Help with AFR 185's!!

[69clark]

I haven't decided whether to go with TFS track heat heads or ARF 185's but I think I would prefer the AFR's. Now on to my questions, if I go with the AFR 185's:

1: Will the bolt up to the stock 1995 cobra short block (mainly meaning will the stock pistons work or do I need special designed pistons)?

2: If the stock pistons will work, what is the approx. max lift that I can clear on the intake and exhaust with stock pistons? This will help me decided the cam and rockers I choose. Also what would the approx. max lift that I can clear on the intake and exhaust with stock pistons with the TFS heads?

Thanks guys, I am getting ready to order soon so any imput would be great.

 

[final5-0]

Form what I've seen on these forums, peeps say you gotta notch the stock pistons or get some pistons with more valve relief.

Why not call AFR tech guys

Grady

 

[69clark]

I probably will but it was christmas day when I posted. I be willing to bet my car on it that they wouldn't be there.

 

[YEAHLOH95]

i know you can run more cam with the trick flows if you are running a stock bottem end , go with the afr 165's they clear with my big cam and stock pistons and make ok power with the blower .

 

[Killercanary]

The 185's will not work with the stock pistons unless you flycut them which I wouldn't do with a power adder. As for the cam specs, there is a lot more that goes into the amount of clearance you can get by with than just the max lift. Duration, lift, etc all come into play in addition to head gasket thickness, how far in the hole the pistons sits at TDC, etc. I think of the TFS cams the stage 2 is the biggest they claim you can run with the TW head and the stock shortblock, but you may want to double check that.

 

[Rick 91GT]

The 185's will not work with the stock pistons unless you flycut them which I wouldn't do with a power adder. As for the cam specs, there is a lot more that goes into the amount of clearance you can get by with than just the max lift. Duration, lift, etc all come into play in addition to head gasket thickness, how far in the hole the pistons sits at TDC, etc. I think of the TFS cams the stage 2 is the biggest they claim you can run with the TW head and the stock shortblock, but you may want to double check that.

Yeah the 185's will not have enough radial clearance in the stock valve notches, and they will hit at the outside edges on the eyebrows.