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1998 - up<br />
FOCUS ZX3 - TWIN CAM<br />
MECHANICAL FLAT TAPPET<br />
FORD<br />
Description<br />
FACTORY OEM SPECS (1998-up)<br />
Part Lobe<br />
Number Center<br />
Stock 112°<br />
Advertised<br />
Duration<br />
Intake Exhaust<br />
276° Lobe 273°<br />
252° Valve 249°<br />
Duration<br />
@ .050"<br />
Intake Exhaust<br />
206° Lobe 205°<br />
200° Valve 199°<br />
Lobe Lift<br />
Intake Exhaust<br />
.346"<br />
.341"<br />
Suitable<br />
Component<br />
Kit<br />
Stock<br />
STAGE 1<br />
Automatic or mild turbo/supercharger. No head work required. RPM Range: Idle to 6500+<br />
62501-2<br />
114°<br />
268° Lobe 268°<br />
244° Valve 244°<br />
220° Lobe 220°<br />
214° Valve 214°<br />
.374"<br />
.374"<br />
Stock<br />
STAGE 2<br />
Street/Strip package. Perfect for all-motor use. Spring #68195 req. RPM Range: 1000 to 7000+<br />
62502-2<br />
114°<br />
280° Lobe 276°<br />
256° Valve 252°<br />
232° Lobe 228°<br />
226° Valve 222°<br />
.413"<br />
.393"<br />
84169<br />
STAGE 2<br />
Forced induction special. Designed specifically for turbo or super charged applications. Spring kit req. RPM Range: 1500-up<br />
62502T-2<br />
114°<br />
276° Lobe 276°<br />
252° Valve 252°<br />
228° Lobe 228°<br />
222° Valve 222°<br />
.393"<br />
.393"<br />
84169<br />
STAGE 3 - 3⁄4 Race<br />
Recommended for mostly strip use. Must clearance cylinder head. RPM Range: 1200 to 8000+<br />
62503-2<br />
114°<br />
292° Lobe 284°<br />
268° Valve 260°<br />
244° Lobe 236°<br />
238° Valve 230°<br />
.433"<br />
.413"<br />
84169<br />
STAGE 4 - Full Race<br />
All out, all motor drag profile. Not for the inexperienced tuner. RPM Range: 1300 to 8500+<br />
62504-2<br />
114°<br />
300° Lobe 292°<br />
276° Valve 268°<br />
252° Lobe 244°<br />
246° Valve 238°<br />
.454"<br />
.433"<br />
84169<br />
CUSTOM GROUND ZX3 CAMS<br />
Special order custom ground profiles available for an additional charge. Proprietary and confidential profiles also available.<br />
00071-2<br />
Refer to www.crower.com for<br />
camshaft recommendation<br />
ENGINEERED COMPONENT KITS<br />
Part No. Springs Retainers Remarks<br />
84169 68195-16* 87082-16 Fits ZX3 and ZX2 heads<br />
Note: These cams use .006" intake (cold), .008" exhaust valve lash (cold).<br />
Spring pressure:<br />
68195-16 Seat: 1.400" @ 66 lbs / Nose: 0.950" @ 174 lbs / Coil bind: 0.860"<br />
(No machine work required on most heads).<br />
* Some cylinder heads may require machine work for valve spring.<br />
ACCESSORIES<br />
Part No.<br />
86054FB<br />
86054FC<br />
97430I-8<br />
97430E-8<br />
97431I-8<br />
97431E-8<br />
Remarks<br />
Adjustable Cam Sprocket (1 only). All black. 2 required<br />
Adjustable Cam Sprocket (1 only). Black & Silver. 2 required<br />
Stainless steel valves - 32 mm head dia (8 only int)<br />
Stainless steel valves - 28 mm head dia (8 only exh)<br />
Stainless steel valves - 33 mm head dia (8 only int)<br />
Stainless steel valves - 29 mm head dia (8 only exh)<br />
Note: When ordering valves, be sure to specify one set int and one set exh.<br />
Note: When ordering sprockets, be sure to specify two.<br />
All previous part numbers no longer listed are still available as custom grinds.<br />
Please contact <strong>Crower</strong> for more custom grinds.<br />
ADJUSTABLE SPROCKETS<br />
<strong>Crower</strong>'s new cam sprockets are made from premium<br />
6061-T6 billet aluminum and incorporate a four bolt ARP®<br />
fastening system to prevent the slippage found in other<br />
brands. For the ultimate tuner, <strong>Crower</strong> sprockets feature<br />
5/16" diameter, 12 point ARP® fasteners with a hardened<br />
washer to prevent galling and stripping. The lightweight<br />
design reduces unwanted harmonics which could cause<br />
valve train failure.<br />
For technical support call 619-661-6477 or visit www.crower.com<br />
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