vortec, cam, spring - The 1947 - Present Chevrolet & GMC Truck Message Board Network

buckola · 05-23-2004, 02:33 PM

For my vortec install I have opted for the Edelbrock Performer vortec intake with a crane cam Pt# 100052 / .272 duration with .454 lift. I have hedman full length coated headers.
What springs should I use and should I change the keepers as well. What self aligning rockers should I use. This will be a daily driver with the occasional visit to the track.

Thanks

Steve

canadianchevy72 · 05-23-2004, 08:32 PM

If the springs are in good condition you dont need to replace them Vortecs can handle up to .470 lift before they need upgraded springs.

Kid · 05-23-2004, 08:58 PM

There is nothing wrong with GM factory self aligning rockers. I would check for coil bind, and bottom of retainer to valve seal clearance (at full valve lift) on any instl. with over .450" lift. What works on one assy. does not mean it will work on "yours". Every engine build up has different tolerance acumulation. Don't cost a thing to check, & better to know that "your" assy. has proper clearance intstead of hoping it does.

jimfulco · 05-23-2004, 11:48 PM

http://sdpc2000.com/cart.asp?action=...id=523&pid=648 for the stockers.

05-23-2004, 02:33 PM	#1
buckola 1 Wrench / 10 Knuckles Join Date: Sep 2002 Location: Burlington Ontario Posts: 179	vortec, cam, spring For my vortec install I have opted for the Edelbrock Performer vortec intake with a crane cam Pt# 100052 / .272 duration with .454 lift. I have hedman full length coated headers. What springs should I use and should I change the keepers as well. What self aligning rockers should I use. This will be a daily driver with the occasional visit to the track. Thanks Steve __________________ 1970 GMC Custom Vortec Heads, Edelbrock Performer Intake, Crane 272 Energizer, Hedman Full Length HTC Headers 2006 Dodge Charger SRT8. 1/4 mile 13.3 1973 Z1 900 Kawasaki ( all original)

05-23-2004, 08:32 PM	#2
canadianchevy72 Registered User Join Date: Mar 2004 Location: Thorsby AB Canada Posts: 206	If the springs are in good condition you dont need to replace them Vortecs can handle up to .470 lift before they need upgraded springs. __________________ 1972 Chevy C/10 350/200r4

05-23-2004, 08:58 PM	#3
Kid Senior Member Join Date: Jun 2002 Location: Kansas Posts: 702	There is nothing wrong with GM factory self aligning rockers. I would check for coil bind, and bottom of retainer to valve seal clearance (at full valve lift) on any instl. with over .450" lift. What works on one assy. does not mean it will work on "yours". Every engine build up has different tolerance acumulation. Don't cost a thing to check, & better to know that "your" assy. has proper clearance intstead of hoping it does. __________________ The kid Build threads: 51 Jimmy http://67-72chevytrucks.com/vboard/s...d.php?t=154951 http://67-72chevytrucks.com/vboard/s...d.php?t=219902 http://www.classictrucks.com/feature...uck/index.html 68 C10 http://67-72chevytrucks.com/vboard/s...ad.php?t=50348

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05-23-2004, 11:48 PM	#4
jimfulco Registered User Join Date: May 2003 Location: Shreveport LA Posts: 3,170	http://sdpc2000.com/cart.asp?action=...id=523&pid=648 for the stockers.



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