Black nitride coated, inconel, sodium filled, single groove exhaust valve. 100.1mm 29.5 (+1)
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Black nitride coated, inconel, solid (no sodium), single groove exhaust valve. 100.1mm 28.5 (std)
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Aftermarket performance intake and exhaust valve springs for your high revving B46/B48 engine
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Aftermarket performance intake and exhaust valve springs for your high revving B36/B38 engine
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Used most common on tensioner rail guide
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4615654
Mfg#:
13527797908
Special Order: No Guaranteed ETA
ON SALE!
SAVE 51%
$1.99
This product was last offered at the strikethrough price on 05-02-2026
M12x1 Used most common on the timing chain main lower sprocket
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4615664
Mfg#:
13527617486
Special Order: No Guaranteed ETA
ON SALE!
SAVE 30%
$6.99
This product was last offered at the strikethrough price on 05-02-2026
Ensures you have the exact high-strength, factory-correct hardware required to properly clamp and seal your engine block.
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Whether you're replacing or upgrading components of your cylinder head, we have everything you need to get back on the road. Finish your engine build or replace broken cylinder head bits with our catalog of rocker arms, camshafts, cylinder head gaskets, valves, valve springs, entire cylinder head assemblies, cylinder head hardware, and more.
Lifetime Replacement
