Looking at upgrading my valve spring retainers based on the advice of my tuner as I rev to 8000rpm.
For max reliability at high rpm he recommends the HKS retainers because they are designed to lock in the shim on the top of the valve. Unfortunately, it appears you can't buy the retainers just by themselves and need to buy the whole head setup consisting of rocker arms and valve springs <<<<<<< correct me if I am wrong here.
I am curious as to whether the BC, Tomei or any other aftermarket retainers are also designed to lock in the shim or whether they are just lighter versions of the standard retainer.
Cheers.
For max reliability at high rpm he recommends the HKS retainers because they are designed to lock in the shim on the top of the valve. Unfortunately, it appears you can't buy the retainers just by themselves and need to buy the whole head setup consisting of rocker arms and valve springs <<<<<<< correct me if I am wrong here.
I am curious as to whether the BC, Tomei or any other aftermarket retainers are also designed to lock in the shim or whether they are just lighter versions of the standard retainer.
Cheers.
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