itsblue95
Well-Known Member
i am buying a set of AFR 185 heads for right now intil i start on my 351. i was just wondering what is the biggest cam i can fit with the stock 5.0 pistons? any help would be greatly appreciated
Cam size?
- Thread starter itsblue95
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OnyxCobra
Post Whore
why go through all the trouble to build a 351 and keep the stock pistons?
rz5.0
Legend
wont work notch them its easy.
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itsblue95
Well-Known Member
im putting the AFR 185s on the stock 5.0 for now this is just intil i get around to build the 351.. trying to find out what size cam would go good with the stock 5.0 and AFR 185s
OnyxCobra
Post Whore
AFR says the 185s require piston notching so my guess is even the stock cam would be pushing it close. My guess is the 185s are going to want a pretty healthy cam, not something the stock pistons would be able to handle without some notching.
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itsblue95
Well-Known Member
ok thats another thing i was wondering about also. thanks onyx oh and btw your car looks really good!
OnyxCobra
Post Whore
thanks bro 
ccasion14:
ccasion14:Can anyone give me the stock info as far as lift and such for a stock 1995 Vert. Looking into getting a cam what I have right now is ( GT40 intake, BBK Shorty headers, Mac off road H-pipe, Flowmaster 40ser,) Looking to get cam throttle body and cold air intake..... Any help is awesome.....
rz5.0
Legend
i heard of people doing it but being really close over rev and there goes your valves. i have after market pistons and had big relieves but they didnt go back far enough. didnt know till i pulled the heads and saw were they were hittimg just bearly but they were hitting. so i just notched the pistons.94-427 said:
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itsblue95
Well-Known Member
Rz did u notch your own piston or have someone else do it
the OEM pistons have valve reliefs as cast ... they just need to be enlarged. I wanna say that there was a link on here where someone took the an old valve (same sizes as the heads he was puting on) and epoxyed a roloc disc to it. Chuck the valve into an air drill (or high speed cordless) and go to work. This can be done with the short block still in the engine bay, just be very particular about covering coolant and oil passages as well as a thoroughly cleaning up afterward. Someone please correct me if I am wrong.
rz5.0
Legend
i did it my self its easy.block still in the car.
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itsblue95
Well-Known Member
rz5.0 said:
how did you do it if you dont mind me asking
rz5.0
Legend
http://www.fordmuscleforums.com/engine-articles/484906-another-technique-piston-notching.html
something like this except i used the actual tool and my old head. unless you run a tfs heads your old one will wok what heads are you planning on running.
something like this except i used the actual tool and my old head. unless you run a tfs heads your old one will wok what heads are you planning on running.
using the old valve is a PITA if you can't get the paper to stick to the valve. I used it for a guide to make an impression of what I needed to cut then I used an air sander to cut out the relief on the piston. Took about 15 mins a cylinder to do including checking and cleaning.
here's pics from when i did it. I came back and hit it w/ the air sander to knock down the sharpness and get it out closer to the cylinder wall and I laid the relief back some for more radial clearance.
of course I did this w/ my performer heads then swapped to the Z304 w/ the same 2.02 valves but the intake valve was moved so I lost a little clearance and couldn't run my cam 242/248 .612 and got pissed and just put the stocker in it.
here's pics from when i did it. I came back and hit it w/ the air sander to knock down the sharpness and get it out closer to the cylinder wall and I laid the relief back some for more radial clearance.
of course I did this w/ my performer heads then swapped to the Z304 w/ the same 2.02 valves but the intake valve was moved so I lost a little clearance and couldn't run my cam 242/248 .612 and got pissed and just put the stocker in it.
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itsblue95
Well-Known Member
Thanks for all the help guys I'll be running AFR 185s after I notch the piston what size cam should I run? I was wanting to run a tfs 1
itsblue95 said:
backwards is this question.
purchase heads. purchase a good cam that will mate well w/ those heads and your intake.
clay the pistons I prefer lime green playdoh, cause green's cool.
cut piston to give .100 clearance all the way around the valve(both valves), this includes the edge of the valve
if you cut it 1st its like saying hey i bought some tires what car should i buy to put these on.
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itsblue95
Well-Known Member
I don't mean it like that. I ment how big of a cam would I be able to go with. Sorry I worded it wrong
