Pro Stock John

iTrader: (34)

Any springs that sound like this out there?

-450 open/155-160 closed
-Good for 600-630 lift cam
-I'm running .100 longer valves
-Looking to stay at 1.46 diameter springs

I was looking at the KMotion 750's, but they are only rated to up to 600 lift?

Any thoughts?

Ed Curtis

Installed height?

Ed

Pro Stock John

iTrader: (34)

1.80 ish?

Pro Stock John

iTrader: (34)

So far the Comp 977's are looking interesting.

Ed Curtis

Well....

How do I put this???

I have what I "think" would fit the criteria but I'm not supposed to tell you that on these forums, right?

Ed

Pro Stock John

iTrader: (34)

Could be the beginning of a great alliance (cue the music).

My cam is:

236/246
598/632

ForceFed HP

I was thinking this but it gets close on the lift as they are good to .600. Installed height is 1.85 at 155lbs and 420lbs at 1.250
coil bind at 1.195
with only .055 clearance getting close if pushed to .630ish, though of course you can adjust the installed height.

Ed Curtis

Tested with a CM Comp #740 Retainer
1.465 OD Outer Spring Packages

PS3:
150-155# @ 1.800
335-340# @ 1.300
375-380# @ 1.200
.625" max lift recommended

Gen-3:
170-175# @ 1.800
350-355# @ 1.300
390-395# @ 1.200
.640" max lift recommended

Gen-4:
190-195# @ 1.800
350-355# @ 1.300
405-410# @ 1.200
.650" max lift recommended

If you could clear a 1.550 OD spring, there are more options.

Ed

Pro Stock John

iTrader: (34)

I have .100 longer valves, so I could go 1.85 with Comp 977's.