[ponyakr]

"...Looking to build a 434-440” in a 400 block...with Pontiac rod journals size. "

Not aware of a 3" main 4" stroke crank with a Pontiac rod journal size. I think it was member PONTIAC DUDE, down in Florida, that use to make & sell those spacer kits, for using the cut-down big main cranks in 3" main blocks. But after the cheap Chinese cranks came on the market, the demand went away. Doubt he still has any & doubt anybody else makes/sells em. Could be wrong.

But, forged cranks are available in the 4.210 stroke, 3.00" main / 2.249 rod bearing size.

They ain't cheap.

Here's a rotating assembly listed on the KRE site.

" Ohio forged 4.21 stroke crank with 3.00" main journals, Keith Black Forged Pistons, Eagle 6.625 H-beam rods, Total Seal file fit rings, FM rod and main bearings. $2,094.00 "

[url]http://www.krepower.com/Pontiac%20Rotating%20Kits.htm[/url

Just the crank is listed @ $800 plus shipping.

" 4340 forged 4.21 stroke with 3.00 main - Pontiac journal $ 800.00 "

http://www.krepower.com/Pontiac%20Cranks%20and%20Rods.htm

The cranks are listed @ $770 + shipping directly from Ohio Crank.

" 44004210P 4340 forged 400 4.210 stroke w/Pont journal $770.00 "

http://ohiocrank.com/crankshafts/#Pontiac

I have no idea if any of these prices are current, or if any of these places actually have any of these parts in stock.