• Boss 302R Valve Spring Kit - M6513M50BR
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BOSS

Boss 302R Valve Spring Kit - M6513M50BR

Boss 302R Valve Spring Kit - M6513M50BR

$95.99 USD
$95.99 USD
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  • Ships direct from the brand or supplier
  • Tracking emailed when it ships
  • Free fitment check before you order

302R Valve Spring Kit by BOSS. Check the part number and details below against what you are replacing. Weak springs let valves float, which costs power and can damage the engine.

Quick facts

  • Brand: BOSS
  • Part type: Valve spring set
  • Part number: M6513M50BR

Tip: Check installed height and coil bind against the spec from the brand before you start the engine.

View full details

Before you order: fitment and what to plan

Valve springs close the valves and keep them following the cam at high rpm.

Fitment notes

  • Specs, lead time and warranty come from BOSS and can change. The details above this guide are the latest we have.

Not sure it fits? Send us your year, make, model, engine and trim and we'll check before you order.

Ask about fitment

Plan the whole job

More for your car: Valve Springs · All Valve Springs · Engine

Questions about valve springs

Will this fit my car?
Check the title and details above for the vehicles and part number it is listed for. If you are not sure, contact us with your year, make, model, engine and trim and we will confirm fitment before you order.
Do I need new springs with a new cam?
If the new cam has more lift, usually yes. Match them to the cam card.
Where do specs and warranty details come from?
From BOSS. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.
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