Ls7 Lifters
k..anyone know the stock GM double roller timing chain number and a good vented Opti spark to go with? I want to upgrade to the better Opti and timing chain during my cam install.
The stock GM timing chain is not a double roller. Only options for "upgrades" really are a double roller SBC chain if you use an electric waterpump (you have to clearance the inside of the timing cover if you do this though), or the LT4 "Extreme Duty" set. Most cars will do fine with just a new stock replacement though.
Also, for Optis, either go with a new AC Delco one (or Delphi from "thepartsladi" on ebay), or get an MSD.
Also, for Optis, either go with a new AC Delco one (or Delphi from "thepartsladi" on ebay), or get an MSD.
The stock GM timing chain is not a double roller. Only options for "upgrades" really are a double roller SBC chain if you use an electric waterpump (you have to clearance the inside of the timing cover if you do this though), or the LT4 "Extreme Duty" set. Most cars will do fine with just a new stock replacement though.
Also, for Optis, either go with a new AC Delco one (or Delphi from "thepartsladi" on ebay), or get an MSD.
Also, for Optis, either go with a new AC Delco one (or Delphi from "thepartsladi" on ebay), or get an MSD.
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The stock GM timing chain is not a double roller. Only options for "upgrades" really are a double roller SBC chain if you use an electric waterpump (you have to clearance the inside of the timing cover if you do this though), or the LT4 "Extreme Duty" set. Most cars will do fine with just a new stock replacement though.
Also, for Optis, either go with a new AC Delco one (or Delphi from "thepartsladi" on ebay), or get an MSD.
Also, for Optis, either go with a new AC Delco one (or Delphi from "thepartsladi" on ebay), or get an MSD.
The LS7 lifters are a direct replacement lifter for LT1's. They are the only thing that all LS based motors and LT can share. If you go to the dealer to order LT1 lifters the LS7's are what you will get because they are just the same thing but revised to better handle the high rpm's of the LS7 motor.
The LS7 lifters are a direct replacement lifter for LT1's. They are the only thing that all LS based motors and LT can share. If you go to the dealer to order LT1 lifters the LS7's are what you will get because they are just the same thing but revised to better handle the high rpm's of the LS7 motor.
Sweet! Good to hear. Sometimes I wonder about these part shops and their knowledge on performance products...9 times out 10 they know about as much as my 6 year old daughter..which is pretty much nothing
I hear ya just call Comp Cams and you will become stupider after hearing what they have to say. May grab some LS7's myself because my lifters may be no good but anyways no worries they will work for ya!
Thanks bro! And I hear you on comp cams customer service..they are horrible there
Also they recommended a flat tappet camshaft to someone once for their LT1 when we have hydraulic roller camshafts lolol smart guys. 
Yeah, I've been meaning to talk to you about this whole "Go green thing man" lol
sry its been over 3 years and still no clue how to double quote lol
Last edited by StealthFormula; Jul 29, 2008 at 09:22 PM.