What roller rockers are these?
What roller rockers are these? So my build came to a grinding halt just now, just take a look at these rockers. I'm not sure what they are, got them on the engine when I bought it, and they have some little tips sticking down under the roller not letting it touch the top of the lash caps?
Not sure if they are just the wrong rockers, or what the hell is up. Needed to have this done today, and finding this screws me... damn cars!
So if they are not the right ones, I spent money having the top end setup wrong... and now question the cam or anything else being done right too.
Not sure if they are just the wrong rockers, or what the hell is up. Needed to have this done today, and finding this screws me... damn cars!
So if they are not the right ones, I spent money having the top end setup wrong... and now question the cam or anything else being done right too.
Yes, they look to be self aligning roller rockers. These rockers will not require you to run guide plates. It will also require retainers made for these rockers as well.
^ I figured as much with retainers, I have lash caps on my setup now and clearly these won't work.
I'll be ordering new ones from summit in the morning, sticking with the SA for now. With the 503 I don't think I need NSA yet. My 355 will have them for sure!
I'll be ordering new ones from summit in the morning, sticking with the SA for now. With the 503 I don't think I need NSA yet. My 355 will have them for sure!
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TECH Addict
Joined: Dec 2010
Posts: 2,610
Likes: 4
From: Maricopa, AZ
Considering those rockers are not a good name brand, I'd replace the rockers. Yes, they are more expensive than the retainers, but you don't want to cheap out on the valve train. SA rockers are fine if the valve train is set up correctly. I take my Harland Sharp SA1002 to 6800 without issues.
http://www.summitracing.com/parts/cca-1418-16 picked these up to replace the shot rockers. The needle bearings were gone, and frankly they are just junk. oh well, no big deal.
Those aren't full rollers, only roller tip. A roller trunnion is more important than a roller tip for making power. They're not really worth it IMO considering full roller Scorpions are ~$65 more.
Considering i have to use lash caps right now as the valves are a bit short, I've not seen any other RR's on summit that would work for me. I say summit, as i always get parts next day, and need them asap.
and since you want to use all the wrong parts anyway I will tell you right now the Comp guideplates are the wrong spacing for an LT1, Isky adjustable are the best bet but some guys like the Trickflow, cheaper, easier, less than perfect but a whole lot closer than Comp. This isn't to say the Comp are badly made, they are just meant for a different valve spacing.
My entire upper half is now all comp parts, being I don't have the tools or experience yet. So the fact that I got screwed a bit by an engine shop is a bit shitty, but sure keep making shitty assumptions like you ALWAYS have on here. I took it to have it inspected and setup, expecting to be told if something was bad. instead the guy setup my motor all F....'d up.
So since I forgot in the OP, I'm using COMP 918's, with 795 retainers, new 10 degree locks, locators, valve seals, and obviously the cam and lash caps. I'm only using the lash caps since i was told my valves were to short and i had no choice.
I wanted to run a NSA setup from the start, but in a pinch thought maybe i could get away with SA for a few weeks as I'm just starting a new job blah blah blah.
So IF the roller tip comps work that i linked at least for now, i'll be happy... i can always swap rockers out easy enough.
So since I forgot in the OP, I'm using COMP 918's, with 795 retainers, new 10 degree locks, locators, valve seals, and obviously the cam and lash caps. I'm only using the lash caps since i was told my valves were to short and i had no choice.
I wanted to run a NSA setup from the start, but in a pinch thought maybe i could get away with SA for a few weeks as I'm just starting a new job blah blah blah.
So IF the roller tip comps work that i linked at least for now, i'll be happy... i can always swap rockers out easy enough.
You shouldn't need lash caps, especially with beehives. The retainers are small and rockers should clear. I had to run caps with wide Crane duals and Harland Sharps so the thick steel retainer would clear.
I'm going to have someone else check it over, make sure the springs are installed properly etc. Not taking chances, I canceled my order from summit and am going with trick flow guide plates, comp 7.205 high energy pushrods and scorpion nsa rockers.
Just pissed you pay someone to do something and they do it wrong. Needless to say I'll be paying the guy a visit soon! Take my $360 back....
Just pissed you pay someone to do something and they do it wrong. Needless to say I'll be paying the guy a visit soon! Take my $360 back....
TECH Veteran
Joined: Apr 2008
Posts: 4,985
Likes: 112
OP
are you saying your valve stem is to short with the 795 retainers & 10 degree locks to use SA RR which is why you are using lash caps??
use ISKY adjustable guide plates and NSA RR like Comp ultra pro mags and NO lash caps
and confirm PR length...7.200 should be fine but we don't know wtf your heads are, valves, was motor & head decked, etc
it is all about valve train "geometry", get it wrong and......boom
are you saying your valve stem is to short with the 795 retainers & 10 degree locks to use SA RR which is why you are using lash caps??
use ISKY adjustable guide plates and NSA RR like Comp ultra pro mags and NO lash caps
and confirm PR length...7.200 should be fine but we don't know wtf your heads are, valves, was motor & head decked, etc
it is all about valve train "geometry", get it wrong and......boom
I was told the valves were to short to work with those rockers and I needed the caps. I'm no expert on valvetrain, but I did a lot of homework on good parts/proven combos.
I'm going to either take it somewhere else, or get a mic and check install height as is.
I'm going to either take it somewhere else, or get a mic and check install height as is.