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If you want to add some horsepower to your engine, then you'll also need a PROMAXX Performance Xtreme valve spring and retainer kit. The valve springs have been designed for cylinder heads using larger valves and aggressive camshaft profiles. PROMAXX Performance Xtreme kits also include retainers, locks, machined valve spring seats, and new valve seals.
Not Yet Reviewed
$401.00
Looking for performance? PROMAXX Performance Gold Series valve spring and retainer kits are one of the most widely used and trusted "drop-in" dual spring options. They work with both stock and aftermarket rocker arms—and no cutting or machining is needed on the stock spring pocket. These kits consist of Gold dual springs, titanium retainers, machined locks, machined spring bases, and 16 Viton® rubber seals. Go for the gold: Gold Series valve spring and retainer kits from PROMAXX Performance!
Not Yet Reviewed
$376.00
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