Re: Head Porting Question
 

I would stay with 272's also, unless you are putting on a SMIM and a SCM61 or larger turbo.

~John

Re: Head Porting Question
 

272's are still the all-around best cam out there. I've only heard of the one pair being better, and only on a real big combo.

Re: Head Porting Question
 

So I am looking at buying the valve springs now and was looking for reports or opinions for valve springs that will fit the Crower Stage 3 64114 cams. Will the crower springs and retainers work or should I go with something better if there is a better single valve setup or is there a deciently affordable and reliable dual valve spring set out there. Please send me any links to where the deals are at or if any vendors have any deals going on as well I would much appreciate it.

Re: Head Porting Question
 

Here is a cost effective option from Brian Crower. These should work very well with the 414's.

Brian Crower Valve Spring/Retainer Kit $209.99

VALVE SPRING/RETAINER KIT
Designed for high rpm, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. BC titanium retainers are CNC machined from 6AL4V round bar titanium to exacting tolerances.

Spring Pressure:
BC1100 Seat: 1.500" @ 95 lbs / Open: 1.000" @ 235 lbs / Coil Bind: 0.910" (no machine work required)

http://www.briancrower.com/makes/mit...16v1retkit.jpg

Re: Head Porting Question
 

I run the regular Crower combo on my car with 415's in it, but I only rev to 7,800 RPM. 415's are WAY bigger though.

Re: Head Porting Question
 

The 64114s are not a huge cam, but who knows, Crower keeps changing the specs for the damn things. Since HKS came out with the 280 cams, Crower calls that cam as a 280. You could probably run it to a limited RPM with the stock valvetrain, but that BCS kit is a hell of a deal.

Re: Head Porting Question
 

What are these cams comparable to and also is there anything I should know or links to view on assembling a new built head with new cams, valves and springs and retainers. What HP gain should I see out of these cams on a 6 bolt swap on a 20g woth all supporting mods on dsmlink? What should I rev to for maximum effiency and performance on this setup as well?

Re: Head Porting Question
 

Is there really any difference between the Crowers Springs that have been on the market forever, and these new Brian Crower springs?

Re: Head Porting Question
 

How much better are they really and what are they rated for a max rpm?

Re: Head Porting Question
 

Doesn't give a max RPM, but maybe someone more informed about spring pressures could chime in? From what I have heard these are very similar, if not identical, to the springs/retainers offered by Manley...

Chris

Re: Head Porting Question
 

You can't rate them for max RPM without knowing what cams they are used with. They probably aren't even usable with something like an FP2x or FP3x cam that requires some fairly strong springs.

Re: Head Porting Question
 

So can I use them with the cams listed above that I got?

Re: Head Porting Question
 

Yes, the Crowers are fine with the 64114's.