Plan on installing sbc into stock 1940 Ford using stock transmission. I've already got the adaptor. Will this setup work without altering the wishbone? Will any chevy 168 tooth flywheel work if I have it drilled to accept the pressure plate? Can I get a diaphragm pressure plate to use with the stock t.o. bearing and arm? The rest seems like a typical engine swap.
Here’s my adventure in doing just that. Finishing it up this week, hopefully. Maybe can save you some mistakes. https://www.jalopyjournal.com/forum...ay-updated-9-24.1265297/page-11#post-15371448
I would look for the GM 3729004 168 tooth flywheel, takes the 10.5 clutch. Ram 401 pressure plate, and Ram 212 clutch disk that will mate to the '40 top loader. Stock throw out bearing. The Ram is a diaphragm PP. Depending on which adapter you have, you can use the starter for 168 tooth diag bolt pattern, or the cast iron nose that has the 3 bolts.
It's seems that I got more of a problem. The sbc I have is a 1988 and a one piece rear seal. The flywheel I need is a 1986 and earlier with the two piece rear main. Is there any way a later model flywheel will work?
Go to this link and chose either. Search was set to 1-pc RMS. https://www.summitracing.com/search...tOrder=Ascending&keyword=flywheel&kr=flywheel
I bought a project 40 with a 67 Chevy 327 engine that is using the stock running gear. So far what I notice is that the clutch is pretty stiff to release with the pedal. I'm guessing it has the 10 1/2 inch clutch from the Chevy so if that is what you are using, don't be surprised if the clutch is hard to release. Chevy used a long fork where the 40 uses a shaft that has to be rotated which I believe you lose the leverage needed to release the disc easily. My thoughts.
This one from Ram may work, its for 1 piece rear, 10.5 and 11" clutch. https://www.summitracing.com/parts/ram-1531/make/chevrolet
I bought a flywheel that had the bolt pattern for a 50 Merc pressure plate already so it was all bolt in, no redrilling necessary
Yes, but was it for a 1 piece rear main application? I would have to do some digging to see if GM has a stock flywheel for 86 and newer that had a 10.5 clutch. The 3729004 GM flywheel has the Merc pattern you speak of.
Use a Chevy diaphragm pressure plate with the ford clutch disc and a pilot bearing from Speedway and good to go
As I shared in my thread I used a billet flywheel from Summit, (Centerforce 700160) for a one piece seal crank, 168 tooth, drilled for both pressure plate patterns, with a Borg and Beck #1310 pressure plate (49-50 Merc) and disc (Ford) from Ft. Wayne Clutch, with 40 throw out bearing. Pedal effort is good with stock 40 linkage.
It appears that I can use either a Ram 1530 or a 700160 flywheel. The 1531 is internally balanced and I'm needing an external balanced unit. Chevy diaphragm with ford disc seems the cheapest way to go. Thanks for all the input.
In 1962 I had a 40 Ford convertible with a 265 Chevy V-8 in it. It had the Hurst motor mount and the set up used by hotrodA in his post. I think it was the stock Chevy flywheel. Wishbones were not split.
If you use the 10” Borg and Beck 49/50 Mercury pressure plate the clutch is very easy to depress Easier than Ford Long type
does the chevy diaphragm clutch work with the 40 throw out bearing? My 40 has a 331 Caddy and I used a Ford truck clutch , I think it is an 11 inch? the clutch pedal on my car is very easy
I don't know. The only thing I've found so far is a quote from Squirrel. The bearing you use, depends on the clutch pressure plate. If it has flat fingers (diaphragm clutch), you use the long bearing. If it is a 3 finger or has angled fingers (diaphragm) you use the short bearing.
there is only one type of throw out bearing for a 40 Ford. I am pretty sure squirrel us talking about the bearings you use when you are running a chevy transmission
The borg&beck 49-50 merc pressureplate is almost impossible to find anywhere, you can find all the other pieces needed easily , but use a 56-58 Chevy flywheel if memory serves me correct, it’s drilled for the merc pressure plate
I used a freebie flywheel from a 64 c10. It was drilled with the Borg and Beck pressure plate. I’ve got a 51 merc pressure plate to get rebuilt if I use it A swap meet speed gems adapter. https://content.speedwaymotors.com/...3*MTcyNzMxNTQxOS4xLjAuMTcyNzMxNTQyOC41MS4wLjA. just read the one piece read main engine mentioned. never messed with one
Here's a great thread that covers a lot on the subject, only difference is OP needing external balanced one piece rear main flywheel... https://www.jalopyjournal.com/forum...-with-327-sbc-39-trans.1273118/#post-14597565
I think I'm going to try a diaphragm pressure plate with the stock throw out bearing. After all, what could go wrong? A friend of mine does own a slide back.
I would hate to see you try this and end up not being able to adjust the clutch linkage enough to make it work. There must be a reason why every single one of these ever shown has used either a 50 merc or ford truck clutch. and they are 3 finger borg and beck style
See post number #4 https://www.jalopyjournal.com/forum...em-throw-out-bearing-and-three-speed.1103662/
you take the late model flywheel to a machine shop and have it drilled and tapped to fit the proper clutch, it has been done thousands of times
The two flywheels mentioned in post #12 are for 1 pc rear mains, externally balanced and are drilled for a Borg and Beck #1310 pressure plate (49-50 Merc). My Nighbor told me he had a 39 convertible with a 307 v8 and flywheel with the stock 307 diaphragm pressure plate and a 39 Ford clutch plate and linkage from a 1940 side shift transmission with column shifter. Said it drove great but was just a cruiser. He doesn't remember the name of the adapter bell housing. If I put the pressure plate in and it doesn't work, it will be pretty easy to switch to a three finger one.
From what I understand the reason for using the 49-51 b & p pressure plate is because it shares the same pattern as a Chevy pressure plate. And there was no drastic pattern change based on rear main seal. Helped swap a buddy's full size GMC from a vortec 4.3 to a vortec 350. We wanted a heavier cheaper clutch set so we ordered one for a 78 k20. Bolted right on. Worked like it should despite completely different linkage. And had the same pattern as my 57 Chevy flywheel. In fact as a result of most one piece rear main engines being bolted to light duty nv3500 transmissions the flywheels are almost guaranteed to have the smaller pattern....if not both patterns