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Looking for 440 rebuild kit to improve torque #3044008
05/20/22 08:03 PM
05/20/22 08:03 PM
Joined: Jan 2003
Posts: 20,629
San Jose,CA
migsBIG Offline OP
Too Many Posts
migsBIG  Offline OP
Too Many Posts

Joined: Jan 2003
Posts: 20,629
San Jose,CA
Since I last posted on here, decided to start collecting parts to build my 75’ Trailduster. A friend was in desperate need and ended up selling him my last street 440 I had, so now I will need to build one for the truck. Looking for rebuild kit or to put something together to build on the engine. It’s a stock 205hp 75’ cast crank 440. I want to continue to run goatpiss that passes for 87 octane in California. I’m not looking to make big horse power, more like torque, so a good street-able profile is good. If I can up the horsepower to 300+ and have much more torque and not affect the mileage to much for city driving and a little hauling around the area.

So looking for a good quality rebuild kit with pistons. Would love to hear ideas on a cam/lifter. Also plan to run a thermoquad, RPM intake and stock electronic ignition. Also, looking at possibly headers as you guys told me it would help with torque. Keeping the 3:55 ratio gearing in the truck if that helps.

Re: Looking for 440 rebuild kit to improve torque [Re: migsBIG] #3044303
05/22/22 12:01 PM
05/22/22 12:01 PM
Joined: Mar 2010
Posts: 956
Atlanta, GA
M
mgoblue9798 Offline
super stock
mgoblue9798  Offline
super stock
M

Joined: Mar 2010
Posts: 956
Atlanta, GA
Two things for torque- get as much compression ratio as you can run at your octane level, and get a modern cam grind.

Jones cams has a grind I like for truck motors but check with him after filling out his cam card questionaire with all of your info and see what he recommends. specs below.

I would look into getting a step head design piston from KB to get quench and 9 to 1 compression with your open chamber heads. Or if your budget allows, 440 source heads and six pack type flat tops zero decked.

Oem intake or regular performer so the .thermoquad doesn't need an adapter. You wont be spinning a 440 truck motor above 5,000 rpm anyway. Headers and good exhaust.





H440D64307
256°

202°

.307″

.461″

Re: Looking for 440 rebuild kit to improve torque [Re: mgoblue9798] #3049425
06/10/22 01:36 PM
06/10/22 01:36 PM
Joined: Nov 2021
Posts: 50
Falcon, CO
Mad-Max Offline
member
Mad-Max  Offline
member

Joined: Nov 2021
Posts: 50
Falcon, CO
...while I haven't had it out on the main streets yet to see how well it does, the Engine Pro MC1787 is the cam I put in my 440 (it was what came in the engine master rebuild kit ordered from the machine shop). It idles smooth, and from the few hours it's been running /driving around the property it seems to have loads of torque. My truck was built to be a multi-purpose camping/rock-crawling rig that is also 100% streetable - it rolls on 40" Toyos with 5.38 gears. I found the engine buried deep inside a '79 Winnebago motor coach - it is a 440-3 block with standard 452 heads, and got a standard 'RV' rebuild with ~9-1 compression.

Engine Pro MC1787, hydraulic flat tappet
- Duration @ .050 Intake 204 Exhaust 214, Advanced Duration Intake 278 Exhaust 288; Valve Lift .420 Exhaust .443
- Lobe Sep. Intake 107 Exhaust 117; Power range 1500-4000; Idle: Smooth
- Comment: Torque Cam strong low to mid range torque and pulling power.

