Piston To Valve Clerance, Confusing?

[94GTcobra]

Im going to be running my Gt-40P heads with 1.90/1.60 valves, with a CRANE

2031 Cam, but in the damn website it says they recommend with 1.7 roller

rockers but some people tell me to just go with 1.6 roller rockers because of

piston to valve clerance. I wont be getting very much performance with 1.6

roller rockers. The cam specs are as followed the duration is (2.14 I, 2.20 E)

valve lift is {.513 I/529 E## this is using 1.7 roller rockers. What is the best

cam i can use with out any PTV clerance, So damn hard choosing cams, If i

dont go with the CRANE 2031 , what do guys think of the Ford Racing letter

cams, I was thinking maybe B or E cam. Most important it has to be SMOG

LEGAL.

 

[94darkhorse]

I'm running 1.6 rr's with the dreaded b cam with no problems so far.

 

[94GTcobra]

Any soundclips of you cam, also in the Ford Racing website it says its only EMISSION LEGAL for Manual transmission, I have an auto with a 3500 stall converter.

 

[fastgtfairlane]

what about the steeda #19 cam. onyxcobra has that cam in his car. that cam is mild enough and shouldnt be a problem with the heads you have and should work well with your heads. the motorsport cams are decent cams, however with your setup you would benefit more with a dual pattern cam such as the #19 cam. dual pattern cams usually have more duration and lift on the exhaust side to make up for the poor port design of the stock 5.0 type heads.

 

[OnyxCobra]

deja vu. lol anyway yeah the Steeda #19 is another option, i run it with 1.7 rockers and 1.9" intake valves with zero problems on stock bottom end.

 

[94Pro-5.0]

i think i just responded to your thread on Corral

I have 93 Cobra GT40 heads and F303 cam using 1.5RR's right now with no problems; .512/.512 lift

 

[94darkhorse]

I'll see if I can find my vid of it.

 

[OnyxCobra]

i think i just responded to your thread on Corral

I have 93 Cobra GT40 heads and F303 cam using 1.5RR's right now with no problems; .512/.512 lift

1.5RR?? Pretty sure the F cam has .512 lift with 1.6s.

 

[94Pro-5.0]

i actually can't remember what RR's i have, i just know they are not 1.7's :dunno:

 

[fastgtfairlane]

the steeda #19 cam is mild enough to be able to run decent without a tune also.

 

[OnyxCobra]

i actually can't remember what RR's i have, i just know they are not 1.7's :dunno:

Chances are they are 1.6s :thumb:

 

[94Pro-5.0]

i actually can't remember what RR's i have, i just know they are not 1.7's :dunno:

Chances are they are 1.6s :thumb:

yep, just looked at my receipt, 1.6 :thumb:

 

[Stangbangin]

You'll hear me say this alot......GO CUSTOM.....its worth the extra coin. If your runnin the p heads and maybe trick flow intake like someone I know used to have (me) with a custom cam you CAN put 295 to the wheels with a nice broad torque curve. I actually still have that cam.....if your interested. This was with no piston to valve issues with 1.6's.

 

[purplehaze]

i have the e303 with my rr's and heads still being stock. arent the steeda #18 and #19 just about the same as the frpp b & e303's? cant wait to get my 1.6's and tfs heads.i have a sound clip of my car with the e303 if you wanna hear it.

 

[purplehaze]

You'll hear me say this alot......GO CUSTOM.....its worth the extra coin. If your runnin the p heads and maybe trick flow intake like someone I know used to have (me) with a custom cam you CAN put 295 to the wheels with a nice broad torque curve. I actually still have that cam.....if your interested. This was with no piston to valve issues with 1.6's.

what are the specs of the cam and how much you asking. im planning to go all trick flow. already have street heat intake.planning to get tw heads soon and rr's.let me know thanks.

 

[cobra4978]

i think i just responded to your thread on Corral

I have 93 Cobra GT40 heads and F303 cam using 1.5RR's right now with no problems; .512/.512 lift

How do you like this setup i was thinking of doing this myself but have not made the move yet. Would you recommend it?