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-   -   600 ci NA build (https://www.offshoreonly.com/forums/general-q/351197-600-ci-na-build.html)

getrdunn 01-15-2018 05:35 PM

T&d's are rebuildable also. From all the research I've done they're A1. I'm gonna try the yella Terra's I'm pretty certain due to my head guys advice.. Otherwise the T&d's. Not down grading the Jessels just don't seem to hold up as well but still used by many. Like anything else just depends. Everything is breakable.

I think you'll be fine with ruiteen maintenance. Just have to keep a close eye on things. Doesn't sound like you take long day trips rather just going out for a couple few hours and rip around and call it a day. I think it will be a riot just keep a close eye under the hatches and valve covers.

Single cat 01-15-2018 05:40 PM

I am now in one bit worried about the valve train. Like anything even jesel makes a less expensive style rocker arm. In our case they use have all the upgrades.

GPM 01-15-2018 06:16 PM

You might want to use steel vs aluminum

Single cat 01-15-2018 06:20 PM

We are using steel exhaust rockers.

GPM 01-15-2018 06:25 PM

And why not both ? did you happen to look at the Crower stainless.

Single cat 01-15-2018 06:33 PM

My engine guy and had talked about putting steel on both but he did not see a need for it with the lifter wheel diameter we are using and lobe design.

GPM 01-15-2018 06:43 PM

Did he read the fine print on the aluminum rockers where they discuss duty cycle, is it really worth waiting to see what happens when one of them break at 7000 rpm. Just for fun, check out all of the used Jesel aluminum rockers for sale. Good luck

Single cat 01-15-2018 06:55 PM

There is alot of race engines and performance marine stuff out there that turn 7000 rpm and don t run steel rockers. Our race engine is 855 ci run 1/4 mile at 8000 rpm and we run 50 runs before and freshen up and it does not have steel intake rockers. And the ones on it know have 100 passes on them and have only had the tips replaced on them. And the cam is well over 1 inch lift

GPM 01-15-2018 07:18 PM

Hey, run what you want, a hundred 8 second passes equals what in minutes. Like I said, best of luck to you.

underpsi68 01-15-2018 09:25 PM


Originally Posted by getrdunn (Post 4604971)
T&d's are rebuildable also. From all the research I've done they're A1.

Yes T&D's can be rebuilt. My engine is apart now and I thought it will be a good idea to have them inspected at least. My rockers arrived at T&D today.


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