I WILL INSTALL CAM "STRAIGHT UP"- DONT OWN DEGREE WHEEL-WILL HAVE UNTOUCHED HEADS CUT .030-BLOCK & PISTONS UNTOUCHEDCompression should be somewhere around 10:1 I believe. The PV clearence would need to be checked since things were changed or are unknown like the degreeing of the cam.
I WILL INSTALL CAM "STRAIGHT UP"- DONT OWN DEGREE WHEEL-WILL HAVE UNTOUCHED HEADS CUT .030-BLOCK & PISTONS UNTOUCHED
THANK YOU FOR REPLY
SIR= I ONLY STATED FACTORY STOCK,BECAUSE THAT IS WHAT THE MOTOR IS= THAT WOULDNot to take this off topic, but I thought GT40P heads weren't allowed in FS? IIRC, only the standard GT40's were allowed.
I STREET RACE 1/4 MILE FOR $$$$
ONLY GO TO STRIP TO SANDBAG
AINT NO DUMB QUESTIONS=DUNNO NEVER DONE IT=THIS IS WHY I AM ASKING FOR GUIDENCEhow do you check ptv clearance? i know its a dumb question. sorry
Thank you sir-my exp. is that most cams are 2 degree built in advance to compensate forA lot of cams are ground with advance or retard...i think you're safe going straight up unless you're trying to squeeze as much as you can out of your combo and you know what you're doing...if so then degree it. I went straight up with my X303 and it's fine. If i were a gambling man i'd say your PTV clearance will be ok, but CHECK IT. How dumb would you feel if you didn't check it and bent all your valves up the first time you started it up? Also, please turn off the caps lock
giddy-up! premium info again= many thanks for sharing links=will use method you describedI agree with maryland stang your compression would be around 10:1. As far as checking ptv clearance theres a couple ways. I think most people use modeling clay. Lay a strip or two across the piston where the valves would make contact, the strip should be about 1/4 in. thick, you can lightly cover the top of the piston and valves with oil so the clay wont stick to the valves and pistons. Make sure you put the cam in your gonna be running and also whatever else your swapping out if any. Your suppose to use a used head gasket when checking ptv clearance, but I imagine if you don't have one theres not much you can do about it. Put the head on your going to be using, put some bolts in the head, I think you only need to tighten them like 30lbs, then put your pushrods and rockers on the piston your testing, also your supposed to use solid lifters when checking ptv clearance. Once you have everything on the piston your testing turn the motor over a couple rotaions, if at somepoint it gets hard to turn over stop so you don't mess up the valves, once you have it turned over thru the compression and exhaust stroke pull the head, carefully remove the clay and check the thinnest area of the clay with a dial caliper intake should be .080" and exhaust .100". If something don't make sense go to FORDMUSCLE webmagazine: Fundamentals - Checking Piston to Valve Clearance
hope this helps. Also if you can find out what cc your heads are after you milled them, this site will help for the comp. ratio. Stock the GT40 heads are 60cc I believe.FORDMUSCLE.com webmagazine - Compression Calculator
One method i heard that kinda made me laugh was to use Tootsie Rolls...This was on Power Block i believe. They said take 2 Tootsie Rolls and leave them in the wrappers, but roll them in your hands to warm them up, then put them in the valve reliefs and do your check as per the usual routine, and then take the rolls out and freeze them. This way you can then unwrap them (the wrapper is left on to prevent them from sticking) and measure them while they're hard to get an accurate reading. When i did me i used pink playdough...i've always been told specifically to use PINK playdough...no idea why, maybe there's something particular about the texture or thickness of that color.
JUST BOUGHT E303 &
NOS COMPLETE GT40P'S
TO INSTALL IN
FACTORY STOCK 1993 5.0 -1.6r'S
WITH FACTORY HEAD GASKETS & .030 MILLED OFF HEADS
? C.R. ?
? PTV CLEARANCE ?
PLEASE RESPOND THANK YOU FOR HELPING
GOT 9 CARS DUDE/ ANOTHER 15 AT FRIENDS SHOP/THIS IS A MUSTANG II THAT DAD BOUGHT NEW AND JUST BOLTIN' ON A FEW THINGS/ AT 2900= NUMEROUS GEAR= TRANSMISSIONS=SLICKS=INTAKES= CARBS =NOS KITS=ETC.so you race on the street for big $? So what do you run like go carts or something?
thats not gonna be the fastest thing around...
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?