CAT CAMS MAZDA BP 1.8lt CAMSHAFTS BP-4W # 3701411

duration @ 0.1mm: 286° / 286°

duration @ 1.0mm  : 240° / 240°

valve lift:   10.35mm  /  10.35mm

cam lift:      10.35mm / 10.35mm

lobe angle:             108° /  108°

timing @ 1.0mm  : 12° / 48°  –  48° / 12°

REMARKS : #

valve locks and retainers are not interchangeable with parts of the earlier BP cylinder head with hydraulic cam followers

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Camshafts for use with OEM mechanical cam followers. Please check the following dimensions before ordering:

– short intake camshaft

– long exhaust camshaft, grooves in cam bearings, slot for distributor drive

– cam follower diameter: 30.0mm

– shim diameter: 27.0mm (between cam and cam follower)

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FOR COMPETITION APPLICATIONS ONLY. Following details must be verified:

– the camshafts must turn smooth in the cylinder head, provide free travel by machining where needed

– distance between valve seal and retainer at full lift must be 0.6mm at least

– minimum valve spring travel of 1.0mm at full lift must be provided

– distance between valve and piston 1.0mm (pref. 1.5mm). check 5-15° before TDC on exhaust, and after TDC on intake

stand-alone ECU based on throttle position sensor advised