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Old 06-22-09, 03:23AM   #1
Sergef
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Default lifters id and springs question

I bought these lifters 2 years ago for a project that never happend. I forgot what brand they are. I think it's UD. Are these ok for a limited street use?
I have a set of 62 heads with comp 995 springs. Can 995 springs handle around 240-250 duration at 050 or do I need another set of springs? I am trying to put something together quick while I am collecting and building a good motor. Thanks
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Old 06-22-09, 10:33AM   #2
Mr. PBody
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Serge,

They LOOK like the older Comp 959-16, but can't swear to it. The more modern version has a removable link bar.

What is the lift of the cam? Spring requirements stem from lifter type (solid roller here) and max-lift. Duration has little to do with spring selection. That being said, I doubt the 995s are "up to" the task of a solid roller.

Jim
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Old 06-22-09, 12:02PM   #3
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They have a removeable bar (twist sideways) and Comp is the only one I know that makes em that way for Pontiacs. Most rollers will require a min of 165 seat and that's with mild grinds & soft ramps. Most rollers I run or install set at 190. Don't forget the lifter bore brace depending on the seat and open pressure. #2 & #6 lifter bores take a beating.
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Old 06-22-09, 03:21PM   #4
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Looking at them further, Ken may be right. It's hard to see the top without glare. If the bars are "removable", they're Comp "Endurex". Good stuff.

Jim
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Old 06-22-09, 05:08PM   #5
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Quote:
Originally Posted by Mr. PBody View Post
Looking at them further, Ken may be right. It's hard to see the top without glare. If the bars are "removable", they're Comp "Endurex". Good stuff.

Jim

You just getting old. Go get your glasses updated. LOL
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