roller lifter question, please help
03-14-2011, 01:40 PM
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roller lifter question, please help i purchased a 98 ls1 that was apart. the person that disassembled the engine did not mark the the lifters. im debating about running the stock cam or not, but regardless of that , do i need to put new lifters in it since i do not have any idea which location the lifters come out of. i would not be asking this question except for the fact that chiltons specifically says that you should always change the lifters on a new cam and to always run the lifters on the same lobe on an existing cam. i assumed, being a roller, that there was no need to change lifters or worry about it until i read the chiltons hoping to gain some useful knowledge. also, if you have a cam recomendation for me that would be great. it will be a 3000 lb truck with a stock converter, 373 gears, 29 inch tires, headers and dual 2.5 inch exhaust and a better air intake. pretty much stock on the rest of it. it will be daily driven and gas mileage is a concern. a nice lope would be good, but not most important. performance and mileage is most important. any help is greatly appreciated. thanks kevin
03-14-2011, 01:58 PM
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Yes even though they are roller lifters, there is still a wear pattern tha develops, the cam actually has a little movement front to rear also. Although the circumstances are different from a flat tappet setup, it is always best to put new lifters on a new cam. a new set of LS7 lifters goes abot 130 bucks, and will probably require new pushrods as well, due to the cup position being higher than the stock LS1 lifter which I dont think you can even buy anymore. You could always clean your parts up and put it together, and it may run for a long while, or it may run for a very short while. Gotta wonder whay you got the engine in pieces... If you do decide for a new cam and lifters I would say one of TSPs torquer series cams will give you what you are after. Hope this helps
03-14-2011, 04:37 PM
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i purchased a 98 ls1 that was apart. the person that disassembled the engine did not mark the the lifters. im debating about running the stock cam or not, but regardless of that , do i need to put new lifters in it since i do not have any idea which location the lifters come out of. i would not be asking this question except for the fact that chiltons specifically says that you should always change the lifters on a new cam and to always run the lifters on the same lobe on an existing cam. i assumed, being a roller, that there was no need to change lifters or worry about it until i read the chiltons hoping to gain some useful knowledge. also, if you have a cam recomendation for me that would be great. it will be a 3000 lb truck with a stock converter, 373 gears, 29 inch tires, headers and dual 2.5 inch exhaust and a better air intake. pretty much stock on the rest of it. it will be daily driven and gas mileage is a concern. a nice lope would be good, but not most important. performance and mileage is most important. any help is greatly appreciated. thanks kevin
03-21-2011, 07:58 AM
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thanks guys thanks for all of the info, i still am kiching around what to do. sounds like the safe thing to do is buy new ones if the budget allows. i will check out that cam recomendation. thanks again kevin