I'm about to send my head in for a valve job and would like some insights on this subject. I’m not asking for seat angles. I’m just curious if it would be wise to do the same cut/angel for the intake as for the exhaust when doing a three angle valve job?
The angles I’m thinking about doing are 63/47/35 for the intake and 65/45/30 for the exhaust. Any comments will be appreciated. Thank you for looking.

 

I know some guys will cut the bottom on the intake differently when using long duration cams to prevent exhaust reversion. I've never done it, nor am i speaking from first hand experience, so someone should insert an actual experience now

 

Why the steeper angle for the intake?

 

Those angle sound good for a mild camshaft.

Do 45 instead of 47 on the intake for best lingevity.

 

not to threadjack but im takin my b16 head to get a 3 angle valve job next week the cams im using are brian crower stage 2 is there a specific angle i should tell them ?

 

Good ole 30/45/60 works really good for street motors. Motors that see less than 8500 rpms.

 

not to meaning to be nuccance but that is intake and exhaust ? and thanks

 

Yep intake and exhaust.

Depending on the quality and concentricity of the VJ, do a very light lap and clean off the grit very throughly and you will be coo.

 

thanks man you are unlike alot of people on here big thumbs up

 

use stock S2000 specs. it's a 4 angle job on the intake and 3 angle on the exhaust. i forgot the specs, but i have them written down at work.
that's what i've used every time i had a valve job done.

 

intresting. mind posting it when you have the chance. thanx

 

I was reading somewhere and it says 35/45/55 on both int and exh.

Any good with this valve angles??

 

Bump for more info and the S2000 valve angles.