There may be a new lifter option
02-09-2007, 12:37 PM
#17
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Location: Jacksonville
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02-09-2007, 12:49 PM
#18
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Join Date: Jun 2003
Location: Amarillo Texas
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Just ordered a set from SDPC today, for a 383 Le2
pt sd8689 217.85 /set
Ls7 Lifter preload according to ls1tech, 1 to 1-1/2 turns.
crane did some testing and found that .060" of preload (cold) is best for hp, using (there) lifter. Thats around 1-1/2 turns.. They claim they made 20hp more than using the standard 0.010" (cold)preload setting..
not sure if that applies to these lifters or not
pt sd8689 217.85 /set
Ls7 Lifter preload according to ls1tech, 1 to 1-1/2 turns.
crane did some testing and found that .060" of preload (cold) is best for hp, using (there) lifter. Thats around 1-1/2 turns.. They claim they made 20hp more than using the standard 0.010" (cold)preload setting..
not sure if that applies to these lifters or not
Last edited by roadtrip120; 02-09-2007 at 12:53 PM.
02-09-2007, 01:08 PM
#19
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Location: Raleigh, NC
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.060" is 1 1/5 turn on 7/16" studs and 1 1/2 turns on 3/8" studs, just in case anyone was wondering.
I'm guessing this would be better since it can keep more pressure on the lobes without losing compression or lift. Any more comments about what applications would require these and how to set them up, Bret?
I'm guessing this would be better since it can keep more pressure on the lobes without losing compression or lift. Any more comments about what applications would require these and how to set them up, Bret?
02-09-2007, 01:33 PM
#22
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Join Date: Mar 2002
Location: Waynesboro, PA
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Wow, I'm glad to see the reception to these. I wasn't sure if I was off my rocker or not when I posted this because I thought someone has got to know about them and mentioned it here.
Whoever had it, thanks for the part number. I was just getting ready to find it.
Mainly, I'm just glad that there's a less expensive but quality alternative now.
Whoever had it, thanks for the part number. I was just getting ready to find it.
Mainly, I'm just glad that there's a less expensive but quality alternative now.
02-09-2007, 02:15 PM
#23
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Join Date: Mar 2002
Location: Ocala, Florida
Posts: 3,245
.060" is 1 1/5 turn on 7/16" studs and 1 1/2 turns on 3/8" studs, just in case anyone was wondering.
I'm guessing this would be better since it can keep more pressure on the lobes without losing compression or lift. Any more comments about what applications would require these and how to set them up, Bret?
I'm guessing this would be better since it can keep more pressure on the lobes without losing compression or lift. Any more comments about what applications would require these and how to set them up, Bret?
Last edited by speed_demon24; 02-09-2007 at 02:17 PM.
02-09-2007, 10:37 PM
#29
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Join Date: Mar 2002
Location: Newark, Delaware
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OK..I'm trying to figure all this out. I always adjust my valves with the motor running. When I did my CC305 cam with COMP "stock replacement" lifters, I went 1/4 turn past "chatter". Wouldn't 1 turn past zero equal 1 turn past "chatter" with the engine running?
Frank
Frank
02-09-2007, 11:33 PM
#30
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Join Date: Dec 1969
Location: Little Rock, AR
Posts: 27,714
At the point where chatter just stops, that should be effectively zero lash.