question about f cam

[venom97]

i know that it is always recomended to check piston to valve clearance and every engine is different,but i was wondering if use of a f cam requires the stock pistons to be cut?

 

[89streetbeast]

depends on what your cam specs and valve size is .

 

[ls1beater4eva]

what heads are on the car?

 

[venom97]

its got stock e 7s now,and i might be getting a set of ported e 7s with 1.90-1.60 valves

 

[ls1beater4eva]

ok well i personaly would check the pvc but i know for sure that a tfs 1 cam speced with 499/51 lift 221/225 [email protected] with 1.7 clear with no prob so you shoud be ok with f cam i would spin it over by hand befor starting it just to make sure nothing is binding up anywhere

 

[Brn N Rubr]

Currently I am running an F-cam with stock HO pistons (4 valve reliefs) and E7 heads with 1.94/1.60 valves. With 1.6 rockers I have no clearance issues. have fun!

 

[venom97]

Currently I am running an F-cam with stock HO pistons (4 valve reliefs) and E7 heads with 1.94/1.60 valves. With 1.6 rockers I have no clearance issues. have fun!

thanks alot man! thats what i was looking for,someone who is running a similar combo. i will still check, but i wanted to know before i bought the cam. thanks again

 

[cardudeusa]

I have the F cam and edelbrock performer 5.0 heads and no clearance issues. Althought I kick myself for going with an alfabet cam, so many better choices out there.

 

[joncash]

I'll agree that you should be just fine w/ that cam as far as clearance, but make sure that you're not using the original valve springs w/ the F-cam's lift. The clearance issues are a little different if the valves are hanging open when they shouldn't because the springs are worn out/inadequate. Crane makes a nice upgraded spring kit for the E7's that don't require any machine work if you're still on the stockers.

 

[venom97]

I'll agree that you should be just fine w/ that cam as far as clearance, but make sure that you're not using the original valve springs w/ the F-cam's lift. The clearance issues are a little different if the valves are hanging open when they shouldn't because the springs are worn out/inadequate. Crane makes a nice upgraded spring kit for the E7's that don't require any machine work if you're still on the stockers.

they've actually got dual valve springs already so i should be all right there.

 

[Modular2v]

they've actually got dual valve springs already so i should be all right there.

dual springs doesnt mean they will be ok for the cam!

 

[86bluecobra]

actually 2 heavy of a spring is as bad as 2 light of a spring. My bro inlaws 440 big block mopar has very heavy springs and he ate the lobes off his cam.

 

[venom97]

dual springs doesnt mean they will be ok for the cam!

i realize that,what i was getting at was their not the originals.

 

[blackened88lx]

Have the springs checked to make sure they're still good. Then you should shim them to the correct seat pressure for your cam.