[79 Phoenix]

I have a 76 400 that has come out of a car with an automatic. Currently it has a 166 tooth flex plate with matching starter. Register on crank is 2.49" I am using the original manual Muncie M13 3 speed from my 71 GT-37.

I need to find a flywheel and clutch that will work. I know I need a flywheel with a hole for the 2.49" register, but a couple questions:

1) To use the starter currently on the engine do I need to use a 166 tooth flywheel? (Maybe a flywheel for a 76 6.6 Lemans of Firebird?)

2) For the clutch do I shop for a clutch for a 71 Lemans/GTO?

[Skip Fix]

Flywheel for all late model Pontiacs have the same tooth count and use the same starter, although I will qualify the starter. on my 81 Turbo 301 was different.

Clutch- you need to get the flywheel first to see what size clutch it will take. Some aftermarket flywheels are drilled for 10.5 and 11".

[tom s]

I think the new aftermarket flywheels come with a ring so it can be used on both size registers.Tom

[dhcarguy]

Make sure you dial in the bell housing with a dial indicator for center and parallel to engine block.

[79 Phoenix]

Originally Posted by Skip Fix

Flywheel for all late model Pontiacs have the same tooth count and use the same starter, although I will qualify the starter. on my 81 Turbo 301 was different.

Clutch- you need to get the flywheel first to see what size clutch it will take. Some aftermarket flywheels are drilled for 10.5 and 11".

Would a 76 crank be considered "late model"? Here's a flywheel I'm considering but need to see if it's drilled for 10.5 or 11" clutch or both.

https://www.ebay.com/itm/15529815683...3ABFBMvpmYqf5i

[79 Phoenix]

Originally Posted by tom s

I think the new aftermarket flywheels come with a ring so it can be used on both size registers.Tom

I've heard there are some like that but haven't seen any.

[79 Phoenix]

Originally Posted by dhcarguy

Make sure you dial in the bell housing with a dial indicator for center and parallel to engine block.

Someone loaned me a dial indicator but I need to figure out how to use it. Hopefully there is a youtube vide on how to do this.

[400 Lemans]

Originally Posted by 79 Phoenix

Would a 76 crank be considered "late model"? Here's a flywheel I'm considering but need to see if it's drilled for 10.5 or 11" clutch or both.

https://www.ebay.com/itm/15529815683...3ABFBMvpmYqf5i

That looks like its for a Chevy not Pontiac V8.

[tom s]

McLeod makes a good steel wheel for our cars.Tom

[MatthewKlein]

Originally Posted by 79 Phoenix

I have a 76 400 that has come out of a car with an automatic. Currently it has a 166 tooth flex plate with matching starter. Register on crank is 2.49" I am using the original manual Muncie M13 3 speed from my 71 GT-37.

I need to find a flywheel and clutch that will work. I know I need a flywheel with a hole for the 2.49" register, but a couple questions:

1) To use the starter currently on the engine do I need to use a 166 tooth flywheel? (Maybe a flywheel for a 76 6.6 Lemans of Firebird?)

2) For the clutch do I shop for a clutch for a 71 Lemans/GTO?

I used this flywheel. 166 tooth. Drilled for 10.5 or 11" clutch. Compatible with 2.5 or 2.75 crank flange. Has a removable counterweight for 455 engines.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

[74Grandville]

where are you located? i have a stock one from a 78 TA. 11" clutch.

[79 Phoenix]

Originally Posted by 400 Lemans

That looks like its for a Chevy not Pontiac V8.

Listings show it is 2.5" and for 76-77 6.6L Pontiac...

[79 Phoenix]

Originally Posted by 74Grandville

where are you located? i have a stock one from a 78 TA. 11" clutch.

I'm in Ephrata, PA 17522

[Skip Fix]

On the PRW the removable weight is for either any motor size that is factory balanced and not completely internal neutral balance. Look at a factory flexplate and you can see there is a hole missing for "external balance".