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Does anyone know the maximum lift of the stock heads on the 1998-2002 Firebird? I need to find out what ratio rockers I can use with the aftermarket cam I'm getting. Thanks
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Re: Stock heads maximum lift
Need to post what cam and what the specs of the cam are.08' L76 6.0L 4X4 Chevy EXT.Cab LTZ Vortec MAX with Snug top cover, Dynomax exhaust,Hptuners& K&N intake
96' Camaro M5 to A4 conversion, alot of mods . GT35R Turbo full suspension. Built engine -
Re: Stock heads maximum lift
To be honest you should get the cam with the lift you want and not use rockers to add more. The stock rockers are actually fairly efficient since they have a roller pivot just not a roller tip.2001 Arctic White Firebird With Black Drop Top<br /><br />3:42 Gears<br />Zexel LSD<br />BMR upper A-Arms<br />Trans Am exhaust with 3\" I-pipe and cutout<br />Modified intake<br />Mecham Hood<br />Trans Go shift kit<br />Making rear control arms and panhardComment
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Re: Stock heads maximum lift
what is the ratio of the stock rockers? Can you just tell me what the max lift of the stock heads are?Last edited by DHiser27; 06-30-2007, 07:31 PM.Comment
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Re: Stock heads maximum lift
Stock rockers are 1.6. I'm not sure of the max lift right off. Have you tried searching yet? I'm sure someone has posted it by now.2001 Arctic White Firebird With Black Drop Top<br /><br />3:42 Gears<br />Zexel LSD<br />BMR upper A-Arms<br />Trans Am exhaust with 3\" I-pipe and cutout<br />Modified intake<br />Mecham Hood<br />Trans Go shift kit<br />Making rear control arms and panhardComment
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Re: Stock heads maximum lift
Well I haven't found anything after a quick search so I geuss someone does need to answer this.2001 Arctic White Firebird With Black Drop Top<br /><br />3:42 Gears<br />Zexel LSD<br />BMR upper A-Arms<br />Trans Am exhaust with 3\" I-pipe and cutout<br />Modified intake<br />Mecham Hood<br />Trans Go shift kit<br />Making rear control arms and panhardComment
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Re: Stock heads maximum lift
Yeah I've searched for it...thanks though T-punk. Some help guys?Comment
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Re: Stock heads maximum lift
Ive heard .515 is the max lift before the stock ls1 type retainers hit the valve seal. But this can be pushed further by modified retainers and viton valve seals. ZZP says the combination of those 2 will give you .05 more. If thats true, then you would be able to run .565 lift.
I have also seen ZZP post that gains from more lift become very minimal on stock heads after .510.92 S10 3800 A4(96)<br />1/4: 14.374 @ 92.25 w/ 1.976 60\'<br />Turbo and 12\'s Coming Soon!Comment
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