i saw what you did there!
Join Date: Sep 2002
Location: Lincoln IL
fast68chevy is offline
Re: Converting sbc from carb to tbi?
yes the only thing is that the four center intake holes are different angle after 87 they are more upright than in 86 older but you can shim them or modify the holes in the intake where the heads of the bolts rest on the intake and change the angle of the holes through the intake with a 3/8" drill bit
use a whole complete ECM and harness from a 700r4 truck full size or s10 or caprice or camaro or firebird etc and the only thing is that i dont know what year and style speedometer you have but you might have an issue there but nothing that cant be corrected with the right stock donor parts and conversion
but if your '94 is still the 4L60E trans then this changes everything and you will need a donor harness from a TBI truck with 4L60E and that combo only existed in 93, 94, and 95 on the full size trucks and i dont know what years in the s series probably 93 and maybe 94 too? maybe 95 also? im not sure what years s series had tbi and 4L40E other than 93
being that you have an early second gen that makes this a bit more interesting and fun hmmm
need an electric fuel tank sender and pump as well from a donor truck and the lines and hoses too for at the TB unit
you can use hose clamps the TBI is low pressure around 12 to 14 PSI
caprices, suburbans, firebirds,camaros, tahoes, jimmys, all pickups, blazers, and some others are good harness and ECM donors '93 to '95 randomly
many different vehicles parting out, engine underhood dash electrical and more parts! cars, trucks, fords, chevies, etc. - text me 217 671 7792 anytime! Own: '54 F350 dually, '54 & '57 F100's, '57 Bel Air gasser, '68 Corvair Monza 'vert. '72 Chevelle SS HT, '82 K10 SF, '85 Elky SS 310ci, '93 C1500 4.3L Z