As some of you may know, I recently got a good deal on an '86 Trans-am. Now, the previous owner insisted it was a 305 converted to a 350 TPI, but I'm not so sure.

How would I identify what rating fuel injectors I have? I know Fords do it by colors, does GM do it the same way? If so, what colors correspond to which size injector?

 

You can not convert a 305 to a 350 (His BS). All stock 305's have 19# FI. To my knowledge, GM did not color code them.

 

maybe an engine swap is what the guy spoke of? the only way to be sure it is a 350, is to get the block casting# and a head casting #. as stated all 305's come with 19lbs injectors. get the part # off an injector and post it here. some one can chime in with the answer.

 

I still see the words " insisted a 305 converted (BS) to a 350". Not swapped to a 350, need more info on what the seller's did
(BS).

 

people mistakingly use the word converted for the word swapped. i don't know why? i too call bs unless he get's some casting #'s. people like to say yeah it was "converted" to a 350 to sell it for a little more. yet a 305 still lays in between the fenderwells.

 

Sorry, I meant to write "swaped for" and not "converted". I know originally it was a TBI from the vacuum diagram on the hood and by putting the VIN on the carfax website. I'm sorry I just got a little confused.

The injector ID # is 5235047 (taken off the top ledge of the injector itself) If anybody knows what size this is, please post.

Since I know something has been changed, I'm trying to findout what it was changed to.

Thanks....Sorry about the mix-up up there.

 

Well, IF it was swapped to a 350 you are running the following.
1985, 305, A/C Delco, 19# FI which is your #523507 and the GM
P/N 17110872, also they were made by Lucas. I still think the seller was giving you (BS).

 

hey man no prob we all make little mistakes at times. as for the injectors they are 19# injectors


Year CID Mfg. OE Part #
1985 305 AC 5235047



Edit: oops Z be me too it. oh well . heheh

 

Thanks guys, I appreciate it!

 

Just FYI, an 86 wasnt available TBI, only carbed or TPI.