T/A lt1

I am changing setups in my daily driver b/c I am buliding a street/strip warrior I am currently running a Hotcam Kit that has done it's job for over a year and the car has gone 12.37@109mph and 11.41@119mph on a 150shot with 3.42's and a 3700lb raceweight. Well Im just ordered a set of 4.10's, a 3600 Vigialnte and am contemplating on which cam to choose. The engine is a 355" LT1 with a balanced rotating assembly and Weisco pistons. The heads have a minor cleanup portjob so I need some advice on which Hydraulic roller will make me the most power on motor and on a 150shot. I am thinking something in between the ccXE224-230 and the GM847 or cc306ish. I want to be able to run 11's on motor and 10's on the gas w/o sacraficing all of the driveability. I called Cam Motion and they reccomended a custom grind 227/234 556/576 112 L/S which I may order but just need some more opinons from people who have run a similar setup. Shoot me some ideas. Also can I run a big enough spring in the stock valve spring pocket? I will be running an AFR revkit and Titanium Retainers with this setup. Thanks Guys Later

WS6T3RROR

well i'll just cut through the bull and tell you that for max effort a mild port cleanup isnt going to be what you want imho. but maybe its better than i imagine so throw us some flow numbers that'll help us figure out where we need to be on the lift. we'll need to know CR too. but i'll toss off and take the first stab at it. 3192 intake lobe thats 224* with .605" lift. and a 3194 exhaust lobe thats 236* with .624" lift. i'd have it ground pretty much as comp sells its shelf grind for nitrous. 114lsa not sure what their icl is on it but i'll just throw out 110, i just dont like the idea of 6 degrees advance, if thats a bad idea somebody will chime in. your goals may be a bit high for your current port job. whether what i've said will work well depends on your CR and how well your heads flow. and since you said max effort i'll just throw out that you probably wont get by with stock valve pockets at all with this setup and you can throw away your stock lifters too pretty much oh and you'll probably need comp pro mag rockers..... these lobes are VERY aggressive, but i like em. that cam is just a shot in the dark with current the information though. i'm sure jon or bret will have something to say, take their advice over mine... they do it for a living.

T/A lt1

The motor has 11.1 compression and I won't be pulling the heads unless I hve to. Maybe I came across the wrong way with Max effort but i meant max effort for my setup. I know 11's will be attainable with the heads I have on the motor and 10's with n20 but I only want to put one cam in and not swap 2-3 to find the right one. I will be installing the 4.10's and I should be right close to 12.00's with my current setup. I ran 12.30's in crappy weather with 3.42's. I know people with the Hotcam that have gone 11.80's and the the Crane 210-224 11.40's on totally stock heads but I don't want to strip my car out either. I don't have flow #'s but the heads are not stage3 CNC heads for sure. I am just looking for someone who has done something close to my setup Thanks and keep them coming. Later

kmook

If your looking for someone that may have done what your looking at doing youll have more chance in LT1 Tech. Also general 'what do you recommend' posts should be posted in a Gen Tech forum.

Moving.

T/A lt1

You guys should name Advanced Tech "Stroker Tech" Those are the only questions you guys want to talk about. Well I have had 2- 383 strokers and they were both junk. They couldn't hold a light to my little Hotcammed 355" on the spray and neither lasted half as long. If you guys don't know the answer you move it to LT1 tech. I know more about engines than alot of guys here and I ask a cam reccomendation question for advanced techs not for bolton guys and it gets moved. So I will quit asking anything and just stick with what I already know Thanks for nothing.

4drLT4

I feel for ya brother...

Anyway, I'm close to completing a 398cid max effort hydraulic build myself.

The cam we chose is pretty radical. A CompCams series 3194 lobe...230/245 .622/.640 114lsa

Springs we went with are the Comp 914's. Not only running a Rev-kit...but also a stud girdle. A few more cubes than you're going with, but a fair comparison nonetheless. Should have it in the Impala within a weeks time. I'll let you know how I make out.

Grease

I have a GM847 cam with mildly ported LT1 heads on a stock bottom end. My heads were milled quite a bit before I bought them so I ended up with 11.86:1 compression ratio. The car is surprisingly easy to drive, makes alot of power and traps 116-117mph in the 1/4 mile. Its a great strip/street car

T/A lt1

Thanks guys I think I am going to go with a CCXE 230-242 544-576 113 L/S. I will let you guys know what it does. Later Clint

4drLT4

Clint...just to add a comment,

It's critical that you know what your heads are doing, in order to match a cam to it. You should really make sure of this before you make your final choice.

Good luck....