Originally Posted by streetrod56 IMG_1767.jpgIMG_1768.jpgthere is a number on the ecm plug area 07773000 122160024 and it says remfg the number on the silver plate under the blue cover is BSRC 16231250 sorry about the phone number. BSRC is for a 7.4L Auto TBI motor in a 16156930 PCM, it was superseded to a CAJS in a 16197427 PCM Originally Posted by streetrod56 I did change the intake runners and the throtle body. To what? TBI or MPFI? You have a MPFI ECM and a TBI memcal, don't know what injection or transmission yet?
1990 Chevy Suburban 5.7L Auto ECM 1227747 $42! 1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner! -= =-
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