11" truck clutch, into a Lark? Would it be the same flywheel?

[silverhawk]

Hey all,

I want to upgrade the clutch in my car; and I'm wondering if I could put a 11 inch truck clutch in the car; with out replacing the flywheel. I would like the car to end up with a G.H engine (Muhaha, you got to admit that would be FUN!!!!), so might as well do it now.....

BTW, I did search to see if anyone else asked. If not, I apologize in advance.

[silverhawk]

Ooops, I should clarify before someone calls me out. I want to put the G.H engine components ON my existing engine. Maybe the whole 289 would go in, but most likely not at first......

[DieselJim]

11 inch clutch takes a different flywheel and bellhousing. I don't think the truck bellhousing will fit in a car without modifying the hump. Jim

[silverhawk]

Ok, thanks much!

[bezhawk]

The Golden Hawk already has an 11" clutch.....of course thats the 56 Golden Hawk I'm talking about!
A good choice is to use a Jeep clutch and pressure plate assy.
10 1/4 " for use with Jeep Cj with 304 v8.

[silverhawk]

I'll look into that clutch; thanks Bez!

[N8N]

I've heard that a Chevy 409 pressure plate is roughly the same as the ones used in R-series cars.

nate

[PackardV8]

FWIW, the Stude V8 uses one of the most common clutch disc and pressure plate combinations in automotive history. There are literally dozens of cars and trucks which use the same center spline count and bolt pattern. Rather than limit yourself to one make/model which may or may not be in stock, I just take them into a parts warehouse and say, I'd like these please. Some of the 409"s were a heavy duty pressure plate and will literally bend up the Avanti/Daytona linkage. Of course, the 409"-specific stuff is no more likely than Stude to still be in the catalog.

jack vines

[N8N]

Some of the 409"s were a heavy duty pressure plate and will literally bend up the Avanti/Daytona linkage.

yeah, but so did the STOCK clutch!

I figured everyone knew by now that a few well chosen custom made linkage parts were required for any high-performance clutch installation on one of those awful "pusher" style clutch linkages...

nate

[silverhawk]

I "think" we have some sort of 409 pressure plate on it now. Although, it appears as if I'll be switching to the Jeep pressure plate and clutch, AND switching to a diaphragm style

[N8N]

if you come up with a good diaphragm PP that works, please post it! I had one that I *thought* would work but it just wouldn't clear the bellhousing, no way, no how. I did clearance it pretty aggressively.

nate

[silverhawk]

Will do! So far it looks good; I don't have it yet though

[StudeRich]

Dylan; if the Diaphragm Clutch project fails, be sure you get a Borg & Beck type Pressure Plate at least as good (strong) as an Avanti 10 1/2 inch. they have all 12 of the spring pockets filled, unlike a 259 or 289 P/P with only 9 springs in 12 pockets!