Small Block & Big Block Chevy Specific - New heads & cam, watcha think?

Ive been wanting to upgrade the 1969 heads on my 327 (maybe a 350)So I found a good deal on some ported & polished sportsmanII heads and I went with it. They are straight plug 200cc, 64cc, with the 1.437 dual springs. I had enough credit with jegs for a new cam so I called up lunati and asked them what they reccomended. I was told to use the voodoo 268 but I thought it was a tad bit too small so I asked if I could run the 07102 and the guy said I could so thats what I went with.

Specs Are:
Adv. Duration: 285*/285*
Gross Lift: .507"/.507"
LSA: 108*
Rpm Range: 2200-6200

I didnt want to go too bigh on my poor little shortblock with stock cast pistons and I needed something I could drive on the streets on the weekends since that almost the only time I use it. Maayyybeee Ill take it down the track a pass or two.

Oh yeah, should I do the heads first and then the cam or install the cam and then swap the heads?
Ill be tearing it apart tomorrow so I might have some questions for you geniuses jejeje

I think you went too big on the heads. 200 cc runner is on the big side for a 350 but for a 327 that is defintely too big for the street. 180 runner is the max I would go on a 327 and 195 for a 350 on the street. I would of recommended you go with 195 runner trickflow's on 350 and some 170's for a 327. You never know though, try out your combo it might just work together.

Big heads and a mild cam. might run alright

I think you went too big on the heads. 200 cc runner is on the big side for a 350 but for a 327 that is defintely too big for the street. 180 runner is the max I would go on a 327 and 195 for a 350 on the street. I would of recommended you go with 195 runner trickflow's on 350 and some 170's for a 327. You never know though, try out your combo it might just work together.

nothing wrong with 200cc heads on the street at all, as a matter of fact i've had a combo similar to the one listed but mine was Dart 200cc Iron Eagles with a similar hyd. cam it it ran high 11's in an 84 Regal...should run great in this car.

how much stall converter are you running, that cam will like a minimal of 3000, and no more than 4500..

what is the CR ratio of that engine?

you will need at LEAST 10.5:1 comp to run that cam, which im betting you dont have with the stock pistons and those heads

I understand you don't want to rev out the stock internals, but the fact is that kind of engine makes it's power at higher rpms when you have good heads/cam/compression. I'm guessing you told Lunati you didn't want a high rpm application and they recommended this cam to you with that rpm range. You can still make good power from it i think, after all they are professionals. Should be a healthy small block.

87silverbullet- I know the heads are too big but I couldnt pass up the deal. With everything needed to do the job I havent even hit $950. Id have to wait a looong time for a good deal to come up on some afr's and then hope I can afford it at the time plus buying the cam and installation pieces. With me, I gotta spend the money when I have it or usually some BS happens and I have to spend it elsewhere. Just how my life has been so far...

dedon500rt- Im using a t-5 from a third gen.

slvr98camaro- I do not know for sure what the CR is on the engine. After doing some research a while back I found that the engine I have usually came in at about 9.5:1 I also told the tech from lunati that I didnt know the CR and he said this one would still perform well.

Levi1110- Yes, that is what I told lunati and he recommended a smaller one b/c he said the RPM ratings on their cams are lower than what they truly should be.

So, in what order should I install all this stuff? Nobody has answered that one yet....

Why not do both? If you do just the heads you have to take the intake off, then when you decide to do the cam you have to take the intake off again. Just do both of them.

They spec'd the cam to your heads so go ahead and just swap it all out man. Hope it turns out good for you.

Man the car should run great, 200cc is not to big, although it is as much as i would want on a street car stock cube 350. The cam specs sound good to, i think it should run great if the stock short block will stand it (depends alot on mileage). What intake and carb are you running, that to will make a difference on how well the heads and cam perform. You need to do the cam and heads at the same time, your springs on your heads should be matched to cam, and your stock heads probably wont stand the lift. Also make sure you run hardened push rods, and i assume the heads have screw in studs and guide plates. Any other questions just holler. Good Luck.

Im using a performer RPM intake with a performer carb(600 or 650 cfm,dont remember which)
I got some new hardened pushrods for it but now I need new rockers b/c the crappy stock ones wont fit the big ass springs. I was going to get rollers anyway but i was hoping the stockers will hold me over.

I was comparing these heads to the old ones and they are huge! Looks like I might even pick up the CR cause it looks like the new one have been milled a little.

