Drilling holes in your lifter retainers
#22
Launching!
I did my drilling also, no mishaps, but the lower part of the trays where full of gunk, thick, black soothy, (I use good quality oil) and the trays where very difficult to clean also the flashing from the plastic must be cleaned, deburred and all sharp edges cleaned with dowel and sandpaper, and be REALLY shure not a small spaec of plastic CAN fell to the oil::::
#25
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I understand that you only drill out one side, and the postion is important too. Are you guys drilling out the LS2 lifter trays also. I have some on the way and understand they are beefier and fit the LS1.
#30
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See: https://ls1tech.com/forums/generation-iii-internal-engine/848915-lifter-retainer-modification.html
Measurements: Note: I only drilled one side, the background makes it look like I did both sides.
#33
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I won't say don't do it but I will state that this "mod" is intended to prevent oil starvation in "sustained high RPM" engines. In esscence you are allowing oil to drain out of the lifters and return to the pan faster. If you are tracking the car every once in awhile toss an extra half quart of oil in the pan and call it a day. Me, I prefer to have my lifters well oiled.
Just my $.02, which like anything based on the dollar anymore isn't worth much
Just my $.02, which like anything based on the dollar anymore isn't worth much
#39
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I'm doing this today.
Just a heads up> Those dimensions shown on the photo ARE NOT CORRECT!!! Don't use the 1 5/16" dimension shown. The actual measurement should be about 11/16" for what is shown. The 1/2" dimension is correct.
George
Just a heads up> Those dimensions shown on the photo ARE NOT CORRECT!!! Don't use the 1 5/16" dimension shown. The actual measurement should be about 11/16" for what is shown. The 1/2" dimension is correct.
George