I am not very knowledgeable in the area of camshafts and cam selection. I have a general idea about duration and lift, but thats about it! So...I seek the help of the experienced. Here is my build sheet:

350 standard bore and stroke, roller-block (need roller cam)
Brodix IK200 , aluminum, 64cc chamber heads
9.56:1 static compression
Single-plane, MPFI with LS1 411 ecm
SLP 1 5/8 Tri-Y headers


This engine will not see a power-adder i.e. nitrous, super/turbocharger. The engine will be used in a daily-driver. I don't mind a lopey or rough cam. My goal for this engine is to reach ~430 HP at the flywheel. I wouldn't consider this a budget-buildup since everything has been purchased new except for the intake/ecm/headers, so any price range is fine.

Thanks in advance

 

probably need to specify type. roller, retrofit roller or hydraulic flat tappet. i would stay away from solid in a daily driver, too much adjusting.

 

I knew I forgot something! This is a roller-block, so I need a roller cam that I can use with hydraulic roller lifters.

 

adv. duration about 280, which will be like .480 lift or so. lsa of 108 or 110. some 1.6 rockers and mathcing valve springs for this combo.

 

i think (imho based on limited research) that fuel injection works better with a higher lsa (110 or higher). Also with the roller, you can go with something like 232 dur @ 0.05 intake 242 @ 0.05 exhaust dual pattern, lift is .510 & .525 respectively. Probably need a stall or 2k or better if automatic. It should have a noticeable lope but not enough to wig your ecm out..jmo

 

Edelbrock's Performer RPM HYD Roller cam should work very well for ya. Won't like a stock stall converter thou.

www.edelbrock.com

 

I currently have a 700R4, but the engine that the cam will go in will be backed by a T5 until i can afford a T56, so no worries with the stall.

The Edelbrock Performer cam you are talking about seems to be on the spot based on what has been posted up so far. Part #2204 Performer RPM for 1987 and later roller blocks looks good, but according to Summit, it isn't "computer controlled compatible???"

 

you might want to check www.summittracing.com as well for some other brands like lunati or crane

 

Summit puts that warning in because people try to use these big cams with reduced idle vacuum on near stock motors with factory EFI tuning. I'm not up on the exact computor you're using. If you're sticking with the stock chip tuning, yes you will have problems. Especialy if it is a "Speed Density" system. Will need a complete rewrite of the fuel and spark maps and maybe some sensor changes.
If it is a "Mass air flow" system they tend to be more tolerant of cams with reduced manifold vacuum. probabily will also need fuel and spark remapping. That you'll have to look into.
Another choice worth considering is GM's LT4 "HotCam" with 1.6 rockers. Its milder, will have better idle vacuum and will make the power you want. But probabily no more. Something to consider.
Lingenfelter used a good cam wirth considering also.
Milder like the LT4 hot cam but single pattern on 112LSA 219-219@.050" with .560" lift w/1.6
rockers. Probabily still available from Lingenfelter Performance. http://www.lingenfelter.com/

 

Thanks for the information Fbird '88. I will be using the 411 LS1 ecm with this engine using MAF, and will be thoroughly tuned.

I looked into the LT4 hotcam, and the complete kit looks promising. The lift, duration and separation look close to what you guys have been recommending, and plus its a complete set so I don't have to hunt down additional pieces. Would you get the LT4 Hotcam, or do you think money would be better spent elsewhere? I'm also curious if my ~430hp is attainable using this cam.

 

Yes you can hit 430 hp with this cam. the lingenfelter cam will hit the numbers too. The Edelbrock cam should exceed that by some, depending on......
The smaller cams will work much better with a stock or near stock converter and cruise nicer in overdrive wether auto or 5 speed. You'll have to decide which is best for you. You could bump up the cr just a bit with aluminum heads but don;t get carried away.

 

Many thanks! Yeah, my CR could be higher, but I don't want to push my luck with detonation. Since it will be a street-car I want to be able to use pump-gas without worries. I think I'm gonna go with either the LT4 or one of The Lingenfelters since it will be driven on a regular basis. Again, thanks for your help!

 

200cc intake ports? I'd be over 230* duration with those big heads.
I'd keep 114* LSA for the FI. You'll be dinking around with custom chips a lot, get comfy with it.
See sig if you're not familiar with cam terminology etc.

 

heres what brodix used for those heads

http://brodix.com/heads/tonydyno.html

COMP CAMS Hyd Roller Cam
Advertised Duration 293-299
.540 Lift Int--.562 Lift Exh
112 Centerline at 108.5
COMP CAMS Hyd Roller Lifters
COMP CAMS Roller Timing Chain
BARKER 7.150 5/16 Pushrods
CROWER 1.60 Int Rockers
CROWER 1.50 Exh Rockers

 

Dyno Pulled From 2500-6500 rpm
Peak Power 568 hp at 6000 rpm
Peak Torque 542 ft-lb at 4700 rpm

That's about 130hp more than I'm looking for. That's probably a bit excessive for my application, and is pushing drive-ability for a daily driver.