Fits Vehicle: 2011-2014 Ford Mustang GT / Boss 302
BOSS 302R Valve Spring kit ( M-6513-M50BR ) QTY 16
For use on cams up to 13mm lift, also fits stock GT heads as a performance upgrade.
Sold in sets of 16.
8000 RPM capable.
For High HP applications or forced induction see MMR spring kit below.
Use MMR spring compressor tool PN#451564
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