better to be deep or shallow? push rod wise :)
10-19-2010, 06:15 PM
#1
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better to be deep or shallow? push rod wise :) so i just measured for push rod length and came up with 7.310+.050 preload
so 7.360 push rod but the available push rods are 7.350 and 7.375
so is it better to be .010 short or .015 long ?
ls7 lifters
yella-terra rockers
afr heads 60cc's
tsp 228r cam
926 springs
titanium retainers
stock gm mls gasket
so 7.360 push rod but the available push rods are 7.350 and 7.375
so is it better to be .010 short or .015 long ?
ls7 lifters
yella-terra rockers
afr heads 60cc's
tsp 228r cam
926 springs
titanium retainers
stock gm mls gasket
10-19-2010, 06:31 PM
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I would think the 7.375's would be quieter and still within the 1-1/4 to 1-3/4 turn tolerance.
I'm at 2 turns right now so I figure I need a 7.375 also to get back into the tolerance.
I'm at 2 turns right now so I figure I need a 7.375 also to get back into the tolerance.
10-20-2010, 06:54 AM
#6
It is quieter and I don't like getting too close to the plunger clip at the top of the lifter, in a pump up situation you can (some here have done it) knock the clip out and then the lifter comes unglued. GM also has a recommended range for the lifters and I don't recall it being that shallow. Also, some have stated that less preload provides more power, but I have never seen any data to back it up. (These are just my thoughts on it)
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10-20-2010, 08:09 AM
#8
It is quieter and I don't like getting too close to the plunger clip at the top of the lifter, in a pump up situation you can (some here have done it) knock the clip out and then the lifter comes unglued. GM also has a recommended range for the lifters and I don't recall it being that shallow. Also, some have stated that less preload provides more power, but I have never seen any data to back it up. (These are just my thoughts on it)
