Bigger valves, larger valve seat needed??

Reply Subscribe

Thread Tools

Search this Thread

06-01-2006, 11:22 PM

#21

xfactor_pitbulls

TECH Addict

iTrader: (16)

Join Date: Jul 2004

Location: Nevada, TX

Posts: 2,218

Likes: 0

Received 0 Likes on 0 Posts

Plain ole stock ls1 valves arent worth much aside from scrap. Hell, I have (2) 5 gallon buckets nearly full.

Reply Like

06-01-2006, 11:25 PM

#22

xfactor_pitbulls

TECH Addict

iTrader: (16)

Join Date: Jul 2004

Location: Nevada, TX

Posts: 2,218

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by Studytime

Am I really seing this correctly? For clarification, if I had a set of 862s with a full-radiused valve job on the stock seat, you could just simply add a set of 2.02 and 1.60" valves? Would there be any advantage to adding a larger seat, if the stock seat was blended into the bowl?

Ben T.

No, I mean yes, but it will not yeild the correct results. Firstly you should open the throat an extra .020, and cut the top angle wider to accomodate the larger valve. Otherwise you run a risk of not having a great seal. Valve seat cutters are usually accepted at .002 tolerance. .002 would be fine, however now you add an extra .002 to that and can possibly be .004 off. Atleast get a new top angle and widened throat.

Brandon

Reply Like

06-02-2006, 07:37 AM

#23

bigredexpress99

TECH Resident

iTrader: (15)

Join Date: Jan 2005

Location: Omaha, NE

Posts: 932

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by xfactor_pitbulls

Plain ole stock ls1 valves arent worth much aside from scrap. Hell, I have (2) 5 gallon buckets nearly full.

Dude, just stating I have some for people who might want to up size thier 5.3 heads. I have some stuff laying around, why not get rid of it. I wasnt asking for the world was I? Holy Crap.

P.S.: I'm not really pissed, figured I'd make it look like it

Reply Like

Reply Subscribe