My Low Deck 440 guys

[wyrmrider]

what rod choices there for the 4.25 stroke?
go long
you do not need as much overlap
or
you do not have to have as much overlap
but intake close and exhaust open are more critical as the engine goes throug the BDC area quicker with the long rod
which you can fix
with the short rod eents happen real fast around tdc
with chevies you often have to start opening the intake early just to get it open to follow piston demand max piston speed comes early
and yes 4 degrees matter

 

[Todd489]

Awesome, thanks man. I’ve just been back and forth but I’m going to go with the 496. What head/cam/intake/carb setup did you work with?

Hi, I have ported 440 source aluminum heads, Edelbrock RPM intake, Holley 950 street go carb 10-1 comp. And a dwayne Porter speced solid comp cam, 550 lift 248-252@.050 112LSA I also averaged about 15 to 16 miles per gallon!! Oh and also I have 1.5 Harland sharp roller rockers.TTi headers too.

 

[andyf]

Got a 69 383 block im putting into my 69 runner, wanting build a low deck 440 and I know plenty of people who’ve done it but I’m debating that or the 438 stoker rotating assembly from 440 source. It’ll be 10.5.1 comp and eddy perf rpm heads with a eddy perf rpm dual plain and 800cfm Holley double pumper and a lunati voodoo cam .533/.552 lift opinions.

Why the 383 block? Are you trying to do a stock appearing engine? The smaller bore of the 383 will kill some power over a 400 block. If you want it to be stock appearing you can just restamp the 400 block and tell people it is a 383. Nobody will know unless they crawl under the car to look at the casting number. A 400 block with a 4.250 crank and a set of Trick Flow 240 heads will be a torque monster on the street. Should make 600+ ft lbs without any trouble even with a mild hyd roller cam and 9.8 compression ratio for the garbage pump gas.

 

[Burns69RT]

Why the 383 block? Are you trying to do a stock appearing engine? The smaller bore of the 383 will kill some power over a 400 block. If you want it to be stock appearing you can just restamp the 400 block and tell people it is a 383. Nobody will know unless they crawl under the car to look at the casting number. A 400 block with a 4.250 crank and a set of Trick Flow 240 heads will be a torque monster on the street. Should make 600+ ft lbs without any trouble even with a mild hyd roller cam and 9.8 compression ratio for the garbage pump gas.

I’ve the 383 hp block already. And wanted it to look stock. Been looking at a lot of dyno numbers and builds of the 383 based 496 stroker with 600+ hp and people beating in them for years. I can get a set of Cnc ported 75cc eddy rpm heads for a deal. Or looking at new trick flow 240’s.

 

[wyrmrider]

u want it to look stock
stock heads and exhaust?
been there-done that
listen to andy f
that given use the longest rod you can even if you run part of the oil ring through the pin
much better choices of rings now
start there

 

[Burns69RT]

u want it to look stock
stock heads and exhaust?
been there-done that
listen to andy f
that given use the longest rod you can even if you run part of the oil ring through the pin
much better choices of rings now
start there

No I want it to look like a day two type of car I’m milling the brand names off the faces of the heads and painting them block color. Running headers of course. I’ll never run stock manifolds. Especially on a stroker motor. The plan so far is a 496 from the 383hp block I have. As it’s already at the machine shop.

 

[68 HEMI GTS]

Do yourself a favor. Give someone like Dwayne Porter (Porter Racing Heads) a call for the camshaft. There are others also. A off the shelf cam will leave a lot of power on the table. Dwayne can also supply heads as well. I run a Porter cam in my 400/511. Does everything I wanted. Broke into the 10’s in a 4000# car on pump gas that I can daily drive.