valves for indy sr,s

Posted By: Old School

valves for indy sr,s - 10/15/09 09:15 PM

i keep wearing out the intake valves in my sr,s.

they are the ones supplied with the heads.is there a better longer lasting valve for these heads? they are 2.19". where would i get them?

Posted By: Anonymous

Re: valves for indy sr,s - 10/15/09 09:20 PM

Manley has them---call Marsh Performance 336 752 2879 for your best deal

Posted By: Old School

Re: valves for indy sr,s - 10/15/09 09:31 PM

Quote:

Manley has them---call Marsh Performance 336 752 2879 for your best deal

what do i ask for,there best?

Posted By: Brian Hafliger

Re: valves for indy sr,s - 10/15/09 09:46 PM

I use Ferrea. They flow better and I think they are better quality.
Just ask for the Indy replacement valves and they'll be right.

Posted By: Old School

Re: valves for indy sr,s - 10/15/09 09:52 PM

Quote:

I use Ferrea. They flow better and I think they are better quality.
Just ask for the Indy replacement valves and they'll be right.

wheres the best place to get them? also,is it worth it to go up to 2.25"? its on a :
500"
13.4 cr
272/276 .750" solid roller.
sr 295 cnc
about how much more cfm?

Posted By: dodgeboy11

Re: valves for indy sr,s - 10/16/09 01:46 AM

Quote:

Quote:

I use Ferrea. They flow better and I think they are better quality.
Just ask for the Indy replacement valves and they'll be right.

wheres the best place to get them? also,is it worth it to go up to 2.25"? its on a :
500"
13.4 cr
272/276 .750" solid roller.
sr 295 cnc
about how much more cfm?

First, what's wearing out on the valves? The stems, the tip or is the head tuliping? What kind of seals are you running on there and how much guide clearance do you have? I think it's worth going to the larger valve, provided there's some portwork to go along with blending in the larger valve job. Average CFM increase? That I can't tell you but I did get a set of Perf RPM heads to flow 345 with a 2.250 valve and a max wedge port. So I can only imagine how much better the SR's would respond to it.

Posted By: Anonymous

Re: valves for indy sr,s - 10/16/09 02:31 AM

Quote:

I did get a set of Perf RPM heads to flow 345 with a 2.250 valve and a max wedge port. So I can only imagine how much better the SR's would respond to it.

care to share a picture of that?

Posted By: Old School

Re: valves for indy sr,s - 10/16/09 03:49 AM

it is the stems that keep wearing out.i use the viton seal.
i thought i read a post awhile ago from dwayne porter about having to do something about the guides in theese heads.

Posted By: AndyF

Re: valves for indy sr,s - 10/16/09 04:32 AM

It is just a standard plus size Chevy big block valve so you can find them from most everyone.

Posted By: brktracr

Re: valves for indy sr,s - 10/16/09 07:16 AM

I second the Ferrea, Brian put them in my SR's and I've been extremely happy with the heads and the work he did on them.

Posted By: moparmxz

Re: valves for indy sr,s - 10/16/09 12:01 PM

I,ve run the sr heads with no excessive stem wear in 8 years.Granted i run a small cam(.620),maybe you have some kind of geometry problem.

Posted By: Old School

Re: valves for indy sr,s - 10/16/09 05:06 PM

Quote:

I,ve run the sr heads with no excessive stem wear in 8 years.Granted i run a small cam(.620),maybe you have some kind of geometry problem.

my cam is a .661 solid roller.i use indys 1.6 rocker arm kit with a roller tip.the pushrods are the right length.i have this exact combo on three motors.all of them wear the stems to fast.
im rebuilding one now and im trying some 1.7 t&d,s.if that fixes it,i will swap the others over too.

Posted By: Old School

Re: valves for indy sr,s - 10/16/09 05:30 PM

Quote:

Manley has them---call Marsh Performance 336 752 2879 for your best deal

ordered them today.you were right,awesome deal,i mentioned your username,thanks

Posted By: Anonymous

Re: valves for indy sr,s - 10/16/09 07:19 PM

Life ain't as complicated as folks make it out to be

and Andy is right--Chevy .100 long and there ya go from anywhere--I think DairyMart has those but the Manleys from Todd will do the trick-- and I bet cheaper than Ferrera which are good too.