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201 into a 226

A

Anonymous-0

Well-known Member
Hi,I have the oppurtunity of getting a 1947 WC. My question, Which I am sure has been asked Hundreds of times on here is this. Will a crankshaft from a 226 (WD 45) Bolt right into the 201? and doe's a person need to use the 226 rod's or Pistons, frontpulley, flywheel? Or can I use all that from my 201. Will the intake/exhaust manifold interchange? I am planning on buying new sleeves and pistons so would appreciate any info. Thanks.
 
4.5" stroke WD45 crankshaft is a drop in swap in place of the 4" stroke model in the earlier WC & WD models. connecting rods are all the same, but you need to use WD45 pistons. Manifold,head, etc. are all mix & match propositions between all of these models. BTDT, Kip
 
The camshaft is the same in all of these models. There are diferences in how the cam gear bolts on but is of no consequence. The cam profiles are exactly the same. Kip
 
Like Mitch suggested buy a good 4.125" sleeve & piston kit. This over-bore along with the half inch stroke increase will put you right at 240 cubic inch displacement. The bigger bore pistons with the stock 4" stroke crank gives you 217 cid.
 
The mix and match all will fit, but you need the WD45 manifold, carb and air cleaner to not strangle your potential power. With the 4.5" throw crank, use power crater pistons. Also, we sometimes had to grind a little meat off the block to allow the crank enough clearance to spin.
 

One question..???
When did AC go away from a combustion chamber in the HEAD.??
I know that the WD-45 and D-17 Gas both have a flat head..are all WC's Flat Head..??

For a little more compression, you can put the "D-17" 4 1/8" kit in it..
That will give you 7.4:1
Standard WD-45 gas is originally 6.5:1
7.4 is about the "Limit" for working in the field, but is not critical to tune..
Same price for either piston/sleeve kit..
Probably will require 12Volts to spin it over, or 1/4 turns on the crank...won't be spinning it with that size and compression..but will crank, if you want or need to..

Ron..
 
i run flattops in my wd45 with a offset grind and the piston is 400 thousandth from the top of the block and it will run just as good on 87 as 110 racing fuel.
 
I think an offset grind involves welding up the outside of the rod journal. After that is done, the crank is ground again only this time it is ground for a longer stroke. Can be done to a point to gain stroke without needing the lengthen the actual throw of the crank. No idea how much can be added to the stroke doing this, but thats my understanding of the process.
AaronSEIA
 
the welding on the crank is adding stroke to it. offset grinding is you take a 45 crank with has a rod journal size od 2 3/8 inch. you take that and grind off the bottom side of the journal to a 2 inch rod size. that way you are taking 3/8 inch off the bottom and throwing it to the top so you gain 3/8 of and inch stroke making it 4 7/8 inches. the journal has to be ground with the same angle on it as it has and if it is done wrong when you roll the engine the rod will hit the sleeve. you have to get a set of rods from a wd45 buda diesel which has a 2 inch rod journal. then you get a set of wd or wc flattop pistons but the only problem is you have to make a wrist pin bushing cause they are no longer made and make it a floating pin. this puts the piston 400 thousandths from the top of the block.
 
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