What size Flexplate????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jays68yak · 12-12-2002, 01:35 PM

I have a 69 suburban with a 350 and a 4speed. I will be converting to a 700r4 soon. What flexplate do I need to use with the stock starter. IE how many teeth?

*Randy70C-10* · 12-12-2002, 01:44 PM

I'm terrible with numbers, it's the big one. (168 I think)

jhow66 · 12-12-2002, 02:40 PM

Use the same size as your manual flywheel if you are going to use same starter. (14"=168 teeth--12 3/4" = 153 teeth.)

jays68yak · 12-12-2002, 03:12 PM

Ok yeha I figured out that it should be the same size. Im just too lazy to take a look since its not apart. I was wondering what came stock, so that I could get it and have it ready when I do the swap. Thanks for the help.

Church · 12-12-2002, 03:38 PM

I went with the 168 tooth and a high torque starter. I recommend the smaller one though. I will give a little more room for exhaust clearance.

**MikeB** · 12-12-2002, 07:00 PM

Get whatever works with your starter.

12-12-2002, 01:35 PM	#1
jays68yak Registered User Join Date: Oct 2002 Location: Gilroy, CA Posts: 1,453	What size Flexplate????? I have a 69 suburban with a 350 and a 4speed. I will be converting to a 700r4 soon. What flexplate do I need to use with the stock starter. IE how many teeth? __________________ 1969 Chevy Project SWB Fleet, 20s, 5.3, t56, in the weeds. 1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and swayaway coilovers. 8.1l vortec DD/towrig "I like long walks, especially when they are taken by people who annoy me. "

12-12-2002, 02:40 PM	#3
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Use the same size as your manual flywheel if you are going to use same starter. (14"=168 teeth--12 3/4" = 153 teeth.) __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

12-12-2002, 03:12 PM	#4
jays68yak Registered User Join Date: Oct 2002 Location: Gilroy, CA Posts: 1,453	Ok yeha I figured out that it should be the same size. Im just too lazy to take a look since its not apart. I was wondering what came stock, so that I could get it and have it ready when I do the swap. Thanks for the help. __________________ 1969 Chevy Project SWB Fleet, 20s, 5.3, t56, in the weeds. 1970 Chevy Truck cab on a 1979 Jimmy frame-8.1 liter 496 bbc/sm465/np203-jeds doubler-np205/d60/14bff Welded/42 tsls on recentered H1s 1998 Chevy Crew Cab K3500 SAS'd with hpd60, links and swayaway coilovers. 8.1l vortec DD/towrig "I like long walks, especially when they are taken by people who annoy me. "

12-12-2002, 03:38 PM	#5
Church Carolina Classic Trucks Join Date: Jan 2000 Location: The South Posts: 792	I went with the 168 tooth and a high torque starter. I recommend the smaller one though. I will give a little more room for exhaust clearance. __________________

12-12-2002, 07:00 PM	#6
MikeB Senior Member Join Date: Jul 2000 Location: North Texas Posts: 3,597	Get whatever works with your starter. __________________ Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then!

12-12-2002, 01:44 PM	#2
Randy70C-10 Account Suspended Join Date: Mar 2001 Location: Virginia Beach, Va. U.S.A. Posts: 15,320	I'm terrible with numbers, it's the big one. (168 I think)



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