1 XR265HR-14

LS1 XR265HR
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 1,500-6,800 RPM
Intake Duration at 050 inch Lift: 212
Exhaust Duration at 050 inch Lift: 218
Duration at 050 inch Lift: 212 int./218 exh.
Advertised Intake Duration: 265
Advertised Exhaust Duration: 271
Advertised Duration: 265 int./271 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.558 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.563 in.
Valve Lift with Factory Rocker Arm Ratio: 0.558 int./0.563 exh. lift
Lobe Separation (degrees): 115
Intake Valve Lash: 0.000 in.
Exhaust Valve Lash: 0.000 in.
Computer Controlled Compatible: No
Grind Number: LS1 XR265HR

ONLYA4.8L

heres this 1 too....
LS1 XR275HR
Cam Style: Hydraulic roller tappet
Basic Operating RPM Range: 1,800-6,800 RPM
Intake Duration 050 inch Lift: 222
Exhaust Duration 050 inch Lift: 224
Duration at 050 inch Lift: 222 int./224 exh.
Advertised Intake Duration: 275
Advertised Exhaust Duration: 277
Advertised Duration: 275 int./277 exh.
Intake Valve Lift with Factory Rocker Arm Ratio: 0.566
Exhaust Valve Lift with Factory Rocker Arm Ratio: 0.568
Valve Lift with Factory Rocker Arm Ratio: 0.566 int./0.568 exh. lift
Lobe Separation (degrees): 112
Intake Valve Lash (in): 0.000
Exhaust Valve Lash (in): 0.000
Computer Controlled: No
Grind Number: LS1 XR275HR-12

TurboBerserker

iTrader: (1)

You want a little more overlap in an NA motor for best performance (which is why I suggested the 112lsa). I messed up the durations on that Vinci cam above (corrected now) -- I still like it better than either cam above, but they are pretty close except the LSA.

ONLYA4.8L

This 1...
DUR @ .004" 272*/280*
DUR @ .050" 210*/218*
LIFT .551 / .551
OVERLAP 52*
LSA 112*

TurboBerserker

iTrader: (1)