Valve diameter measurement?

I received a bare set of oem iron heads that a truck puller had used several years ago. What do I measure to determine what valves it is set up for? He can't remember, so I'm trying to figure out what I need to look for.

if i was going to measure them i would from the 45* cut , can you tray a valve thats close and use some of that blue stuff to mark the diff ...... im sure the head gurus would chime in

bruno wrote:if i was going to measure them i would from the 45* cut , can you tray a valve that's close and use some of that blue stuff to mark the diff ...... im sure the head gurus would chime in

YEP ... measure the outside diameter of the seat.

Ok, from the measurements, I believe they are the stock diameter. These heads are D2OE-AB's. So if my research is correct they require 2.19 and 1.72 valves with .341 diameter stems. Question is what length do i need? The cam I plan to use is a .600 lift.

Thanks again for your help.

HorsinAround wrote:Ok, from the measurements, I believe they are the stock diameter. These heads are D2OE-AB's. So if my research is correct they require 2.19 and 1.72 valves with .341 diameter stems. Question is what length do i need? The cam I plan to use is a .600 lift.

Thanks again for your help.

The stock production intake valve diameter in a Police Interceptor head was 2.200", (5.185" long, 30 degree seat) ... the stock production exhaust valve diameter was 1.725", (4.978" long, 45 degree seat).

Thank you for the reply. Will I need a longer valve with the bigger cam lift?

HorsinAround wrote:Thank you for the reply. Will I need a longer valve with the bigger cam lift?

Maybe ... maybe not.

It's all about whether or not you can get the correct valve spring installed height.

rmcomprandy wrote:

HorsinAround wrote:Ok, from the measurements, I believe they are the stock diameter. These heads are D2OE-AB's. So if my research is correct they require 2.19 and 1.72 valves with .341 diameter stems. Question is what length do i need? The cam I plan to use is a .600 lift.

Thanks again for your help.

The stock production intake valve diameter in a Police Interceptor head was 2.200", (5.185" long, 30 degree seat) ... the stock production exhaust valve diameter was 1.725", (4.978" long, 45 degree seat).

Would you happen to have a part number or where I can get them?

Competition Products

Part# E2903-1(change the one to a 8 for full set) $12.99 each

Part# I2904-1(again change the 1 to 8 for full set) $13.29 each

I have used Competition Products valves in 4 different builds with zero issues and long service life.

Competition Products 1-800-233-0199

These are one piece severe duty stainless steel valves.

rmcomprandy wrote:

HorsinAround wrote:Thank you for the reply. Will I need a longer valve with the bigger cam lift?

Maybe ... maybe not.

It's all about whether or not you can get the correct valve spring installed height.

What is the correct valve spring installed height? I bought an intake and exhaust valve from Comp. products and put them in along with a retainer and locks. From the casting seat to the underside of the outer step of the retainer I measured 1.925 on the intake and 1.976 on the exhaust. Also the recommended spring for the cam I have is a comp cams 928 if that helps.