hey brian i keep trying to run your stroker build on dd2k, and some how i get it wrong. what settings do you use? this is with ported 4V closed heads with 2.25 and 1.75 valves.

 

I don't have a desk top dyno, it's the curse of the Macs computers.

Which stroker? The 427/400 or the 460/400? All the votes are not in yet for the bigger one.
The 427 will have A3 heads with 2.19/1.71 valves. The only numbers I saw once were 360CFM intake and 240CFM exhaust.

 

i was talking about the 427 using 1970 4V heads. i was under the assumption you had dd2k. what dyno program do you use?

 

I never had one. I tried one at a friends place, but it didn't seem very accurate. I usually recommend 4V heads if people want to build one, but I always planned on using the A3s on mine. They come with the same quench chambers as the 351 4V. What do you need?

Wanna hear about a 431/351C stroker?

 

hate to cut in but , yes, do tell bout the 431.
info.........links.........guesstimates on hp & tq

 

the dd2k doesnt like how far down in the cylinder the piston is, there is no setting for zero deck or close to that. was just wondering what setting u used. since you dont use one, i guess ill have to keep guessing.

 

It happens, you but a few parts off Ebay thinking you got a deal, but when they show up you find out that it wasn't quite what you thought.

I picked up a rebuilt Cleveland shortblock for $400, when I got it found it was .040. I forgot about the thin cylinders and wasn't sure if it was going to be reliable. I had other irons in the fire so it had been sitting in the corner of the garage.

Lemon 2 was a set of pistons. Custom JE, forged, 22cc reverse dome, .040", slightly used but very nice. $200. I wanted them for a blown 400 application, so I felt the .040" wouldn't be a problem in an M block. I didn't realize they had a very short compression height of only 1.1" The problem was finding a rod long enough to use in a 10.3" deck. Not easy, I didn't think the piston would be stable enough in a blown application either.

A few months ago, I shared an idea on the Cleveland board about a way to increase the deck height, by making spacer plates. I'm convinced that adding up to a .375 thick plate is possible without much expense. It's somewhat labor intensive but straight forward. The material costs would be less than $100. I have an amateur machine shop in my garage so labor is free.

If I add a .274-.294" thick plate, it would give me a 9.48-9.500" deck height, the same as a 351W. A variable height opens up all kinds of options from aftermarket suppliers.
435/351W (.060 bore) stroker kits use a reasonally priced crank up to 4.200" stroke. I'm fairly sure these are 400 cranks, offset ground, 2.1" chevy journal size and modified to fit the W block. I'm sure I can find a professional machine shop locally that can grind a 400 crank to these specs. I'll be using 6.25 or 6.3" chevy length rods. .927" pin just happens to be the same as the custom JE pistons.

22cc piston will give me 10.25:1 compression with CC 3514V heads. This will not be a daily driver but I want it to run on pump gas.
I'd guess 475HP, 500+TQ @ 6000
Pistons are very light but high RPM is not needed.
That like a 351 @ 7370.

What did I leave out?

 

what cam you thinking about

 

I haven't looked for any, but the specs should be similar to a split duration hydraulic, .575 lift, 235 deg duration @ .050 for the intake, .625" lift, 245 deg @ .050 for the exhaust. 110 deg LSA.