PRH
Well-Known Member
I checked one of the ones here.
It was 140@the 1.820 installed height.
145@1.800
300@1.300
317@1.250
332@1.200
This is a 311lb/in spring.
I think it’s the same springs as that previous set I had here, but for some reason those heads came with more installed height.
(They went on a motor with a .480 lift cam.
If the springs were at 1.850 installed height, you’d have 130 on the seat and 279@.480 lift, which is about how I remember them being.)
This set of heads does not have the 1.900 installed height that’s listed in the specs, and the springs are not 1.250” diameter.
I don’t know how it is that so many of these parts places can’t get the simple specs correct in their catalogs.
It was 140@the 1.820 installed height.
145@1.800
300@1.300
317@1.250
332@1.200
This is a 311lb/in spring.
I think it’s the same springs as that previous set I had here, but for some reason those heads came with more installed height.
(They went on a motor with a .480 lift cam.
If the springs were at 1.850 installed height, you’d have 130 on the seat and 279@.480 lift, which is about how I remember them being.)
This set of heads does not have the 1.900 installed height that’s listed in the specs, and the springs are not 1.250” diameter.
I don’t know how it is that so many of these parts places can’t get the simple specs correct in their catalogs.
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