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difference between cam/valvetrains?

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Old Jan 6, 2008 | 05:52 PM
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jeremy_warner's Avatar
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difference between cam/valvetrains?

So, as you guys have noticed probably, i'm inexperienced with engines, and such. I'm wondering what the difference between hydraulic flat tappet, mechanical rollers, hydraulic roller cams are. and, what the pros/cons are.

and, what the L98 engines are.
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Old Jan 6, 2008 | 07:03 PM
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Sonix's Avatar
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: difference between cam/valvetrains?

L98's use a hydraulic roller cam.
See my sig, there should be a link to a quick tech article I wrote with some basic info on that exact topic. Read it, and post back any follow up questions you have.
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Old Jan 6, 2008 | 07:51 PM
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jeremy_warner's Avatar
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Re: difference between cam/valvetrains?

Thanks, i really appreciate the help. It clears alot of things up, and i'm thinking about pocket porting my L98 plenum, runners, base plate. fabbing some hooker/heddman headers(welding bungs/fitting AIR tubes), and hopefully make a 'better car' for the money then what i can buy?
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