Valve Springs

Tony71502 · 08-07-2009, 08:26 AM

Does anyone know which valve springs or what spring rate is recommended for the Ford B-cam? Also, does anyone know what the installed spring height/spring pressures should be for e7's?

This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on Mustang Forums!

mjr46 · 08-07-2009, 08:32 AM

the ford racing a-50 springs and b-50 retainers are what you need, it'll tell you installed height, but more so I'd go off of seat pressure as that's the goal then check for coil bind and so forth after

Tony71502 · 08-07-2009, 08:36 AM

Thanks.. How do you check for coil bind? Sorry for the newb question.

mjr46 · 08-07-2009, 08:39 AM

you use a spring tester and pull the spring down to max lift and then insert a feeler gauge inbetween coils and check for clearance.

FivePointOhh · 08-07-2009, 09:26 AM

^^ yep

my B cam with the a50's had more than enough clearance. one of those things you gotta check though

Tony71502 · 08-07-2009, 10:57 AM

So I want these?

http://www.summitracing.com/parts/FMS-M-6513-A50/

http://www.summitracing.com/parts/FMS-M-6514-B50/

Why wouldn't the A-50 retainers be necessary?

67mustang302 · 08-08-2009, 12:24 AM

If you wanna go more high tech, comp Beehives. They're standard on the GM LS7 and all of Edelbrocks XT series heads(and I think all of their crate engines now). It'll give you a lighter valvetrain that's more stable at high rpm, but the matching Ford stuff will be fine as well.