Just .502/.511” comp XE274-S
I was willing to sacrifice lightweight for durability.
This is what we did to prep/tweak them for install:
You do not need bananna grooves because the rocker have the large open area in the center to hold oil. We noticed some of the bronze inserts were barely sticking past the rocker housings. Taking the extra step, we flat sanded the sides so they had more bearing area.
The holddowns are Mopar Performance
We had to fit the holddowns and spacers to get the rocker side spacing spec that Comp called for. They did not need shims as the hold downs were plenty wide and had to be narrowed anyways. Started with the center rockers and worked our way outwards. When finished, each hold down and rocker was number and direction stamped to keep its fitted place. So if it gets taken apart in the future, the order and direction is handled.
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Hold down fitting for rocker side clearance spec:
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