Looking for 440 rebuild kit to improve torque
#3044008
05/20/22 09:03 PM
05/20/22 09:03 PM
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Joined: Jan 2003
Posts: 21,599 San Jose,CA
migsBIG
OP
YouTube is my go-to news source
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OP
YouTube is my go-to news source
Joined: Jan 2003
Posts: 21,599
San Jose,CA
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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.
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Re: Looking for 440 rebuild kit to improve torque
[Re: mgoblue9798]
#3049425
06/10/22 02:36 PM
06/10/22 02:36 PM
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Joined: Nov 2021
Posts: 240 Falcon, CO
Mad-Max
enthusiast
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enthusiast
Joined: Nov 2021
Posts: 240
Falcon, CO
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...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 (project): 318, A-833od, 8-3/4, 3.23's 14 Wrangler JKU M-380 "Oxx" (under construction): Magnum 360, 46rh, Atlas4, D60/14b-5.38s-Grizzlys, 40s 07 Ram 3500 MegaDually 4x4 "Big Mack": 5.9 6BT, G56 'Toy Hauler' 52 Willys M-38 "Poncho"
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Re: Looking for 440 rebuild kit to improve torque
[Re: migsBIG]
#3049475
06/10/22 06:54 PM
06/10/22 06:54 PM
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Joined: Dec 2009
Posts: 20,600 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,600
in a cattle trailer down by th...
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Stroke it to 490-500 cubes. Torque for days on pump swill.
"Follow me the wise man said, but he walked behind"
'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. Rear disc and hydroboost coming soon! 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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Re: Looking for 440 rebuild kit to improve torque
[Re: Guitar Jones]
#3049551
06/11/22 12:05 AM
06/11/22 12:05 AM
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Joined: May 2003
Posts: 6,545 Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
Joined: May 2003
Posts: 6,545
Downtown Roebuck Ont
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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
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Re: Looking for 440 rebuild kit to improve torque
[Re: Twostick]
#3051327
06/17/22 04:25 PM
06/17/22 04:25 PM
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Joined: Jan 2005
Posts: 4,368 Michigan
MarkZ
Worthy
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Worthy
Joined: Jan 2005
Posts: 4,368
Michigan
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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
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Re: Looking for 440 rebuild kit to improve torque
[Re: MarkZ]
#3051331
06/17/22 04:46 PM
06/17/22 04:46 PM
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Joined: Dec 2009
Posts: 20,600 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,600
in a cattle trailer down by th...
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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.
"Follow me the wise man said, but he walked behind"
'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. Rear disc and hydroboost coming soon! 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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