Just put some big block chevy studs in the heads and bolt on some good big block ford roller rockers. It should work fine that way. The spring you should use should just be whatever is recommended for the cam. I'm guessing it'll be around 120# at 1.9" installed height and around 300# open pressure. You could either run a single or dual spring. If you go with a single, you shouldn't have to machine the valve spring seats. You'll probably want to at least have the valve guides machined for .500" or .530" valve seals and more guide to retainer clearance.

 

A443 Cam

That A443 cam is more for mid range rpm. I run it in a 521 with about 10.5 to 1 compression. It's about done at 6K on my Edel head motor. If you want to run above 6K go solid.
Roller rockers and guides are a must for lifts above .500 inches. 3/8ths pushrods are great insurance over the 5/16ths stock size.

 

WOW!!! Another dumb question from me!!

Is there any REAL reason why these single springs won't work?
The Cam needs .588 for valve lift. These look like a cheap answer and they might actually work?!?

http://cgi.ebay.ca/Ford-Chevy-Racin...QitemZ250091135514QQihZ015QQcategoryZ33617QQrdZ1QQssPageNameZWD1VQQcmdZViewItem

With the small retainer wouldn't have to notch those cheap rocker arms for clearance? Or have i been too close to the fumes from the parts washer?

Thanks,

 

pbm part number 3100. Uses stock retainer and spring seat.

http://www.pbmperformance.com/downloads/PBMcatalog2005_1_33.pdf

Install at 1.800 and at .600 lift you are still .05 off of coil bind. I have used several sets with no problems. Plus they are relatively inexpensive.

Kyle

 

So, If i understand this correctly...

C9VE Heads:
A443 Motorsport Camshaft
2.20 int / 1.80 exh valves
Roller rocker arms.
Use the springs recommended above.
no need to modify the spring seat
mill rocker arm pedestals
Use 7/16 ch*v rocker arm studs
Use guideplates.
3/8 pushrods strongly advised.

I have been offered a great deal on Ch**y pushrods that are 8.80 long. I think they just might work. Any final comments?

Thanks again.

 

I don't think you need to mill the rockar arm pedestals as long as the threads on the studs are long enough (go down the shank far enough) to give you plenty of adjustment.

 

The reatainer to seal clearance isn't enough for that lift; if you run NO valve seal at all you might get away with it. Otherwise you'll need to cut down the guide height about .100" for clearance.

On that head the pedestals only need to be cut minimally or sometimes not at all depending upon the rocker arm used.

 

I have been offered a great deal on Ch**y pushrods that are 8.80 long. I think they just might work. Any final comments?

8.8's are probably too long. I ended up with 8.4" on my build. Best to get everything together and use an adjustable push rod to measure.

 

The reason I suggested using the BBC rocker studs is because I've HEARD that the threads on them usually go lower than studs for the BBF which means you often don't have to machine the heads at all. How true and accurate that is, I don't know.

 

After I installed guide plates and ARP studs I had barely enouigh clearance for my roller rockers. The exhaust seemed to have less clearance than the intake.

It's not the length of the threads. It's the distance between the bottom of the rocker and the stud hex. The thickness of the hex on the ARP stud is smaller than the stock Ford Studs. Even so, I thought the clearance was marginal so I had the bosses milled the thickness of the guide plate.

If you don't mill the bosses, then make sure that you look at the clearance under the rockers after you get the right pushrods in the motor.

 

As a general rule...

...the harland sharp rockers require a short pushrod and also milling of the rocker pedestal because of the pushrod cup location relative to the other BBF rockers.

If you are going to utilise TFS comp crane rockers etc milling of the pedestal is not needed.




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As a general rule...

...the harland sharp rockers require a short pushrod and also milling of the rocker pedestal because of the pushrod cup location relative to the other BBF rockers.

If you are going to utilise TFS comp crane rockers etc milling of the pedestal is not needed.




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Great!! which set up..

Thanks for your help. I really enjoy your porting instructions too! the subscription is well worth the price of admission.

Which rocker arm, if any, will fit under stock tin valve covers?

I'm going with a sleeper look.

 

Roller rocker under tin cover?

I'd love to skip milling the rocker arm pedestals.

If anyone has gotten away with it and can still run an aggressive cam I'd like to know how they were set up.

Thanks again,

 

Re: Great!! which set up..

Thanks for your help. I really enjoy your porting instructions too! the subscription is well worth the price of admission.

Which rocker arm, if any, will fit under stock tin valve covers?

I'm going with a sleeper look.

The comp steel body rockers will fit with mods to the baffles. I run a.600" lift solid flat tappet on my spoiler with no issues...



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