Z28Camaro30Ann

iTrader: (15)

I am being told by summit racing that the Ultra Pro Magnum 1.6 NSA RR's for a 7/16 stud WILL NOT work on my center bolt LT1 because they are not narrow body rockers.......

I know alot of people run these rockers, anyone running with a 7/16 sud SA 1.6's, and do they work?

Z28Camaro30Ann

iTrader: (15)

i am on the phone with summit right now. The part number I am looking at is: CCA-1605-16

BOLO

iTrader: (40)

I would ask them or call Comp directly if they are any wider than their Comp pro magnums? If not, then they should be good to go.

kinglt-1

iTrader: (26)

sa only come in 3/8, nsa are 7/16, yes they should work you just have to clearence the vc's.

bigj2717

iTrader: (15)

Yeah they will work you just have to clearance the internal supports on the valve covers

Z28Camaro30Ann

iTrader: (15)

I ALREADY have Crane Cams 1.6 Gold Aluminum Race SA RR's and my VC's are already clearanced. He was saying the Pro Mags are widebody and I need a narrowbody since I have center bolt valve covers...He was just an idiot (no offense to summit) and didnt know what he was talking about. It just threw me off something fierce.

gregrob

iTrader: (8)

Idiots. They ARE a narrowbody rocker.

As I said Cory I'm using them w dual springs and they're fine...

Z28Camaro30Ann

iTrader: (15)

Yeah, I posted this while I was still on the phone with them before I called you...I called em back, told him he is a moron (not literally, but kinda lol) and bought the rockers and head gaskets.

z_speedfreak

iTrader: (3)

ultra maaags

Z28Camaro30Ann

iTrader: (15)

lol...hey clean up that drool...dont want that on my car! lmao

I_Need_Land

iTrader: (12)

like this:



with these on top

gregrob

iTrader: (8)

They are very nice. I pull my valve covers every once in a while and just stand there and jerk it

shbox

At a glance, the Ultras don't look any wider than the Pro Mags.

Bersaglieri

iTrader: (13)

Can I ask why? Guys can run big solid rollers on Pro Mags, I guess my question would be why get Ultra's?

I figure if you're over working Pro Mags you needed shaft rockers.

-Dustin-

z_speedfreak

iTrader: (3)

they weigh less, cc claims 5% less at the valve over aluminum rockers

madhatter

I installed a set a few months back. For whatever reason I had to trim a bit more that usual on the #8 and #1 cylinders. It literally was a pinhead worth more. They will work just fine.