Rise of the Phoenix

iTrader: (27)

Can anyone explain the beneftis of a 5 angle valve job on the intake side of some 243's. Brett at Land Speed offers a 5 angle race valve job on his stage 2 and 3 243/799 heads. Is that common? I've heard of 3 angle valve jobs, but not 5.

3rdCoastPowerSports

iTrader: (5)

5 angle valve job is typically used in racing application. a 5 angle valve job is, well how do you say it... badass

dr_whigham

iTrader: (49)

And that's the exact opposite from what I heard. I was told a 3 angle is for racing, and a 5 was for the street....

Rise of the Phoenix

iTrader: (27)

Can someone explain to me what a vlave job entails?

KCS

iTrader: (20)

A good valvejob is more about the angles than the number of angles. The extra angles are typically both under the bottom cut, and the number of angles doesn't necessarily make it only for a street application or race application. That would be more of a result of the angles themselves.

Rise of the Phoenix

iTrader: (27)

Good info there. Thank you. Do you know the number of angles the typical 243/799 head porters do; i.e. AI, TEA, TSP, etc.?

KCS

iTrader: (20)

It depends on the company, the extent of work (ie stage 1/2/3), etc. Four angles are actually very common, where they will come in with a 3 angle cutter (top, seat, and bottom cuts) and then come back with a 70-75 degree bowl cut.

Also, exhaust valvejobs can have twice as many angles as the intake in some cases.

Check out Newen's profiles:

http://www.newen.com/assets/PDF/TRAD...%20ENGLISH.pdf

Sales2@Texas-speed

iTrader: (5)

It doesn't really matter the number of angles as much as the angles themselves! And you rarely, if ever, see or hear any head porter share their data.

3rdCoastPowerSports

iTrader: (5)

well Matt since were talking about secret recipes and you know a boat load about this stuff... can you share some angles of cut with us? maybe some common high pro street angles vs some racing angles. all i know is there is ALOT of power available in a great valve job

dr_whigham

iTrader: (49)

I posted a similar thread a week ago and got "nada" from anyone......

https://ls1tech.com/forums/generatio...rees-cuts.html

gtotoocool1

iTrader: (6)

go on Speedtalk.com..there's some info on there,i believe.

studderin

iTrader: (28)

One has 2 more angles, thats it.

KCS

iTrader: (20)

I'd have to disagree, those two extra cuts can make a big difference in some cases. Of course, it depends on many variables throughout the induction path, but it can be of significant benefit.