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  1. 87Hi-v15HND

    Temperature sending unit help!

    Alright fellas I have ordered two different temp senders from summit racing and both have been too big to thread in the side of the block. This is for my gauge. 87 gmc 350 sbc. If anyone could provide a part number that would be awesome!
  2. 87Hi-v15HND

    TRANS COOLING Question

    Just put a Reman. 700r4 in my truck and noticed the cooling lines do NOT run through the radiator. There is an auxiliary cooler mounted along the frame On the passenger side under the bed of the truck. I don’t think that is efficient enough to cool the tranny. So I bought a new cooler that...
  3. 87Hi-v15HND

    Reverse lights not working!

    So I have power to the rear harness plug for my running lights, turn signals and brake lights but nothing for reverse! So I traced the wires all the way up to where they plug into the fire wall but from there I’m not sure where they go and what could be causing them not to work. Is it in the...
  4. 87Hi-v15HND

    Truck shuts down...

    not sure if I’m in the right forum but I’m pulling into the chic Fila parking lot and the truck shuts down and battery is dead... won’t start back up without a jump. Any ideas?? I mean the truck could run if battery is dead and I don’t think it would just shut down if the alternator was bad...
  5. 87Hi-v15HND

    What is this??

    Haven’t been able to find much about this but I seen some one call it the advance timing circuit. I’m trying to get my engine timing set and do not know if this plug has any relevance to do so. Can someone kind of walk me through the correct way to set the timing? I know on the older Sbc’s...
  6. 87Hi-v15HND

    Oil pressure gage help!

    So I have an 87 GMC 4x4 pick-up. Just bought a remanufactured engine and got it in all hooked up ready to go finally. Oil pressure gage reads 30 with ignition OFF. Keyed on position it’s pegged all the way to the right in the 2 o’clock position. I have he sensor plugged in right behind the...
  7. 87Hi-v15HND

    PROM chip help!!

    I have a good idea on how to replace the PROM chip but want further guidance. I believe it’s located behind the glove box but I’m not exactly sure how it comes out and if I just swap it out and GO! Or if there is anything else I have to do additionally?? I’m putting a remanufactured motor in and...
  8. 87Hi-v15HND

    What is this part on the intake manifold??!

    i cannot find any info on this. I wanna say it’s a vacuum advance but I cannot find any info on the net about them being “external” or the mounting hardware...
  9. 87Hi-v15HND

    Cam identification?

    Its 203/203 and .480 lift with 114 ls. Is this a stock or performance CAM? Looking into this stage 2 350tbi and not really sure what I’m looking at here..
  10. 87Hi-v15HND

    305 tbi swap to crate 350 short block

    Was going to do an LS swap and changed my mind! My 87 GMC’s stock 305 crapped out and I want to put a 350 in. Looking for a little more power with a mild cam. Any suggestions on a good motor and where to buy from? Also with a new 350 and the Vortec heads will I need a new tbi? Or will my old...
  11. 87Hi-v15HND

    87 K10 5.3 SWAP HELP!!!

    So i decided to go with a 5.3 swap out of a 2002 suburban to replace the 305 tbi i just pulled out of my 87. I have seen a lot of kits to change the placement of all the driveline accessories and it seems really expensive especially the Holley and Hooker engineered kits. is it necessary to...
  12. 87Hi-v15HND

    Looking for an Engine!

    Hello everyone, this is my first "conversation" as i am a new member to this forum. I am looking into purchasing a new engine for my 87 GMC and im not too sure of a reputable manufacturer or retailer. over the weekend i tore down my 305 and found the #1 rod bearing is shot and versus the repair...

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