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Which lifters?

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Old 02-08-2010, 10:09 AM
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Default Which lifters?

I was going to go with ls7's but i will need to order new push rods and since mine are pretty much brand new i dont really want to do that... is there any lifters out there that can be used with the 7.400 push rods???
Old 02-08-2010, 10:40 AM
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LS7's can be used with the 7.4's. They are the stock replacement lifter.
Old 02-08-2010, 11:02 AM
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i have been reading up on them and everyone is saying the cup is either higher or lower i can remember, so in turn i will either need longer or shorter push rods...
Old 02-08-2010, 11:26 AM
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what is the rest of your setup? milled heads? cam specs? what rockers? what head gaskets?
Old 02-08-2010, 12:14 PM
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Torquer v2 232/234 .595.598, ls6 heads not planning on any milling and stock head gaskets
Old 02-08-2010, 12:15 PM
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stock rockers also lol sorry
Old 02-08-2010, 12:36 PM
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i have the comp 850 oem style lifters with a 7.4 pushrod and works fine.
Old 02-08-2010, 12:37 PM
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The 7.4's should be fine with the LS7 lifters. The LS7's are said to be slightly taller than the LS1 lifters, but I don't remember how much. With that cam grind some people will run 7.425" pushrods to compensate for the reduction in the base circle, so the lifters being a bit taller should work out good.
Old 02-08-2010, 12:43 PM
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^^^^ 5.3 is right on that one. You dont buy lifters to fit your pushrods. Brad new/near new pushrods are worth something. You sell yours to offset the cost of new ones if you need them. I still recommend measuring.
Old 02-08-2010, 12:48 PM
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Ok cool thanks guys, i will do the ls7's and pick up a push rod length checker
Old 02-08-2010, 01:24 PM
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For the record, I sold my low mileage pushrods for $70 and went in $110 for some new ones. So $40 bucks to know its done right. Money well spent




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