- Sam


71 Demon: 318, A-833od, 8-3/4, 3.23ls
74 M-950 Power Wagon: 5.9 6BT, 47rh, 203/205, rockwells, 46s
02 Dakota QC: 440, 46rh, Atlas4, D60/14b, 40s
07 Ram 3500 MegaDually 4x4: 5.9 6BT, G56 'Toy Hauler'
94 Grand Cherokee: 318, 46rh
52 Willys M-38
Re: Looking for 440 rebuild kit to improve torque [Re: migsBIG] #3049475
06/10/22 05:54 PM
06/10/22 05:54 PM
Joined: Dec 2009
Posts: 18,765
in a cattle trailer down by th...
G
Guitar Jones Online laugh2
Paddle faster! I hear banjo music!
Guitar Jones  Online laugh2
Paddle faster! I hear banjo music!
G

Joined: Dec 2009
Posts: 18,765
in a cattle trailer down by th...
Stroke it to 490-500 cubes. Torque for days on pump swill.


I raise chickens, so I am literally a chicken tender.

The Scamp is sold, now just two old trucks and one newer one.
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Looking for 440 rebuild kit to improve torque [Re: Guitar Jones] #3049551
06/10/22 11:05 PM
06/10/22 11:05 PM
Joined: May 2003
Posts: 6,347
Downtown Roebuck Ont
Twostick Offline
Still wishing...
Twostick  Offline
Still wishing...

Joined: May 2003
Posts: 6,347
Downtown Roebuck Ont
Originally Posted by Guitar Jones
Stroke it to 490-500 cubes. Torque for days on pump swill.


This ^^

4.25 stroker crank. The rest you had to buy anyway. 600ft/lbs easier than falling out of a tree.

Kevin

Re: Looking for 440 rebuild kit to improve torque [Re: Twostick] #3051327
06/17/22 03:25 PM
06/17/22 03:25 PM
Joined: Jan 2005
Posts: 3,660
Michigan
MarkZ Offline
Worthy
MarkZ  Offline
Worthy

Joined: Jan 2005
Posts: 3,660
Michigan
Originally Posted by Twostick
Originally Posted by Guitar Jones
Stroke it to 490-500 cubes. Torque for days on pump swill.


This ^^

4.25 stroker crank. The rest you had to buy anyway. 600ft/lbs easier than falling out of a tree.

Kevin


I love my 512, but it isn't really conducive to gas mileage. Even with a 3.54 gear and overdrive.


1987 Fifth Avenue - 512/518/D60
Re: Looking for 440 rebuild kit to improve torque [Re: MarkZ] #3051331
06/17/22 03:46 PM
06/17/22 03:46 PM
Joined: Dec 2009
Posts: 18,765
in a cattle trailer down by th...
G
Guitar Jones Online laugh2
Paddle faster! I hear banjo music!
Guitar Jones  Online laugh2
Paddle faster! I hear banjo music!
G

Joined: Dec 2009
Posts: 18,765
in a cattle trailer down by th...
Originally Posted by MarkZ
Originally Posted by Twostick
Originally Posted by Guitar Jones
Stroke it to 490-500 cubes. Torque for days on pump swill.


This ^^

4.25 stroker crank. The rest you had to buy anyway. 600ft/lbs easier than falling out of a tree.

Kevin


I love my 512, but it isn't really conducive to gas mileage. Even with a 3.54 gear and overdrive.

My magnum headed 360 LA gets 7 MPG, 4.10s and no overdrive, I bet your 512 isn't too far off of that. Hoping the NV4500 O/D gets it to at least 10. Probably wishful thinking though as the truck spends 90% of its time below 30 MPH. Still won't be a waste though as I had already purchased most everything for the swap at least 3 years ago. I've spent less than $800 up to this point actually doing the swap and the NP435 was on its last legs.


I raise chickens, so I am literally a chicken tender.

The Scamp is sold, now just two old trucks and one newer one.
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
Re: Looking for 440 rebuild kit to improve torque [Re: Guitar Jones] #3051896
06/20/22 06:37 AM
06/20/22 06:37 AM
Joined: Jan 2003
Posts: 20,629
San Jose,CA
migsBIG Offline OP
Too Many Posts
migsBIG  Offline OP
Too Many Posts

Joined: Jan 2003
Posts: 20,629
San Jose,CA
Thanks for the info us. Realistically, not gonna stroke a 440 for it, tempting that it is. Just looking for a nice runner motor combination for the time being til the other projects get completed.







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