Is it possible to make a 188 using US parts?

CoupeBoy

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Inliners thread for Argy heads got me thinking. Are the parts available in the US for a destroked 200 or would it require custom parts from machine shop or other company? Heck even a NA small six knocking out 170 flywheel hp would be a shocker to most.

I have a 200 block, 250 head and a couple 170's but im not sure if they are 4 or 7 main bearing blocks..

just pondering..

-ron
 
A 188 crank is just a 7 main 170 crank. Do those even exist here? Some say yes, but I'm skeptical. The US 200 and 170 use the same connecting rods as far as I know - the difference being in the pistons. The Argy 188 uses longer connecting rods I believe. Finding some of these might be worth hanging onto.
 
The advantage of the ARgie 188s is its ability to wind on and on, using a 4 main block defeats the purpose IMO. NO? But I like the 7 main 188 idea IF you can find a 170 crank from a seven main block.

DB
 
What Dennis said. One of the guys on here runs hydroboats with a 4 main 170 and claims 7000 rpm ussage from it however. The TC guys in Argentina are getting forged 188 cranks from somewheres....
 
Actually, 8400 rpm from a 2.5" stroke 144! Four bearing, steel crank.

The 2.94" crank is found on 1965 to 1968 Aussie Falcons, and the early Mavericks till 1973 ran them.
From 1960 to 64, they were four bearing. The four bearing crank won't break in a hurry, even at 7 grand!

The 188 in a 200 block is hard as the pistons would park 100 thou lower. The best option is some 4.2 V8 or 2.5 HSC pistons, and deck the block a little.

The Argie and Aussie 188's ran 5.41" rods, and a taller 8.425" block. This made them very free reving, with a perfect rod to stroke ratio.

With the 4.71" rod, the rev range would still be pretty good. With the Aussie 1.156" pistons from ACL, you could fit a set of 289 rods on to a narrowed journal 170 Maverick crank, and get a pretty good combination.

It's all very expensive when you come down to it, unless you get the parts cheap, and know why your doing it.
 
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