will a tfs 3 cam clear this?

[Modular2v]

I know. i know....always check but my buddy wants to know if this will clear because we would both prefer to NOT have to notch the pistons. Here is the setup

Rebuilt 1974 351 windsor.....it has the stock internals (dished pistons)

Hydraulic roller conversion

C9 heads (ported and milled!) (were on my 331)

We are pretty much just seeing what people think before he orders the cam. I think there is a good chance of it clearing because my flycut flat tops cleared fine with the same heads and same cam....oh 1.6 rockers will be used.

 

[Modular2v]

bump.......

the valve sizes are 1.94/1.60

 

[86bluecobra]

Thats hard to say. I have dished pistons in my 351w and i am clearing 2.05 valves. I have a xe 274 cam:
Hyd. Hyd. 1800 to 6000 35-246-3 XE274H 274 286 230 236 .519 .523 110°
the stage 3 cam:
Rough idle, strong top-end power. 3,000-3,500 rpm stall converter, 3.90 to 4.11 gears recommended.
Compression: 10:1 minimum

236°/248° .359/.372 .574/.595 110°

There seems to be alot more duration and lift in the trickflow cam. That will be a hard one. I doubt it works. Also he will be giving up a ton of low end torque with that cam. Is his car a race only?

 

[Modular2v]

no its not race only......will get driven around 200 miles a month

 

[86bluecobra]

well if he is going to drive it around town why does he want a cam that will make power after 3500rpm. I know how loud my 351w is and if i revved it to 4 or 4500 rpm every gear as i shifted the cops would definetaly nail me for some sort of noise pollution. The other question is what are the max lift specs on the heads you had? Are they able to allow a near .600 lift?

 

[86bluecobra]

lol nevermind about the heads question i noticed you ran the tfs3 cam with those heads.

 

[Modular2v]

they flow fairly well to 550 ( or so i was told by the machinest)......thats what i was trying to tell him....my car wants to be revved to 5k rpm every shift lol

 

[86bluecobra]

yep but reving to 5k every shift gets you in trouble around town. Also is he running a standard with atleast 3.73's? or is he running a auto. if so i hope he knows he will need a high stall.

 

[Modular2v]

lol nevermind about the heads question i noticed you ran the tfs3 cam with those heads.

yeah.....the old combo must have been doing something 1/2 way right i guess?

 

[86bluecobra]

lol i want a 11.18 timeslip. One day. If you have your engine torn down and out of your car right now why don't you swap your cam into his engine and see if it works? That way you can measure and know for sure. I would suggest for a street application to run a little less agressive cam however.

 

[86bluecobra]

oh yah something else i thought of is with those dished piston well atleast with mine i believe i am running a 8.2 to 1 compression ratio. I think if he is close to my compression ratio then that cam is also to big for that CR.

 

[Modular2v]

oh yah something else i thought of is with those dished piston well atleast with mine i believe i am running a 8.2 to 1 compression ratio. I think if he is close to my compression ratio then that cam is also to big for that CR.

EXACTLY what i was thinking. Isnt there a way to trick the motor into thinking it has more compression than it really does......i might be thinking of something like a voodoo cam would offer His compression is higher than yours though because of all the milling work that has been done to the 9s.

 

[86bluecobra]

I don't know about tricking the engine. i think it has what it has. I was thinking of going to trick my car so to speak with a novi 2000.

 

[Modular2v]

lol i want a 11.18 timeslip. One day. If you have your engine torn down and out of your car right now why don't you swap your cam into his engine and see if it works? That way you can measure and know for sure. I would suggest for a street application to run a little less agressive cam however.

oh.......my motor went back together last week. Only thing im missing is the victor jr intake that will be here on tuesday

 

[Modular2v]

I don't know about tricking the engine. i think it has what it has. I was thinking of going to trick my car so to speak with a novi 2000.

i could have sworn i heard something about a certain cam being able to do that....maybe i was dreaming lol. novi 2000

 

[87AODGT]

you're thinking of smaller cams that have more dynamic compression because of how early they shut the intake valve in comparison to the larger cams that bleed off compression, no way to get that thing to rev out and have high dynamic compression if your static compression is nothing to begin with