Page 23 of 1997 Competition Parts Catalog by Mazda MotorSports

engine rotary bridge-port side housing ­ part #0000-01-9211 cnc ­ machined bridge-port side housings continued part number nf01-10-d50d nf01-10-d00c 0000-01-9212 code req 1 1 1 description intermediate housing 1st-thick intermediate housing 2nd-thin rear housing bridge-ported model engine type 20b cosmo 20b cosmo 12a 13b year all all 1974-85 see notes page e-22 for front housing part #0000-01-9210 same as part #8871-23-095 below with cnc porting see notes page e-22 for part #8871-10-200a threaded water outlet hole can be plugged easily largest intake ports legal for scca ita class rx-2 3 4 only notes 8871-23-095 c 1 rear housing 12a 13b 1974-85 3565-23-095 8501-23-090 n201-10-300a n231-10-300a n304-10-300 n326-10-c50c n318-10-c50c n350-10-c50a n370-10-c50a n3ya-10-c50d nf01-10-c50d c/s sssssssss 1 1 1 1 1 1 1 1 1 1 1 rear housing rear housing rear housing rear housing rear housing rear housing rear housing rear housing rear housing rear housing rear housing nt non-turbo 12a 13b 12a 13b 12a 12a 13b 13b nt 13b t 13b nt 13b t 13b tt 20b cosmo t turbo 1974-75 1976-78 1981-82 1983-85 1984-85 1986-88 1987-88 1989-91 1989-91 1993-95 all new competition part t t twin-turbo 93-95 rx7 tech tips side housing tech tips see page tt-6 in the engine technical tips section of this catalog e-23

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