Supertech Performance MCIVN-1005 Mini Cooper 1.6Lts. Intake Valve 30.7(+0.5) x5.94x109.58mm /SS/ Blk. Nitrid/ undercut/back-cut
SKU: 41278065455

Supertech Performance MCIVN-1005 Mini Cooper 1.6Lts. Intake Valve 30.7(+0.5) x5.94x109.58mm /SS/ Blk. Nitrid/ undercut/back-cut

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Description

Supertech Performance MCIVN-1005 Mini Cooper 1.6Lts. Intake Valve 30.7(+0.5) x5.94x109.58mm /SS/ Blk. Nitrid/ undercut/back-cutSupertech Performance MCIVN 1005 Mini Cooper 1. 6Lts. Intake Valve 30. 7(+0. 5) x5. 94x109. 58mm SS Blk. Nitrid undercut back cut Supertech valves are the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. Supertech

Supertech Performance MCIVN-1005 Mini Cooper 1.6Lts. Intake Valve 30.7(+0.5) x5.94x109.58mm /SS/ Blk. Nitrid/ undercut/back-cut

Supertech valves are the best on the market, made from one piece of forged stainless steel for the ultimate in strength and durability. Supertech valves go through a special heat treatment process that obtains the right amount of harness for each engine to ensure the ultimate valve for your performance motor. Supertech offers their valves in either chrome coating, used in high performance valves, or hardened black nitrided which is most popular in European and Japanese motors.

Supertech High Performance Race Engine Valves features:

  • The microhardness is higher than the stainless steel base material, keeping good ductility beneath the hard nitrided layer (microhardness is 800HV minimum)
  • Surface finish is smoother than with chromed stems, having less friction between stem and guide.
  • Valve seat surface is harder with the nitrided layer, lasting longer with lead free fuels, alcohols, nitro or other "explosive" mixes. Matches any kind of seats (nodular iron seats, steel powder metal seats, hard aluminum-copper seats or beryllium copper seats).
  • Higher rpm's engines take full advantage of all previous features. The higher the engine speed the bigger the power loss due to internal engine friction! The black nitride layer reduces this power loss due to less valve-guide friction.
  • The nitrided layer is adhered to the base material at a microscopic level, so does not"flake" or brake when the valves bend due to impacts with the pistons.
  • The Black Nitride applies to the whole valve while the chrome coating is only applied to the stem.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 41278065455

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B
Verified Purchase
Brian Classen
Birmingham, US
★★★★★ 5
FRIENDLY REMINDER Don't overtighten the bolts
MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
D
Verified Purchase
Dklnyc
Pawtucket, US
★★★★★ 5
Strong product
Great quality
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Reviewed in the United States on March 11, 2026
S
Verified Purchase
Sebastian Benavides
Pawtucket, US
★★★★★ 1
Snapped bolt
I tried putting it on my n55 from a m235i and it did not fit properly. I was in a rush to try to put it on and thought it was on properly and I thought it did. And I snapped the bolt because the bolt because it was not aligned after I looked at harder I do not recommend for a n55. do not get this cheaply made pos. I recommend getting it from fcp euro where parts will actually fit and not fail.
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Reviewed in the United States on January 1, 2026
B
Verified Purchase
Baldemarg
Lake Worth, US
★★★★★ 5
May not fit correctly or is difficult to fit on.
Would not advise buying. It wouldn’t fit with the o ring nor with the old one, it would only go in with no o ring. So I had to put back my old hinge and o ring. Edit: I had to add coolant to the O ring, along with somewhat forcing/prying it in in order to get it to fit flush.
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Reviewed in the United States on January 9, 2026
J
Verified Purchase
Johnetta
Port Orchard, US
★★★★★ 5
Works 100% on my f30 n55
No leaks made with good material you can use everything they send it will work
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Reviewed in the United States on May 26, 2026

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