Need a good source for GM part #'s - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SCOTI · 08-20-2003, 06:45 PM

Does anyone have a good source for obtaining GM part #'s? I've tried getting an HEI style rotor for the 250ci 6cyl in my beater through the dealer & he can't seem to find the correct P/N.

I know A/C Delco #1894979, for a 75 250ci 6cyl w/internal coil, is the correct distributor cap because I saved the box top & info the last time I did a tune-up. I thought I saved the rotor # as well, but apparently didn't put it w/the other stuff.

Since I was going to order a window regulator & have to go through the trouble of paying in advance, I thought I would get tune-up stuff for both trucks while I was ordering.... and since neither truck came w/HEI, they don't know how to find the info. because the books don't tell them whether the P/N is for a distributor w/external or internal style coil.

Any suggestions??????????

**swervin ervin** · 08-20-2003, 07:29 PM

I looked in my parts catalogs and came up with some numbers for you. I checked at gmpartsdirect and they still sell these numbers.

A HEI rotor for a 77 6 cyl. is 1893669. A HEI rotor for a 292 is 10498150. They are both the same price. I figure they are both the same thing, just with different part numbers.

Oh, 1892562 is the part number for a rotor in a 75-76 6 cyl., but they don't list it. Must be a discontinued part number.

Hope this helps.

SCOTI · 08-20-2003, 10:23 PM

Is there a way to determine whether any of those numbers are the match to my cap #1894979? I mean.... I know I have the right cap, but which is the right rotor? I don't want to order several just to find out, but if I have to . . ......

Or.... is a 6cyl HEI rotor, a 6cyl rotor.... irreguardless of coil style?

Thanks swervin!

**swervin ervin** · 08-20-2003, 10:51 PM

The cap number 1894979 is for a 78 250, or so says the parts catalog. Closest thing I can get to it is the 1893669, which it says is for a 77 6 cyl. HEI. Being as HEI was all internal coil in these years, I think you would be safe with this one.

Do you by any chance have the number for your distributor?

Not sure if it will help, but it's worth a shot.

Mike

SCOTI · 08-20-2003, 11:13 PM

Where on the distributor body would it be located?

08-20-2003, 07:29 PM	#2
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	I looked in my parts catalogs and came up with some numbers for you. I checked at gmpartsdirect and they still sell these numbers. A HEI rotor for a 77 6 cyl. is 1893669. A HEI rotor for a 292 is 10498150. They are both the same price. I figure they are both the same thing, just with different part numbers. Oh, 1892562 is the part number for a rotor in a 75-76 6 cyl., but they don't list it. Must be a discontinued part number. Hope this helps. __________________ Mike 1985 Chevy C-10 Last edited by swervin ervin; 08-20-2003 at 07:32 PM.

08-20-2003, 10:23 PM	#3
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,071	Is there a way to determine whether any of those numbers are the match to my cap #1894979? I mean.... I know I have the right cap, but which is the right rotor? I don't want to order several just to find out, but if I have to . . ...... Or.... is a 6cyl HEI rotor, a 6cyl rotor.... irreguardless of coil style? Thanks swervin! __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

08-20-2003, 11:13 PM	#5
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,071	Where on the distributor body would it be located? __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

08-20-2003, 06:45 PM	#1
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,071	Need a good source for GM part #'s Does anyone have a good source for obtaining GM part #'s? I've tried getting an HEI style rotor for the 250ci 6cyl in my beater through the dealer & he can't seem to find the correct P/N. I know A/C Delco #1894979, for a 75 250ci 6cyl w/internal coil, is the correct distributor cap because I saved the box top & info the last time I did a tune-up. I thought I saved the rotor # as well, but apparently didn't put it w/the other stuff. Since I was going to order a window regulator & have to go through the trouble of paying in advance, I thought I would get tune-up stuff for both trucks while I was ordering.... and since neither truck came w/HEI, they don't know how to find the info. because the books don't tell them whether the P/N is for a distributor w/external or internal style coil. Any suggestions?????????? __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

08-20-2003, 10:51 PM	#4
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	The cap number 1894979 is for a 78 250, or so says the parts catalog. Closest thing I can get to it is the 1893669, which it says is for a 77 6 cyl. HEI. Being as HEI was all internal coil in these years, I think you would be safe with this one. Do you by any chance have the number for your distributor? Not sure if it will help, but it's worth a shot. Mike



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