G Atsma

And here we are! Thanks Darth!

99 Black Bird T/A

iTrader: (4)

Wow! That was Fast!!!

Thank you.

G Atsma

Darth gitz 'er dun!

thunderstruck507

iTrader: (18)

he also pm’d me

happy to report everything is still all well, I probably should have the valve spring pressures checked or simply replace them

I adjusted lash again back in December because the engine was ticking a little. 1 rocker needed .003” removed. All the rest were fine

I don’t make it on here much these days but I’ll still say I am very pleased with the setup and would totally do it again

G Atsma

Good to see ya here again, man! I hope things are going well for you.

spanks13

iTrader: (5)

If you have no lash adjusters and the lash has changed that typically means something is failing like a lifter or a cam lobe.

thunderstruck507

iTrader: (18)

I have changed jobs again and now work for a major semi truck dealership dealing parts currently with hopes to move into lower management within 6 months. Things are looking promising.

If things go well I’d love to get the Chevelle painted, get some a/c in it, then possibly down the road look into a fresh engine setup. My buddy who works with me just put a bigger blower on his gt500 and now makes around 650whp, so I need to step up a bit haha.

mjs1012

iTrader: (36)

How many miles roughly have you put on the setup so far? Seems like a good option for a lot of people who are ok with the tedious install work.

thunderstruck507

iTrader: (18)

Not saying it’s not possible but I’ve seen no signs of failure

To further clarify, literally the last time I checked lash was when mentioned in this thread, which was quite some time ago

Also I had abandoned thought of this thread, transmission failed in my truck and I got stuck driving the Chevelle daily in the coldest part of winter...0-10* days, caught in snow/sleet a few times with a half working blower motor...the engine tick was a “last straw” on my nerves so I didn’t pull a .001” at a time...I just pulled .003” and the rocker went tight so I called it good and went to bed.

If anything I would suspect wear on the pushrod tips, rocker arm tips, or the beginning of trunion wear over damage to the cam or lifter given the components at play

Regardless, should any component fail I will for sure make a point to update. Given the amount of time passed and abuse seen I still call this experiment a success and thank Kip for convincing me to tear down a perfect running engine to try it.

Also I can’t remember if it was covered here but when I say abuse I mean it, I started experimenting and turning the engine 7400rpm at the track and on the street there were a few occasions it saw 7600rpm by accident (it still felt strong and I was focused on things other than gauges) as evidenced by my gauge recall function. I think 7640 was the high score.

thunderstruck507

iTrader: (18)

I can’t honestly say off hand, it’s been so long I will need to reread and check my notes.

As far as tedious install, I overcomplicated it IMO. Once you have a good pushrod measurement it’s just a matter of the initial shimming. The valve stem grinding I did is not a mandatory thing given how well the shims work if you separate the rocker pedestals into pairs like I did.

Darth_V8r

iTrader: (4)

Another trick I have since learned with any non-adjustable rocker (but especially stock type) is you can use lash caps to also make fine adjustments. They also give you a wider wipe surface at the valve tip, so less wear. The pushrod measurements were absolutely the most critical part. Manton will usually get them within .003. The third time I did a LLSR with fixed rockers, I ordered the pushrods .010 long. But it was 7 at one length, 3 at another, etc. By ordering slightly long, you avoid the accidental "this one's too short and I can;t close the gap" issue.

thunderstruck507

iTrader: (18)

that’s a good tip, I was close enough on some I needed to shuffle some pushrods around or sand the bottom of the pedestal some to close the lash

LS14fever

iTrader: (5)

Good thread. Has anyone tried these with the Btr Shaft mounted rockers?

thunderstruck507

iTrader: (18)

Long time no post

This time last year I was on the way to the strip and the engine developed a tick. Borrowed a trailer and got the car home. Have determined it lost a lifter or cam lobe on cyl 1 intake.

Will update once the engine is torn down. Will be getting a full shortblock refresh. I have a set of z06 243s with sodium valves to get cnc ported and yella terra adjustable rockers to go on with the new setup. I scored the parts cheap from a friend and also got his llsr. Undecided on using his cam or calling Cam Motion for one similar to my old one with more lift allowed by the rockers.

will update with pics upon tear down

Che70velle

iTrader: (6)

Good to see you posting Thunderstruck. Keep us in the loop here.

BFromTheD

Damn that sucks