93dps
10-13-2006, 08:59 PM
anyone know what the od/id on factory 304 springs is?
View Full Version : valve spring specs
KJMac
10-16-2006, 05:27 PM
I was thinking 1.437?
AMX69PHATTY
10-17-2006, 12:01 AM
I believe stock AMC Valve Springs are 1.400 O.D. x 1.125 I.D., 1.812 installed hieght,
90 lbs closed, 190 lbs when opened .425 lift, that is without rotating retainers.
Some motors have exhaust valve rotating retainers and shorter springs.
There's a shoulder on the cylinder head spring seat that locates the spring.
I have heads fitted with Crane #99893-16 1.460 O.D. Double valve springs
but the spring seat in the heads was machined to fit the inner springs .800 I.D.
90 lbs closed, 190 lbs when opened .425 lift, that is without rotating retainers.
Some motors have exhaust valve rotating retainers and shorter springs.
There's a shoulder on the cylinder head spring seat that locates the spring.
I have heads fitted with Crane #99893-16 1.460 O.D. Double valve springs
but the spring seat in the heads was machined to fit the inner springs .800 I.D.
Powered by vBulletin® Version 4.2.2 Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.