bigger valves in afr 205
05-12-2005, 06:20 AM
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bigger valves in afr 205 Hi there , im new to ls1tech so hi everone. Has anyone put larger valves in there afr 205's and if so how did the heads go with them in, i just go my heads delivered they look the goods and am very happy with quailty.
05-12-2005, 08:35 AM
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I didn't put larger valves in but I changed my intake valve to the new Ferrea lightweight hollow stems. Thought I floated some when my clutch stayed on the floor at the top end last time at the track. Turns out I dodged a bullet, but they are in for a little extra insurance.
I don't know if you have done this, but a lot of guys are having the 205's milled .024" to bump the compression. You might want to consider it. Also, try to get your quench distance between .035" and .040". That should give you ~11:1 CR and the tight quench should help with knock.
I don't know if you have done this, but a lot of guys are having the 205's milled .024" to bump the compression. You might want to consider it. Also, try to get your quench distance between .035" and .040". That should give you ~11:1 CR and the tight quench should help with knock.