Quote:

---

Save the monster crank for a 440 block and build a 470 with the 400.

---

Quote:

---

Quote:

---

Save the monster crank for a 440 block and build a 470 with the 400.

---

My thoughts exactly. I have a 451 halfway there & if I could do it over I woulda offset ground it for 470 cubes and I have a 440 block next in line that'll get a 4.5" stroke 440 source kit

---

Quote:

---

I want to keep the internal oil pickup in it.

---

Quote:

---

Hey Guys has anyone put a 4.5 stroke crank in a low deck? I have a heavy webbed 400 block that I would like to add that extra stroke but I don't see anyone doing it. Will it just not fit? I have a heavy dodge prostreet truck to move around and I would like tons of torque! If not I can pick up a 440 block.

Thanks Joe

---

I've used both 4.25 and 4.300 stroke cranks in the same standard 400 block and had no problems with it beating the heck out of it for many years before trading the car off several years back As far as what your doing what size are the rod journals now? If 2.375 like stock Mopar your in for lots of grinding and maybe even hitting water in the bottom of some of the cylinders I use BB Chevy rod journal sizes on most of my Mopar BB and Hemi stroker motor builds now I am in the middle of putting a proposal together for using a set of GRP aluminum rods in a 4.500 bore World iron block with SB Chevy big journal, 2.199 rod sizes, I called Ohio crankshaft CO and they can make me a Hemi core crank to that spec. so if the customer pulls the trigger I will do that soon hopefully. Aluminum rods are quite a bit wider on the bottom end compared to forged or billet steel rods of the same rod sizes
BTW, I used a 6.800 long forged H beam CAT brand rod in my Duster motor, the pistons where hockey pucks and had the wrist pin in the oil ring,SO WHAT, no big deal really The piston skirts did come out the bottom of the cylinder walls at bottom dead center with no ill effects that I could find If you don't think out of the box and experiment you will never outrun the others guys, correct
As far as torque and Mopar BB use the 400 block for your deal , not a stock 440 block I'm sure a 4.375 stroke crank with 2.200 rod journals will fit in your thick main web block with very little grinding on the bottom end using a set of forged steel I or H beam rods

Quote:

---

I've had a '76 440 with an Ohio Crank 499" kit in it for 8 years now. That poor thing has has the crap beat out of it on the street and on the track.

Had a 180hp nitrous kit on it for a while that beat the ring lands out of one piston and broke the rings in 4 other cylinders. Lost 2 lobes on a cam and had to have it line bored. Had a balancer outer ring slip, causing me to set the timing too high for a weekend of racing. And on and on.

That engine has consistently put at least 500hp to the rear wheels. Not bad for a "thin web" block.

---

You better keep that one I've taken a 452 C.I. 1969 440 block apart that had aluminum rods, B1-BS heads made a little over 600 HP on a DTS engine dyno on race gas, the main web was broken between the #1 and #3 cylinders from the main web where the upper main bearing rides in and up and almost into the bottom of both cylinders I've seen the same thing on one 426 M.W. block and have heard of a lot of other 440 blocks that had cracked the main webs, no B.S., just bad luck on the owners parts I guess I try not to build any stock 440 blocks now that will have more than 750 HP on a engine dyno on good gas

Quote:

---

Now I don't know if there are any 4.5 stroke cranks that will fit in a stock block without major mods and external oiling. Is external oiling okay with the OP?

---

Good point Probally none out there unless you use Honda rod size crankshaft