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Hydrolift

07-11-2008 02:02 PM

HP500EFI valve springs

Hi kan anybody confirm that this springs are the correct ones for a HP500EFI Crane Cam # 99896.

If not, whats the #?

Thanks and have a pleasant weekend :ernaehrung004:

obnoxus

07-11-2008 02:33 PM

Use comp 929's

Bryan Rose

07-11-2008 03:13 PM

Ditto.....929's

GETTINBYE

07-12-2008 10:13 AM

The HP 500 carbed model used the Crane spring. When they went to the EFI they changed to the Comp Cams 929-16.

sleek1

07-13-2008 12:17 AM

Do the 500EFI springs need to be changed every 250-300 hours like the HP's? I keep hearing two different stories.

Hydrolift

07-13-2008 12:13 PM

Ok, 929-16 it is. Anyone know the spring rate closed and open?

formula 382 sr-1

07-13-2008 07:49 PM

We use Isky 8005SP !!!:D

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