Page 112 of 2008 Performance Parts by Ford Racing Performance Parts

camshafts and lifters ford racing camshafts the ford racing camshaft specification chart describes individual cams currently available from ford racing refer to page 216 for performance characteristics and usage guidelines see page 115 for valve springs ford racing camshaft specifications part number engine rocker ratio intake events 0.050 open close exhaust events 0.050 open close duration sae int exh lift inches lobe valve lobe center int exh m-6250-b303 1985 and later 302 roller cam 1985 and later 302 roller cam 1985 and later 302 roller cam 1985 and later 302 roller cam 1985 and later 302 roller cam 1.60 5° btc 39° abc 49° bbc 5° btc 284° 224° 282° 220° 288° 226° 286° 224° 290° 228° 284° .300 i .480 i 107° 224° .300 e .480 e 282° .311 i .498 i 110° 220° .311 e .498 e 288° .320 i .512 i 109° 226° .320 e .512 e 286° .339 i .542 i 107° 224° .339 e .542 e 290° .345 i .552 i 107° 228° .345 e .552 e 117° m-6250-e303 1.60 0° btc 40° abc 40° bbc 0° btc 110° m-6250-f303 1.60 4° btc 42° abc 52° bbc 6° btc 119° m-6250-x303 1.60 5° btc 39° abc 49° bbc 5° btc 117° m-6250-z303 1.60 7° btc 41° abc 51° bbc 3° atc 117° note camshaft intake and exhaust valve events are measured at 0.050 tappet lift the duration figures in the shaded area are taken at 0.050 tappet lift this is useful to check the cam with a degree wheel during installation the solid color is advertised duration for comparison purposes add intake and exhaust lobe centers and divide by 2 to calculate camshaft centerline specification for ford racing camshafts notes on efi engines performance camshafts work only with mass air induction systems will not work with explorer eec-v efi also fits 1994-97 351w with factory roller cam when used with mass air efi stock 5.0l ho cam advertised specs are 266°/266° duration 0.444 0.444 lift may require piston modification for piston-to-valve clearance valve clearance should be checked may require longer pushrods hi-stall torque converter recommended for automatic trans emissions legal with 5-speed manual trans e.o #d-225-16 great for superchargers manual transmission recommended good torque and power up to 6200 rpm manual transmission recommended good torque and power up to 6500 rpm manual transmission recommended cam lube m-19579-a12 · highest quality cam lube for camshaft replacement and engine assembly · recommended for use with all ford racing flat tappet camshafts · distributed in cases of 12 · single bottles may be available from your ford racing distributor part number cm-19579-a1 · use engine oil on roller camshafts did you know 351w blocks that are roller cam compatible have the casting number f4te it is located near the starter if your block is not roller ready conversion lifter part number m-6500-s58 will allow you to use a hydraulic roller cam in a non-roller 289/302/351w block did you know the first year of a hydraulic roller cam in a 302 was 1985 110 techline 800 ford788 not legal for sale or use on pollution-controlled motor vehicles direct replacement part see pages 2-8 for important safety emissions and warranty information.

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