orench hows the weather there? never mind don't tell me.Anyway, last year i converted my 327 275 hp to a 4 speed, and i used a 11 inch flywheel and clutch. had a 10.5 flywheel in my 69 z and was'nt happy at all with it as far as launches. As far as my 327 wow what a difference! the 11 inch clutch explodes of the line, and has good pickup at mid/high range cruising speeds. i'm sure you will get other input to use a 10.5 clutch but i'm sold on a 11 inch. GM used a 11 inch in the ss350 cars. look at it this way, when you put the big block in, you'll be set up for it clutch wise. the best place to find a good used flywheel is probably on this site or some vendors such as Ricks, DR, or a new one from Summit or Jegs. good luck!
I would look for a nodular iron flywheel and have it resurfaced and neutral balanced. You should be able to find one at junk yard or check with a clutch shop. The clutch shop could also do any machining needed. The size could be dependent on your starter.
Weather? HOT with rainy afternoons as we step out of the hurricane season. Haven't check with any Chevy dealer here, but I doubt they are willing to go the extra mile to help with older applications. I'll give them a try anyway. As for nodular flywheels in junkyards here, no kidding, 99.99% of them have cars from the last 20 years the most, unless that part comes out of newer models. My only option, for that kind of parts, has been mail order but I'm uncertain from which company and whats the best for the money. Thanks
I went with the Hays 10.5" set-up in my 69. Picked the flywheel up from GMPP for about $172 (one piece rear seal). If your motor is the older style, two piece rear seal, you'll be looking at $155. My buddy brought a container to Guatemala and I escaped without having to pay shipping (it's heavy). Being in Puerto Rico I would at least take a look in the boneyards to see what they got. If there is a descent muscle car scene over there you would be surprised at what you can find or trade for with other enthusiasts. As for the performance of the smaller flywheel and clutch, I can't complain. But my car is pretty mild compared to the rides of these speed junkies in here
I agree with ORAMAC68, if you plan on stuffing a big block in your car go with the larger set-up.
1969, X-44, Export Model, Hugger Orange, Std. Int., BC Rear(soon to be a BT 12 bolt), PDB, GMPP 350HO, M22 Supercase, SSM Lift Bars, AirGap, Holley 750, FlowMaster American Thunder Exhaust, FlowTech Headers
Orench, go to www.scoggindickey.com and look thru their online catalog to get the part number you want. They are a Chevy dealer in Lubbock, Texas.
You can then take the part number to your local dealer and have them order it for you. Or you could order the flywheel from Scoggin Dickey. Their price would be much better, but you would have to pay shipping and handling, so it may still be cheaper overall to buy locally. Flywheels are expensive to ship due to their weight.
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