BMW M10 Roller Cam Conversion Kit

BMW M10 Roller Cam Conversion Kit

No more worn cam lobes or broken rockers. This kit is proven to be extremely durable and reliable for sustained high RPM. BMW M10 4 Cylinder engines.

M10 engines are always severely limited in valve lift due to the oem rocker geometry. The  valve size will support a much greater flow if lift is increased and with this roller setup lift numbers over 13mm can easily be achieved. Roller cams offer superior valve opening speeds allowing more aggressive profile with higher lift, increasing power potential while maintaining good mid range torque. Needle bearings and rolling contact lowers the friction loss increasing power and reducing the load on your cam chain. There is no downside!

Every item in this kit is made from the highest quality Aircraft grade materials. Cams are Made in Sweden from high grade case hardened tool steel and ground on one of the most hi-tech cam grinding machines available. Very few grinding machines exist that can produce the unique tight inverse lobe design needed to make this conversion work so successfully.

Valve springs are available in 2 grades, high performance Porsche springs made by Performance Springs Australia or high quality PSI springs from USA. All kits come with lightweight titanium retainers and steel base locators. Rockers are precision machined from high tensile 7 series aircraft aluminum, fitted with genuine Porsche valve lash adjusters and Swedish SKF needle bearings. Serviceable pins and rollers are made from chrome-based bearing steel then case hardened and center-less ground to precision finish.

Cams are usually made to order so any lobe separation can be specified to best suit your application.

Kit includes
8 x Roller rockers with needle bearing rollers and genuine Porsche swivel foot adjusters
8 x Valve springs
8 x Titanium retainers
8 x Hi tensile valve spring base locators
1 x Distributor drive gear LH or RH
1 x Case hardened tool steel roller camshaft

We currently have 4 camshaft profiles available. But tell us what your looking for and we can custom make a profile to suit your needs

- Lobe centers can be adjusted by special order at no extra cost.

324 Race cam specs:  Large journal only
324 degrees total duration @ 004"
276 duration @ 040" (050" with zero lash)
106 lobe separation
0.539" max lift (13.7mm)

308 Endurance/ Rally cam specs:  Large journal only
308 degrees total duration @ 004"
264 duration @ 040" (050" with zero lash)
106 lobe separation
0.527" max lift (13.4mm)

288 Fast road cam specs:  Small journal
288 degrees total duration @ 004"
244 duration @ 040" (050" with zero lash)
108 lobe separation
0.492" max lift (12.5mm)

280 Fast road/turbo cam specs: Small journal
280 degrees total duration @ 004"
236 duration @ 040" (050" with zero lash)
108 lobe separation
0.492" max lift  (12.5mm)