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Titanium springs and retainers or any sls option m156 w211
For the m156 w211 e63 2007. What type of increased longevity and performance springs and retainers can I use. The heads are ported and polished (pocket porting mainly polished) vrp Street cams , and a weistec stage 3 blower
Are there stronger OEM ones from a sls black series. Or a company with titanium options. Or will stock ones hold up if new milage is 130k miles I don't think I'm putting these stock ones back any input thanks.
For the m156 w211 e63 2007. What type of increased longevity and performance springs and retainers can I use. The heads are ported and polished (pocket porting mainly polished) vrp Street cams , and a weistec stage 3 blower
Are there stronger OEM ones from a sls black series. Or a company with titanium options. Or will stock ones hold up if new milage is 130k miles I don't think I'm putting these stock ones back any input thanks.
stick with factory unless you plan to replace valvetrain components every x miles. the black series only differs in that the camshaft buckets are lightweight hard ceramic.
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Last edited by ArjunSolis; Mar 20, 2024 at 03:37 AM.
Well Barry certainly knows what he’s talking about, so I won’t add anything on that note. When I rebuilt my front end back in 2018, immediately after taking possession due to increasingly high idle, I was informed from the shop I chose to rebuild my W211 M156 E63 Heads that 8 of 16 intake Valves were bent! So that’s something you might want to test! Moreover, since I requested for them to test the springs, I ended up buying 4 IIRC. The shop had offered to use ones they had on hand, but I said I would order them. I also had purchased the SLS Black Valve Tappets, so I’m glad I did when I did as the price for them has doubled since then! Newly rebuilt Heads by Xtreme Headz in Palm City, Fl.!, wrapped in Cellophane! Clean Intake Runners which were previously caked with Carbon Build Up! Cam Adjusters with New Cam Bolts! Intake Manifold removed to be rebuilt by RMT. Those elbow hose fittings are for the 1” Heater hoses from the Crank Case> “Catch Can” > OEM PCV using the connectors from both sides of the OEM PCV Valve. This pic was taken before I had removed the Heads. Heads installed after having installed new Head Bolts, SLS Tappets (can barely see them in this pic!) etc, prior to attaching the Cam Adjusters. Notice the Cam Timing Tool Mounted on both side of the Cams.
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