What valve springs should i choose?

[Caprimaniac]

Well, Barry. I am not sure if I understand what the concern is with installed height....
I will shim the springs to spec, might also measure rate (if I buy in a preassure checker).

Also forgot to say; will have Ti retainers (and locks) + shaft mounted rockers.

It gos as follows:

Above values are for springs installed at

1: 1.800"

2: 1.850"

3: 1.900"

[blykins]

He's just saying that springs are designed for a certain install height.

You wouldn't use a spring designed for a 2.000" install height on an engine that mics up at 1.700", etc. This would wreak havoc on the spring pressures and coil bind clearance.

The springs that he posted most likely wouldn't work for your application as the Victor Jr's have a 1.900" install height out of the box. Unless the valves have been changed or the heads modified, this is most likely what you'll encounter. With that in mind, you need to pick a spring that is inline with that spec.

The springs that Barry mentioned are a much smaller diameter dual spring, so lighter retainers can be used, spring mass is lower, etc. This helps on required spring pressures; just like using a beehive spring.