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View Full Version : rocker stud problum!


96formula8az28
12-10-2009, 12:07 AM
does any one know if i use the arp rocker studs, They are a littel bit longer then stock, Useing them with my 1.6 Chevy performance roller rockers. Would this cause a problume, Need to know before i run it.
96LT1355Z28
12-10-2009, 01:13 AM
I don't see it being a problem as long as it doesn't throw off your valvetrain geometry (makes the rocker sit at different height). Are the ARP's longer as in there is more thread material?
MeanGreen94Z
12-10-2009, 01:35 AM
nope no problems, the length doesnt make a shit of a difference, the only prob is if your geometry is so fatr off that the rockers sit so far down that the poly lock "lock" wont screw in... but that will never happen unless your machinist REALLY had an off day lol. just DONT use the stock style self locking nuts on them as they arent designed to work together
proace4
12-10-2009, 02:12 AM
i have this exact setup on my car and have had no issues... and i spin the hell out of it!
95LT1Z28
12-10-2009, 09:18 AM
Youll be fine with using them!!
95formula383lt1
12-10-2009, 11:34 AM
yea i have the same ones, i actually was the one that gave u that part number as everyone else said theres no issue with it
96formula8az28
12-10-2009, 02:15 PM
they only thin is that my polly locks wont screw all the way in. but im going to be starting it tonight most likly. just starting to put the harness back in now.( got raind out)
so its time to see what a cc503 will sond like!!
95formula383lt1
12-10-2009, 03:10 PM
lol it will sound like a cammed lt1. but yea i didnt have that problem with brits poly locks on the same studs. there also the same studs that are on my heads. as long as the tighten ur good. yes i got rained out too.
TWS
12-10-2009, 03:19 PM
I'm using ARP 7/16" rocker studs with my Comp Cams Pro Mag 1.6 rockers and no problems. I spin the biotch to 7K sometimes and they are fine. My alternator belt had a different opinion on that once, but the studs/rockers didn't.
Z28pr0jekt
12-10-2009, 03:56 PM
FYI I used arp studs and tried to use ARP polylocks and they were both a hair taller than stock and they interfered with the valve covers, switched back to my comp poly locks and everything seated fine
93v8clone
12-10-2009, 07:19 PM
i have used em with no problems .i hope that hasnt been said already
Spartan7
12-10-2009, 07:48 PM
FYI I used arp studs and tried to use ARP polylocks and they were both a hair taller than stock and they interfered with the valve covers, switched back to my comp poly locks and everything seated fine

What part #s were they? Because I've seen a couple different part #s floating around for studs and poly-locs, some with different heights.

I have 135-7101 studs and 300-8245 perma-locs, and they fit fine under stock VC's (both 7/16").
Z28pr0jekt
12-11-2009, 04:31 AM
What part #s were they? Because I've seen a couple different part #s floating around for studs and poly-locs, some with different heights.

I have 135-7101 studs and 300-8245 perma-locs, and they fit fine under stock VC's (both 7/16").

I actually don't, i tried looking up my old summit order but they dont have it, it was a few years ago. I do know they were 3/8" parts though
JAKEJR
12-13-2009, 06:17 PM
Poly lock interference with the underside of te valve cover could be the result of the lifter preload setting. Less preload settings let the poly locks sit higher.

When I swapped heads recently on my son's 96 LT1 Vette, I went with 7/16" ARP studs that are 1.900". I wanted more poly lock thread engagement. Covers fit without any modification at all.

Jake