I am kinda wondering.... LOL. That would be fun, take guesses on a stock RV 440 in the truck. Probably get everything in guesses from 16.9 all the way down to a fried mind guessing 11.2's
Brainstormin' 440 vs 5.9 ...
- Thread starter 318willrun
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I haven't the faintest... lol
Keep it under the bench, the 440 is the way to go.
That 383 was in the thought of becoming a ghost buster.... and I'll leave it at that
Look, the last time I had verified CR the engine fell on it's face and croaked a miserable ET slip. I told myself... "ain't doing that no more... that cost HP "
In all seriousness, you should know by now I don't have the numbers and stuff you post. I post ET slips... the only number I understand. All else is spitt'n chick'n if it don't stop the clock.
Be lucky if the 383 was 9.1, I've had several factory 68 383 that were at zero deck or slightly proud.Look, the last time I had verified CR the engine fell on it's face and croaked a miserable ET slip. I told myself... "ain't doing that no more... that cost HP "
383's were all over the place up to about 70. Some were as low as 8.1
Turbo440Dart
crank runner over-er
That can wait for a beautiful spring day, in the meantime, you have 4 months formulate your plan and execute it, chop, chop.
4 months to make the iron chip pile bigger working the heads you mean.
You remember the low compression 440 Jim Laroy did the pulls on and then made some mods. I think the lowest was a blueprinted 7.35:1 if I remember. He got respectable numbers after making some changes, but the compression stayed the same, until he put some closed chamber heads on it. Even still, it was barely 8:1.
Black Friday sale at Speedmaster is right around the corner.... see what they have (I won't buy their BB heads)
have you experienced these heads?
Competition Products is right up in Oshkosh, WI. I believe they do the valve job in house.
I do not. But they are just 30 min from here. An option.
Also, Marsh Performance - Sidewinder Heads. Tim is a good guy.
I go by Oshkosh now and then....
210 intake runners? Kinda small ain't it?
They are Howard's Cams as well. Just FYI
I dunno... what's factory?
I watched a cast iron headed (906) - stock stroke 440 in a Dart go 10.50's with 3.55 gears. Solid cam, 850 Holley, pretty impressive for a car that could be driven on the street.
That's why I question the flow #'s, as we know Trick flow #'s are spot on with 240cc intake runners. flowing a touch over 300cfm@ .500
Anyone have experience with SM rockers?
Mopar Chrysler BB 383 440 1.5 Ratio Aluminum Roller Rocker Arms & Shafts
Mopar Chrysler BB 383 440 Shaft 1.5 Ratio DNA® Aluminum Roller Rocker Arms Set
This looks nice .... but maybe a little aggressive idle
Howards Cams 728041-09 Howards Cams Rattler Camshafts | Summit Racing
Howards Cams 728041-09 Howards Cams Rattler Camshafts | Summit Racing
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