221 cubic inches from a 200 engine

NB// and not directed to anyone, just CFYI.

The tech article on X-flows and Aussie non cross flow and 2v engines has been wrong since 2002, and hasn't been ammended. 221 Rod sizes listed incorrectly and dates of the alloy head (October 1980, not 1978), 2-bbl carb Alloy Head II (1982, not 1978).

bubba22349":3vrelfaf said:
Never seen one of them. Do you know were I might find some pictures of the 221 block and parts?

There was a link to the ARDIE 221 crank formed by adminstrator Bedtime back in December 2002, but its long since gone. It was from a 1988 Aussie Streetmachine article. Last block I raided was in 1997 off an XT Falcon, so I don't have any pictures sorry. Asside from its wide block and extra 622 thou height, you can't pick it over a seven bearing 200 appart form its wow man red rocker cover and red block paint. It was rated at 135 hp gross, had the Dodge truck Stromberg 1-bbl carb like all Aussie sixes before mid 1976.


The Aussie 188/221/250 cam chain is the stock 200 timing chain, plus one link = 26 links instead of 25.

The extra link out places the camshaft further out, ultimately able to accept a 3.91" stroke with 2.124" crank jounal and so the Aussie 221 and 250 are the same regards cam placement, just like the 2.3 and 2.5 HSC Fours. The cam got relief cuts with the 200 in 1963, and cam to rod clearance is the same with the 250 as it is with the 200...marginal.


Details.

The 1964 XM and 1965 XP Falcons were XK 2000 based, but the Geelong build engines had the Aussies rolling out wide block variants with a variant of the 221 V8 (260/289 five bolt block 160 teeth) flywheels used for 9.25" cluthches to fix the massive waranty claims Ford Australia suffered with the 136 teeth 8.5" flywheel, a design which couldn't cope with the bulldust and heat of the outback without slipping.

These Geelong built wide block small sixes were seven bearing 200 Ford based, but lots more things were changed when the 188, 221 and Aussie 250 came out!

The Aussie and Argie 188/221 block were called 3.1 and 3.6 litre engines in funny English in when released in the 1968 XT Falcon sedan, utlity and wagon, and also the Aussie small Falcon wheel arched Fairlane but the engines only lasted for 2.5 years untill the 200 and 250 cid 1971 XY Falcon came out . The 1969 XW Falcon/Fairmont/Futura and Fairlane got it too. The two 188 and 221 engines were essentially duplicated in Australia and Argentina, but the engine survived untill 1995 in South America.

Detail changes for instance. The sump grew in width to about 1/8" to 9.25" and the block deck height for the 188 and 221 is 8.425", 622 thou taller . Rods were about 5.38" for 2.94" stroke engine, which used the small seven main bearing seven bearing 170 crankshaft which Dearborn designed in 1961. The 221 had a 3.46" stroke and 5.14" rods, used in Argentina too. Rods were forged steel.

The 1971 Aussie 250 revision was three years later than the US Falcon Pickup 250 commerical engine which was listed in 1968, (October 1967, really). The US 250 got a really big front crank snout, was 89 thou taller than the Aussie engine, an inch wider than the Aussie 250 at the sump and engine mounts, had the SBF flange pattern. Both Aussie 250 and US 250 got bigger mains, 5.88" rods. The Aussie engine had the same deck height as the 1986 Ford Taurus base model 2500 cc HSC engine, 9.38", the US engine 9.469". The 1982 2300 and 1986 2500 HSC used differient block heights, but the cam chain was US 250 based. Dearborn was first to upgrade the bearing sizes and crank snout, and it must have been done for solid reasons, and it continured in the HSC fours till 1994. The Aussie 250 based engines still use the smaller 200 Ford sized crank snouts, which remains to this day with all the OHC engines.
 
I'll send Mike a list of 10 mistakes on the Australian six article http://www.fordsix.com/OZsixes.php

It's a great artical, typical of A7M and JD's time and effort spent setting people on the right path.

It just needs some 'short hand' changes next time the admin staff are doing some changes.

Note 1 1964 Auto Transmissions got wide block adaptor
Note 2 then 1965 XP got the wide block and some got seven bearing engines
Note 3 In 1971 the revised tall deck 200, 250 and 250 2V



Note 4 1978 should be 1980 and
Note 5 EFI was late 1982


Note all 200 and 3.2 engines have 3.126" strokes

Note 6 5.51" is wrong and should be 5.14"
Note 7 and 8, 1978 should be 1980 for Alloy head (each line)
Note 9 the 3.2 is 3149 cc and 192 cubic inches, 3.9 is 3939 cc, actually a 240 cubic inch engine, and each has a 3.612" bore ( unbored 68 thou from the 4.1)
Note 10 the 4.0 is 3983 cc. is actually a 243 cubic inch engine and bore is 3.632" (20 thou over 3.9)



Note 11 I was wrong on the number of Morse chain links. 144/170/200 and the special Argie 187 engines all ran 50 link chains, up to six links deep. The 188/221/250 ran 52 links, two extra, and from 1976 on, got seven links deep construction.

Top cog is 38 teeth, bottom 19 teeth, circumferential chain run is about 18.75" on the short deck 200, and 19.5" on the 188/221/250. The earlier link belt "chain" is 3/8" (0.375" pitch) Based on two links difference, the resulting cam shift can be worked out, but its around 0.375". That gives another 0.375" of throw on a 3.126" stroke, which works out to 3.876". The stroke of the 250 is 3.91", so that's why the cam had to be relieved before the 200 came in to being.



I'll have to count it again, but the gears are behind the couch... :oops: and my wife might see me getting them...wait, found 'em

http://i1215.photobucket.com/albums/cc5 ... ottom5.jpg
http://i1215.photobucket.com/albums/cc5 ... chain4.jpg
http://i1215.photobucket.com/albums/cc5 ... chain3.jpg
http://i1215.photobucket.com/albums/cc5 ... chain2.jpg
http://i1215.photobucket.com/albums/cc5 ... gchain.jpg

This was kindly bought to you by my cell phone cam, my wifes Mohachino knee tray and the chains behind my couch. No people were harmed during their production
 
Excellent info xctasy, and thank you very much for the pictures of your build redxm good looking timing chain set shame they don't make a US 250 version could use one for my build. I take it that the 221 engine and cranks would be hard to find being used for such a short time before moving on to the 250's. This has me curious as to why the US 250's used an even taller yet block than the AU blocks, maybe they were planing another stroke increase? I been thinking of that for my current 250 IE Finding and building a longer rod combo and or off set grinding the crank some too. You guy's got me thinking now..... :rolflmao:
 
Yep, unmachined 221 cranks and blocks are getting hard to find these days. In the 80's Holden people used to pinch the 221 cranks to stroke their 202 red motors.
 
:shock: Ford crank in a GM motor, would never have though that would happen :bang:
 
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