question about milling AFR heads with F13 cam
03-19-2005, 03:55 PM
#22
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Originally Posted by T/A-Speedfreak
Blake, I pulled my valves and checked the size, they are 2.02" and 1.575". I was told they were 2.05's but this might work to my advantage.
That's good. The cam should work great for you now.
03-23-2005, 03:57 PM
#23
i got an email back from allan and he said with the afr heads, if we checked it out then they should beable to clear with the f13 cam with the heads milled .040 but he said to ask tony about that if it would effect the flow of the heads, im gonna run them out of the box and then when i go a 90/90 set up ill prob port match and mill
03-23-2005, 04:36 PM
#24
Take this FWIW.....I just checked my F13 (113+2) with stock heads, 2.00/1.55 valves and .060" MLS gasket and had .110" Intake and .130" Exhaust. The 112+4 version will probably be .020" tighter on the intake side.
Also, the valve dia. between 2.05 and 2.02 isn't going to affect the clearance more than .005" max. Probably lose around .008"-.010" going from a 2.00 to a 2.05 valve.
Also, the valve dia. between 2.05 and 2.02 isn't going to affect the clearance more than .005" max. Probably lose around .008"-.010" going from a 2.00 to a 2.05 valve.
03-23-2005, 06:00 PM
#25
Originally Posted by WS6FirebirdTA00
i got an email back from allan and he said with the afr heads, if we checked it out then they should beable to clear with the f13 cam with the heads milled .040 but he said to ask tony about that if it would effect the flow of the heads, im gonna run them out of the box and then when i go a 90/90 set up ill prob port match and mill
Tony M.
03-23-2005, 06:22 PM
#26
Tony, that is exactly what I plan to do. This way I can determine how much to mill them when I decide to. Plus, like you said, I can cover myself and make sure I dont have any issues.
How would I go about checking P-V clearance? Is there any write up on how to do this? a certain tool? I havent really heard much about it until recently
How would I go about checking P-V clearance? Is there any write up on how to do this? a certain tool? I havent really heard much about it until recently
03-23-2005, 07:54 PM
#27
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Originally Posted by WS6FirebirdTA00
How would I go about checking P-V clearance? Is there any write up on how to do this? a certain tool? I havent really heard much about it until recently
03-23-2005, 09:43 PM
#28
Guys...
You cant learn how to properly check P to V on the thread of one of these forums....plus you will need a few basic engine tools. I would imagine somewhere in the "search" world you could find some threads that have already hit this topic hot and heavy and could probably offer you some decent insight on how to get it done.....barring that, order a "how to" engine book from Jegs, Summit, or your local parts house. Educate yourself....its not that difficult with some patience, a decent grasp of how an engine operates, and a few tools/supplies you might have to round up.
Bribe one of your buddies that might have done it before...
Good luck....
You cant learn how to properly check P to V on the thread of one of these forums....plus you will need a few basic engine tools. I would imagine somewhere in the "search" world you could find some threads that have already hit this topic hot and heavy and could probably offer you some decent insight on how to get it done.....barring that, order a "how to" engine book from Jegs, Summit, or your local parts house. Educate yourself....its not that difficult with some patience, a decent grasp of how an engine operates, and a few tools/supplies you might have to round up.
Bribe one of your buddies that might have done it before...
Good luck....
