Does anyone know the specifications of other valve springs ie: atomic, performance, nizpro etc

Also is anyone running Crow Cams Valve springs part number 1808-24 or VTKBA6T-24 with retainers

The specs for 1808-24 are:

INST.Height. 1.44''

INST.Pressure. 90

Pressure @ .5 Lift. 195

Max Lift. 0.55''

Solid Height. 0.90''

Are these any good for 300rwkw

I got my set for $400 with retainers.

Or you can get a race set. Specs:

INST.Height. 1.44''

INST.Pressure. 115

Pressure @.5 Lift. 225

Max Lift. 0.55''

Solid Height. 0.90''

Edited June 4, 200917 yr by F6RD

You got the 1808-24 with retainers? You know you could use factory retainers with the 1808. The ovate 1809 has a little too much seat pressure with standard retainers so crow have a .030" offset retainer to reduce pressure.

Yeah I got the 1808-24 with reatiners.

Fair enough, so I didnt need the retainers.

Bloody salesman could have told me I didnt need them SOB.

but I guess the question im asking is, are the specs good and are they a good Valve spring?

I don't know from personal experience but I don't see them being too different to the other springs on offer.

I have crow valve springs and pushing 375rwkw but I paid $900 with retainers

The ovate AlphaIII springs and retainers are being sold for 500 on ebay ATM. Bargain. Got mine

http://cgi.ebay.com.au/ws/eBayISAPI.dll?Vi...em=160340235460

Mate I have standard valve springs on a ba and 300RWKWs so if you cant find 300 then whats the point

BA valve springs are troublesome. Even with a factory tune, a BA will pull harder from around 4000rpm with valve springs.

Mate I have standard valve springs on a ba and 300RWKWs so if you cant find 300 then whats the point

mine started to shiit emselfs after a 12psi tune.

got crows put in n now running 14psi daily with no issue.

Mate I have standard valve springs on a ba and 300RWKWs so if you cant find 300 then whats the point

You were pretty lucky then Mate, not having to install new valve springs, cause its exy.

Edited June 9, 200917 yr by F6RD