Just to make sure I'm reading this correctly you used a 383 crankshaft, turned into that stroke, lol I thought u used a 383 block and got a .125 overbore . Lol I really misread that, good work rob !
400/426 Stroker. Ever heard of one?
- Thread starter slimjim
- Start date
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400 block and turned 383 crank
You caught it before I edited my post. Thanks
On a quick overview of the 340 to your offset low deck crank build, they’re kind of similar with big bore and short strokes. I’m sure the low deck will spin quick and high.
Considering the low $5K budget, home porting OEM cylinder heads seems like the best option. Also @ .474 lift, the best and most gain you’ll find in flow is in the bowl area and short side. After that, I’m sure you’ll find gains in flow but not a lot and I’ll call it not worth the pursuit. Once you go up into the port, it’s focusing on high lift/flow areas.
I’d bet even a set of new valves would be within the budget and really help a lot.
Food for thought? Yea?
Contact member PRH for a tip on this.
What do you have for an intake?
Why not just build a 451 ? A few extra cubes won't hurt. My 451 spins like a small block and has lots of grunt.
It just seems the better one to build would be the 451 by dropping in the 440 crank.
Ron, I gotta tell ya, I agree but, since you whet the bigger is better, why didn’t you suggest a larger engine like a 470 or the big crank for a 498/500 or bigger ye 512 build?
Not for nothing, he did state he knows about these set ups, he mentions in his video 440source.com about it. I know you watched the video right?
He also mentions he wants a to do something different which seems to be a problem for you and others. Why is that?
So a guy chooses to spend his money the way he wants to and tells everybody so and yet everyone side steps that noted comment by the builder and act as if it’s not a fact only to suggest spending his money on something he doesn’t want to do which is actually the waste of money.
Am I missing something here?
So far I get it’s not;
OK to be creative
Do something different
Spend your money the way you see fit
Have fun your way
But instead follow the herd;
Purchase what is popular (even though you don’t want to)
Do a build you don’t want to do
Etc….
I don’t get it. I do know it sucks doing things differently than what the herd does. Lord knows I got it on most every thing I did and do. Things like;
Run a MoPar
Run a small block
Use a TQ instead of a Holley
And the list goes on & on & on…..
The real waste of time is not doing what you want to do and follow others on what there doing and ignoring your inside and trying to be creative or different while having fun.
I get this crap **** from Chevy guys. They all have their list of reasons which boil down to the Chevy being popular and cheap.
If popular and cheap fit you, God bless you but don’t devil shame me for using what I want and not being of the same mind set especially being cheap and running what’s popular because it’s plentiful and cheap. Even more so just to save money.
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slimjim
Well-Known Member
I’m trying to score a set of 915 heads which, is difficult to do here in CA. Ideally, I’ve got about $800 max to throw at the heads. New valves and maybe even valve seats would be priority if budget allowed.
An you yourself or have you ported a head before?
WOW, a Red X for asking a question. Harsh. Kim
67Dart273
Well-Known Member
Yes. Only two stock strokes in B/RB. Old 361/383/400 all same stroke. There was an oddball RB 383, AKA same stroke as RB
All factory RB same stroke, 413, 426, 440
Bingo.
B engines, 350, 361, 383 & the 400 all have a 3.38 stroke.
RB engines, the odd ball 383, 413, 426 and the 440 all have the 3.75 stroke.
B engines, 350, 361, 383 & the 400 all have a 3.38 stroke.
RB engines, the odd ball 383, 413, 426 and the 440 all have the 3.75 stroke.
RAMM
Well-Known Member
Interesting to look at some balancing information.
471 W/ ICON dished pistons and Eagle 6.535" Rods = 2297.5 Bobweight
360 W/KB Hypers and OEM Magnum Rods(lighter than an LA) = 2074.5 Bobweight
426 W/Mahle and Eagle 6.7 Rods = 1941.5 Bobweight
J.Rob
471 W/ ICON dished pistons and Eagle 6.535" Rods = 2297.5 Bobweight
360 W/KB Hypers and OEM Magnum Rods(lighter than an LA) = 2074.5 Bobweight
426 W/Mahle and Eagle 6.7 Rods = 1941.5 Bobweight
J.Rob
WHOA! Very nice.
slimjim
Well-Known Member
Finally got the short block assembled!
DIY Mopar 426 STROKER - FULL Short Block Assembly
DIY Mopar 426 STROKER - FULL Short Block Assembly
I love your build. Question. How much hp and rpm's do you think the 383 crank will hold after grinding and would a 440 crank ground the other way be stronger? I understand you would also have to grind the mains. Just wondering what the limits may be. Anyone's guess appreciated.
Just do like I did when I was 16. Walk up to that beeotch on your time, chuck one up on it and start playin around. I went through 5 or 6 old 305 and 350 Chevy cranks and then I figured it out. ....but of course, you have to have a boss that will actually let you do that.
He's afraid the stone is going to blow up lol.
I do need to check the thing out for visual cracks.
That is a good idea, we have a lot of junk to practice on.
He'll let me ill just tell him I want to make him more money
What kind of grinder is it? The one I learned on was a Van Norman 477. I know there are way more "modern" machines now, but it was a nice old grinder and did a really good job. That old guy kept it in tip top condition. There were digital dial attachments available for it even back then (about 1980-81) but he swore he'd never get them and he never did. He said keeping "fresh" on reading analog dials and mics made a better machinist out of you and that the digital stuff made you lazy. lol
Yeah I believe it is exactly.
I agree Im not a digital guy.
....and there's nothing wrong with the digital age, I'm not knocking it. There are some VERY sophisticated machines out there now. Snake had a point, though. I could roll a mic over anywhere in its travel and hand it to him and he'd rattle off what it was in a flat second. He was a retired WWII old Navy guy. I miss guys like him.
No there isn't anything wrong with digital.
No matter how much of a small block Chevy circle track guy my boss is he has a wealth of knowledge ( which I don't ever equate with Chevy guys lol) and he gets pretty happy when I ask him questions or say hey, "is this how you would go about this? "
We're both old school type guys now if I can just get him away from "safe" size camshafts lol .
slimjim
Well-Known Member
I’m using off the shelf rods and pistons with my 426 combo.
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