LS7 v Comp R lifters?
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Joined: Apr 2005
Posts: 7,736
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
LS7 v Comp R lifters?
Any opinions on using the redesigned LS7 roller lifter ,supposed to good to 7K
( not the Caddy racing ones @ $230 ) v Comp "R" series ones?
( not the Caddy racing ones @ $230 ) v Comp "R" series ones?
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Joined: Nov 2002
Posts: 774
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From: Idaho Falls
Car: 82 Trans Am
Engine: LTX
Transmission: T56
Axle/Gears: 3.42 strengthed 7.5 inch
Re: LS7 v Comp R lifters?
There are some pretty strong opinions against the Comp "R" lifter if you go to camaroz28.com and look in the lt1tech section..
when rebuilding my engine I found that my comp "r"s had come apart on me like they had for so many others, I wouldn't use them again.
On my new setup I am running a stock roller lifter to 6800rpm with no troubles..
when rebuilding my engine I found that my comp "r"s had come apart on me like they had for so many others, I wouldn't use them again.
On my new setup I am running a stock roller lifter to 6800rpm with no troubles..
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Joined: Jan 2007
Posts: 251
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From: Northwest SC
Car: 91 RS
Engine: LT1
Transmission: T56
Axle/Gears: 3.42 LSD
Re: LS7 v Comp R lifters?
LS7's work great, but they have a shallow pushrod cup so you'll need to check your vavletrain geometry and get the correct pushrods.
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