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v6 vortec headssmokejaguar 06-23-2007, 10:49 PM Got a 96 4.3 vortec auto 2wd reg cab, and want to know about the heads and cam. What size are the intake and exhuast valves, combustion chamber size, compression, cam lift and duration. thanks Chris Stewart 08-16-2007, 09:40 AM hp cu.in. comp./ fueling/ rocker/lifter comb.vol. 170 262 9.2 / PFI / 1.50 /Hyd.Roller 62.0 cc 170 262 .025 deck, Flat w/n pistons, 1.940/1.500 I/E valves, .400/.393 lift You might call Comp Cams for duration numbers smokejaguar 08-16-2007, 03:42 PM thanks, thats great info. vBulletin®, Copyright ©2009, Jelsoft Enterprises Ltd.
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