Stock Valves Vs Aftermarket
Re: Stock Valves Vs Aftermarket Aftermarket valves are usually made with better materials than stock valves. Also lighter in weight. + if you upgrade with a stage 2 or 3 cylinder head you'll need larger aftermarket valves.
TECH Addict
Joined: Dec 2001
Posts: 2,298
Likes: 2
From: new england
Re: Stock Valves Vs Aftermarket Stock valves can outflow aftermarket valves very easily. GM has valvejob and shape down pat, so it is hard to beat.Any application with forced induction or large dose of nitrous would benefit from aftermarket valves reliability.
Re: Stock Valves Vs Aftermarket I agree with LS1derful. I have consistently dyno'd over 400rwhp with stock valves with my current heads.. There was a dyno day at Norris Motorsports on Saturday and I left Dyno King for that day.. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Don't ask my dyno #'s.. I am not telling..
Re: Stock Valves Vs Aftermarket </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LS1derfull:
<strong> Stock valves can outflow aftermarket valves very easily. GM has valvejob and shape down pat, so it is hard to beat.Any application with forced induction or large dose of nitrous would benefit from aftermarket valves reliability. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I take it you're talking about backcutting the valves?
Brad
<strong> Stock valves can outflow aftermarket valves very easily. GM has valvejob and shape down pat, so it is hard to beat.Any application with forced induction or large dose of nitrous would benefit from aftermarket valves reliability. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I take it you're talking about backcutting the valves?
Brad
Re: Stock Valves Vs Aftermarket Hey Vince, I think Gary has a new apron, which looks a lot like the Polo shirt you wore there...
Why aren't you tellin'? I won't repeat it, but I know what they were <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
Why aren't you tellin'? I won't repeat it, but I know what they were <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
Re: Stock Valves Vs Aftermarket I did forget my shirt. Oh well, one day I will get it. I decided this time to keep things to myself. I am tired of doing test and tune for others. Especially, when I know that some lie about their #'s. I am pulling a Chris Pippy on this one..
