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Brand:
ES#:
2210375
Mfg#:
11127603563
5% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$19.99
This product was last offered at the strikethrough price on 06-12-2026
$18.99 USD
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Two required per valve, necessary for use with certain supertech valves
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Brand:
ES#:
4716125
Mfg#:
KPR-5.0-7S-24
$72.99 USD
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Lifetime Replacement
High performance valve springs. 84lb@ 37mm, 157lb @ 10mm
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Brand:
ES#:
4716138
Mfg#:
SPR-FE20BE-2-24
$494.99 USD
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Lifetime Replacement
Used to hold your valve springs in place
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Brand:
ES#:
22823
Mfg#:
11341461405
$3.97 USD
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Lifetime Replacement
M6X30
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Brand:
ES#:
16141
Mfg#:
07129905537
$4.99
This product was last offered at the strikethrough price on 03-04-2026
$2.99 USD
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Lifetime Replacement
High performance valve springs. 75lb @ 37mm, 155lb @ 10mm
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Brand:
ES#:
4716139
Mfg#:
SPR-FE20BE-24
$471.99 USD
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Lifetime Replacement
Replacement valve cover bolt for your N55/S55 engine's valve cover
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Brand:
ES#:
4833872
Mfg#:
11127584156
ON SALE!
$9.99
This product was last offered at the strikethrough price on 05-14-2026
$9.41 USD
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affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
22585
Mfg#:
11337559794
7% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$58.99
This product was last offered at the strikethrough price on 06-12-2026
$54.99 USD
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Lifetime Replacement
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE
Brand:
ES#:
3131365
Mfg#:
012016ECS02A
$28.99 USD
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Lifetime Replacement
To remove select main springs on the cam system
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Brand:
ES#:
3201832
Mfg#:
B117110
$414.64 USD
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Lifetime Replacement
Quality retainers from Supertech
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Brand:
ES#:
4716135
Mfg#:
RET-BMN54-TI-12
$197.99 USD
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Lifetime Replacement
Quality retainers from Supertech
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Brand:
ES#:
4716136
Mfg#:
RET-BMN54-TE-12
$197.99 USD
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Lifetime Replacement
Cometic MLS Head Gasket for N55B30 0.052" Thickness
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Brand:
ES#:
4821116
Mfg#:
C15476-052
$194.99 USD
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Lifetime Replacement
Cometic MLS Head Gasket for N55B30 0.060" Thickness
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Brand:
ES#:
4821117
Mfg#:
C15476-060
$194.99 USD
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affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
2542540
Mfg#:
11377628303
7% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$99.99
This product was last offered at the strikethrough price on 06-12-2026
$92.99 USD
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Lifetime Replacement
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! USE CODE ECS20 IN CART FOR BEST PRICE
Brand:
ES#:
3462994
Mfg#:
012016ECS0KTKT
$67.99 USD
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Lifetime Replacement
More About Cylinder Head Parts
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.