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Discussion Starter · #1 ·
Ahoi Girls and Guys,

i have a small Problem to slove, im in the process to build a K24/20. the Block is ready now doing the Head work. Ive got a Springs and Retainers Set from Brain Crower (BC0040S) - i dont know which Keepers is should use. Ive got 5.5mm 7deg Keepers from Supertech and K20Z4 OEM Keepers.

These are the 5.5mm 7deg Supertech Keepers
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These are the OEM K20Z4 Keepers
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maybe someone had the Same issiue ?
 

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Discussion Starter · #8 ·
I checked the fitment without any pressure on them and the Supertech Keepers fits better in the retainers than the OEM Z4 keepers
 

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Discussion Starter · #12 ·
At this point in the game and with what you have invested I would email Brian Crower and get his opinion on which cotter you should use.

it is easy to offer advice, in this case being wrong is dead wrong. I joined you on your thread to try to help and learn something myself in the process about Supertech cotters on oem valves. I have the opportunity to install Ti retainers for fun when I pull my head off tomorrow morning. I am not going to install the Ti retainers.

There was a thread recently that was similar to yours with the Supertech cotters (keepers) being near the end of the oem valve and the oem cotters were just like yours. The Supertech cotters near the end of the valve.

I will post pics of my valve train here shortly.
I asked BC on Instagram… the told me to use the Supertech 5.5mm 7deg. retainers… but i send them a Mail. I can tell you More later
 
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