AAR resto

[Challenger RTA]

Well i was going to pay for the bolts that went with the kit and ARP said how about free

That's were a company succeeds. Follow through with a customer. That makes them an A++++ in book!

Agreed, 1° isn't worth the hassle.

At that point your spitting a Nat's hair on it's rear. You could install an off set key but not a big deal' as Xcudame said.

 

[don selleck]

got the heads back, Darryl did a great job on these, he used Howards cams recommended spring pressure 200/250 closed and 600 fully open. He changed the keepers to 7 degrees I believe. milled the valve seat to gain the clearance for the .600 lift cam. He had some questions and contacted Howards on the phone, Darryl didn't like the valve grind so he cleaned those up with a performance grind is what he calls it, and did a very slight mill on the surface just to clean it up. The chrome looking valve springs was the first thing that caught my eye. Very happy with the results, The rockers have just a slight rub on the springs just barely touching on a few of them, so a little relief will have to be cut and polished up a bit.

 

[don selleck]

well finally back at it. finished up the grand national i've been working on getting ready for auction on may 9th in Indy. Got my rockers clearanced, and shimmed, rollers are nearly perfect on the valve stem tips, one head had 6 rockers interfering with the valve springs and the other had three. took just enough to clear them leaving as much meat on the rockers as possible. Threaded the rocker assembly hold downs deeper to get a little more hold down power for them. 600lbs compressed is quite a bit imo. Heading back out to start measuring the push rods for smith brothers to make up a set for it.