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-   -   New Trunnion Upgrade (https://www.lateral-g.net/forums/showthread.php?t=52179)

71RS/SS396 12-12-2016 05:46 PM
Quote:
Originally Posted by kevin_l (Post 650461)
Guys, I can't thank you enough for starting this thread. I recently picked up a set of 243 heads for my ls1 chevy II. When the time comes to swap heads I am also planning on changing out the cam, doing a rocker trunnion upgrade, high volume oil pump ect at the same time. After reading this thread and many on ls1tech I decided to order a set of CHE trunnions at $200 shipped. Talked to Matt he was very helpful.
I would not recommend a high volume oil pump, just port the stock one and stick a .060-.070 thick washer under the bypass spring.

GregWeld 12-12-2016 05:49 PM
Quote:
Originally Posted by 71RS/SS396 (Post 650468)
I would not recommend a high volume oil pump, just port the stock one and stick a .060-.070 think washer under the bypass spring.



I L O V E those think washers! I put that **** under everything!

kevin_l 12-12-2016 07:22 PM
Quote:
Originally Posted by 71RS/SS396 (Post 650468)
I would not recommend a high volume oil pump, just port the stock one and stick a .060-.070 think washer under the bypass spring.
Really? I hadn't heard of this. I'll look into it for sure, thanks for the info.

71RS/SS396 12-12-2016 07:53 PM
Quote:
Originally Posted by GregWeld (Post 650469)
I L O V E those think washers! I put that **** under everything!
Where's the middle finger emoji when you need it!:guns:

71RS/SS396 12-12-2016 07:56 PM
Quote:
Originally Posted by kevin_l (Post 650470)
Really? I hadn't heard of this. I'll look into it for sure, thanks for the info.
The LS oil pumps cavitate above 6300 rpm which aerates the oil, using a high volume pump just accelerates that condition.

71RS/SS396 12-13-2016 04:19 AM
CHE bushing and shaft

http://i1009.photobucket.com/albums/...2.jpg~original

samckitt 12-13-2016 06:05 AM
Quote:
Originally Posted by 71RS/SS396 (Post 650459)
I have an blown up engine in the shop (we didn't build it) that I think died a slow death from all of the fairy dust being sent through it from the needle bearing upgrade. This engine had a mild performance cam with .600 lift, it had 12,500 miles on it.

Here's one of the trunion shafts out of the engine
That's exactly what I want to avoid.

samckitt 12-13-2016 06:08 AM
Quote:
Originally Posted by 71RS/SS396 (Post 650482)
Looks like the bushing has a spiral groove too.

kevin_l 12-13-2016 11:02 AM
Quote:
Originally Posted by 71RS/SS396 (Post 650482)
New or used?

71RS/SS396 12-13-2016 02:57 PM
Quote:
Originally Posted by kevin_l (Post 650508)
New or used?
The ones in pic are new, I was just showing what they look like.

waynieZ 05-13-2017 04:56 PM
Hi Tim any word on how they (CHE) are holding up? I just got a set for mine.

71RS/SS396 05-14-2017 06:26 AM
Quote:
Originally Posted by waynieZ (Post 658786)
Hi Tim any word on how they (CHE) are holding up? I just got a set for mine.
So far so good, the updated slip-fit design is even better imho. Fwiw we just took an engine up to 8,900 rpm on the dyno with them and they were fine.

waynieZ 05-14-2017 10:18 AM
Wow 8900 that must have sounded sweet. That's what I loved about my 69 z/28 shifting at 8500, I love to hear them sing!

Jr 05-15-2017 12:31 PM
Slip-fit? I didn't see it listed on straub's website.

71RS/SS396 05-17-2017 03:35 AM
Quote:
Originally Posted by Jr (Post 658875)
Slip-fit? I didn't see it listed on straub's website.
The Straub bushings have to be pressed in. The CHE bushings are slip fit.

waynieZ 06-01-2017 03:56 PM
We did my rockers yesterday with the CHE trunnion kit.
It took no time at all to do the trunnion swap.

http://i172.photobucket.com/albums/w...psbf8dvjju.jpg

http://i172.photobucket.com/albums/w...psqfeoaowv.jpg

71RS/SS396 06-06-2017 03:06 AM
:thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup:

GregWeld 06-06-2017 05:21 AM
Quote:
Originally Posted by 71RS/SS396 (Post 660090)
:thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup: :thumbsup:



Had a very nice email exchange with your Dad yesterday.... no wonder you are such a good guy. He's very proud of you and Cheryl

1965_SS 06-21-2017 08:55 PM
Is it worth doing the CHE kit on a new GM crate LS3 525?

cjsgarage 06-23-2017 07:18 PM
Quote:
Originally Posted by 1965_SS (Post 661072)
Is it worth doing the CHE kit on a new GM crate LS3 525?


If you plan to spend a lot of time at high rpm, I highly recommend it. The offset rocker arms also have an extra amount of taper to the tip. The trued tip is worthwhile investment, I think. Saves the guides. And if it has the hollow valves, I've heard reports that it also keep the valves from dropping.. but I can't verify that from our own engine program.


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