Valve Spring Advice
#1
07-30-2013, 06:15 PM
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Valve Spring Advice
I am building an 80" evo with an EV27 cam, crane adj. pushrods, and some other stuff, but my main concern is the valve springs. I am installing kb .030 overbore pistons with 9.5:1 compression, and polished up heads and valves. Do you think I need to upgrade the stock valve springs? I'm on a junk drawer change type budget also. I know I could, but do I have to? Any advice is appreciated. Thanks, Glenn.
#3
08-01-2013, 06:04 AM
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I agree that the OE spring will handle the lift of an Andrews 27, but if you put those in a spring tester, I'd bet good money that a replcement spring would be in order.
Crane, AV&V, or even an S/E spring.
Scott
Crane, AV&V, or even an S/E spring.
Scott
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HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
www.hillsidecycle.com
Walk-in Retail Showroom
Complete H-D Machine Shop
Case & cylinder boring
Complete Cylinder Head Shop
High-Performance Engine Kits
Crank Rebuilding
Direct Link & PowerVision Tuning
Goodson HD Tooling Manufacturer
Maxton Mile World Record
4500 sq ft. facility
OVER 35 YEARS OF H-D ENGINE BUILDING.
See us on Facebook.
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