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'68 327 engine components help needed.

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Old Nov 1, 2017 | 12:28 PM
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Default '68 327 engine components help needed.

We've finished up the 327, everything assembled from the carb to oil pan, all set for the flywheel and clutch pack to be installed but I have no ideal at all of what to buy for it. We have the original GM aluminum bell housing and ten spline four speed, but don't know what to order or really where to go for the flywheel, pressure plate, clutch, release bearing, pilot bearing, or starter.

I know/think that there are two different flywheels that would fit and there is a different tooth count for each and possibly a different diameter even, but not sure. Not really sure which would fit inside of the bell housing. Really don't know ANYTHING at all about this and could REALLY use some help in what to order up and where would be the best place to order it all from.

Any help or guidance at all would really be appreciated.

Thank you !
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Old Nov 1, 2017 | 02:39 PM
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You need to check what the casting number of your bell housing is and that will dictate all other pieces. You can not mix and match the individual pieces.
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Old Nov 1, 2017 | 03:28 PM
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In this day and age of quality Clutches, I don't see the need for the 11 inch units, unless you are running some very high horsepower big block or an outrageously high horsepower small block. The key to getting what you like, is the clutch disc and the material used, should be selected as to how you plan to drive it. Flywheels, I have always upgraded to Steel units. I don't want iron if I am banging on it.
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Old Nov 1, 2017 | 03:48 PM
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Once I take down the engine numbers, where would I go next?

We were planning on a lightened steel flywheel but don't know what size to get, nor what other parts and pieces would go with it. Almost seems like I ought to just call up Summit Tech Line and explain my "problem." Leave it up to them to help put together a "package" for me and buy everything at once, matched and guaranteed to work together. Give them the block number, CI, and YOM and count on their expertise.

Thanks—
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Old Nov 1, 2017 | 04:02 PM
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Originally Posted by Team Evil
Once I take down the engine numbers, where would I go next?

We were planning on a lightened steel flywheel but don't know what size to get, nor what other parts and pieces would go with it. Almost seems like I ought to just call up Summit Tech Line and explain my "problem." Leave it up to them to help put together a "package" for me and buy everything at once, matched and guaranteed to work together. Give them the block number, CI, and YOM and count on their expertise.

Thanks—
If you pick a manufacturer like Centerforce or Luk, or whoever, they can sell you basically a system. For expenses, much of the stock stuff, like the flywheel, throwout bearings (new but stock) etc. can be used, but you want to lighten so sell that stuff on Craigslist! Because if lightening, going Steel is a wiser choice.

I personally would never call the dumb dumbs at Summit (too many brands, and car types, etc. for you to trust that you got an expert).
True you might get a sharp knowledgeable guy, but some just generic customer service I doubt one would do anything more than you can do yourself. Thus I would call one of the clutch manufacturers and get the recommended part numbers from them, and then call Summit and get those from them for the price break.

If we knew your budget thoughts, I am sure you would get more responses!

Last edited by TCracingCA; Nov 1, 2017 at 04:04 PM.
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Old Nov 1, 2017 | 07:20 PM
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Originally Posted by Team Evil
Once I take down the engine numbers, where would I go next?

We were planning on a lightened steel flywheel but don't know what size to get, nor what other parts and pieces would go with it. Almost seems like I ought to just call up Summit Tech Line and explain my "problem." Leave it up to them to help put together a "package" for me and buy everything at once, matched and guaranteed to work together. Give them the block number, CI, and YOM and count on their expertise.

Thanks—
When I bought my clutch package from McLeod the tech I spoke with was very helpful and knowledgeable. Not the cheapest around, but not something to skimp on either.
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Old Nov 1, 2017 | 08:25 PM
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Originally Posted by sullyman56
When I bought my clutch package from McLeod the tech I spoke with was very helpful and knowledgeable. Not the cheapest around, but not something to skimp on either.
I 2nd the McLeod... I went with a Superstreet Pro in my '70 and it is just now broken in and works and feels good. Good holding, not a bunch of pedal pressure. You can go with a basic pilot bushing and get a basic steel flywheel (they're about $100 new if you go with one of the catalog brands). The clutch kit should come with the clutch, pressure plate, alignment tool (plastic throwaway item) and throwout bearing.
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Old Nov 1, 2017 | 09:31 PM
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Budget is whatever it costs to get what I need. That's the reason for going with Summit or Speedway. They have the parts and list the prices. I could even hit Rock Auto. Shouldn't be be such a difficult purchase, really. I'll try McLeod and see where they are on knowledge and pricing. Don't want to buy piece meal though, some stock some aftermarket, what I'm really looking for is an all-in-one kit of sorts. Here's my coin, send me my parts. Easy and done, no mystery or shopping around. Should be fairly simple, doesn't seem to be for one reason or the next. If McLeod fails, probably just hit one of the Super Chevy-type forums and see what they're all recommending for the simple 1968 327 small block. Seems like the 327 came in every body style that Chevrolet made, not rare or special, ought to be a simple "go to" for what I need.

Thanks for the McLeod suggestion.
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Old Nov 2, 2017 | 09:25 AM
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I put the 158 tooth Mcleod flywheel and clutch set up in mine. The hard part was finding a gear reduction starter that extended close to the full length of the flywheel teeth. After 6 tries I ended up a gm high torque reduction stater. If you dont have high compression the original Delco bolted right up in mine no problem.

If you are going with a substantial weight reduction in the flywheel you may wa t to research the pros and cons online. I was thinking the same thing but apparently it kills torque for off the line drivability
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Old Nov 2, 2017 | 09:36 AM
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Thank you ! Great solid information—
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