Huge compared to stock don't mean much man. You could stand a bigger intake like Victor Jr, but the RPM will be good with a 1 inch spacer on it, i would invest in a bigger carb for sure, the new heads and cam will require more air/fuel, the little 600 will struggle. I would suggest a 750 when you get the chance. You will be happy with it, should be a big change.

I have sportsman2 straight plug heads Im running a weiand team G intake with a 1 inch moroso spacer and a bg 850 demon. i like it ...Prior to that it had a weiand tunnel ram with 2 holley 450 cfm carbs but at the suggestion of the local police I removed it due to it blocking my view.

Good stuff, i would of had to of kept it up there though, i have a severe issue with law enforcement though, not because i am a criminal or anything, but i have my reasons.

streetrodz1, I feel ya on the carb issue. I want to get a new one asap but I just had to buy the roller rockers and Im done putting $ into this thing for now. I have found some good deals on craigslist so Ill just have to keep looking. I did find out that my old cam was a comp cams Magnum 280H. So im not stepping up as much as id like to but at least its up some.

steelcity, what vehicle is this in?

If this is a 327 with flat top pistons and your heads have a minimum of 64CC chambers your compression is just under 9.1cr, The 200cc heads will run but due to the runners they will run much better at a higher RPM or bigger cubed engines like a 383 or 400, I would as suggested earlier of something around 170ish runners for the street. On the note of the cam, this is a big cam and with a 108 centerline this cam is pretty much meant for the strip, it will be radical and the idle will probally be somewhere around 1000+rpm in order to idle. The max you would generally want for a street cam centerline is a 110. The shorter the centerline (also less vacuum) the more defined where the power band is, the wider the broader the power band is (better street manners). So unless this car is going to be pretty much a dragstrip only car I might suggest sending the cam back and doing an exchange, (Jegs will do the exchange) If you have the small popup pistons in the 327 that would give you 10.25Cr, with this compression the 60103 cam would be good, if you have the FT pistons then the 60102 cam would be better suited. Bigger is not always better! That cam may run best at wide open throttle from a get go, if your out cruising on the highway at 65 and some mustang pulls up to you and wants to race you will probally have to go from 5th to 2nd in order to get in the zone with the cam and as well you will probally need some good gears and you gas milage is going to suck big time.

As for the tech support of some of these companys in choosing a cam, usually giving them proper info on what you have is a start, and asking them what they recomend, if you ask them if this cam will run any idiot can say it will run, question should have been asked is how it would run with this cam and how it would act. I recently also called Lunati and asked about a cam for my 427sbc and spoke to the tech guy who was very eager to agree with me, after agreeing on a special grind cam and ordering it, I sat down and put all the specs together and the cam would have been worse than what I had, I called him back and told him that just agreeing with me was not doing his job and that I had mainly asked for his opinion not for him to just agree with me to get me off the phone. The cam hadn't been made yet so we went through respeced a new cam and at the same time I made sure my compression wasnt going to be killed off as it would have been with the first cam and the cam was going to be able to deliver what I was looking for.

streetrodz1, I feel ya on the carb issue. I want to get a new one asap but I just had to buy the roller rockers and Im done putting $ into this thing for now. I have found some good deals on craigslist so Ill just have to keep looking. I did find out that my old cam was a comp cams Magnum 280H. So im not stepping up as much as id like to but at least its up some.

steelcity, what vehicle is this in?

1969 Chevy Nova AKA rotbucket. frame ties,slapper bars,4.56 rear,custom weight reduction(rust holes) ran 11.7 best.
Recenty replaced by a cherry 1968 nova from arizona...transpant is underway

1969 Chevy Nova AKA rotbucket. frame ties,slapper bars,4.56 rear,custom weight reduction(rust holes) ran 11.7 best.
Recenty replaced by a cherry 1968 nova from arizona...transpant is underway

custom weight reduction....I like that one. Post some pics of the new one sometime.

steelcity, what rocker arms are you using? Im having trouble finding offset 3/8 rockers, I know scorpion has them but I cant find who sells them right now.

I run old school stamped steel with a roller tip1.6..Trick flow makes them...Scorpion last I heard was buying out crane cams so perhaps if you wait a little you can save some cash and buy some backstock on the cheap. btw some pics for ya Old rusty, the new black one and the old set up