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Injector size chart

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Old 10-07-2003, 09:38 AM
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Car: '89 Formula, '97 Z28, '88 Formula 350
Engine: 305 TBI(LO3)
Transmission: TH700R4(MD8)
Injector size chart

Are the 305 & 4.3L in jectors the same size? Also are they two injectors sizes for the 350, one for police and one for normanal cars? The 454 has one size, huh? Thanks, Bobby
Old 10-07-2003, 01:06 PM
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Car: 91 RS
Engine: LO3
Transmission: T-5
maybe you should check the engine/gen.tech. board on this one.
Old 10-07-2003, 02:03 PM
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Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
I remember some of the sizes as being the following, but i could be wrong about a few.

4.3L -- 35 pph
5.0L -- 45 pph
5.7L -- 55 pph
5.7L -- 65 pph (9C1)
7.4L -- 90 pph and i beleive 85 pph in later models.
Old 10-07-2003, 02:09 PM
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Car: 91 RS
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how can you tell if if you have 9C1 injectors?
Old 10-07-2003, 02:13 PM
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Car: 88 Camaro SC
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Axle/Gears: 9-bolt w/ 3.23's
the color codes... There will be a small dab of paint on the terminal post or the metal doohickie in the center of the injector. I dont know the color codes offhand but an iternet search should reveal them.
Old 10-07-2003, 04:18 PM
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Car: 2002 Z28
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9C1 65# injections are yellow/brown
Old 10-07-2003, 04:23 PM
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wow, the boneyard bonehead wasnt sh!@n' me. they are 65#. no wonder my WOT really bites the big one! oh yeah, mine have yellow paint dabs on the metal dohickies.
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