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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #1 ·
Start of 64 Chevy build. Old truck sitting in back. Thought it would be cool to start another money pit, just didn’t want another LS motor build so thought a odd ball ISB 4 cylinder would be expensive. So opened the wallet and here we go.
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #2 ·
Tare down and start the fun. Always wanted a shortbed, so I’ll make one. C notch and gussets.
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #3 ·
Engine and Trans mounting. Engine mount from freight liner van. Cut it down and trimmed up to fit in the frame rails. Made 2 trans mounts, one mid mount and another tail mount. Keep it all in one place and lots of cross members to eliminate chassis flex Auto part Automotive exhaust Automotive exterior Vehicle Exhaust system Bumper Automotive exterior Auto part Auto part Bumper Automotive exterior Bumper Vehicle Wheel Auto part Machine
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #4 ·
Engine clean up Vehicle Engine Auto part Motor vehicle Car Engine Auto part Automotive engine part Motor vehicle Fuel line
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #5 ·
Engine trans in for mounting and mock up Land vehicle Vehicle Car Motor vehicle Hardtop Land vehicle Vehicle Car Motor vehicle Automotive exterior
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #6 ·
Circle track style rear axle Ford 9” build. Aluminum Strange center section from Mike at Quick Performance. 3.50 ratio. Speedway Grand National housing. Full float hubs. 31 spline axles. Grizzly locker Formula libre Tire Automotive tire Vehicle Motor vehicle Toolroom Metalworking Machine Tire Automotive tire Auto part Gas
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #7 ·
Rear rims. American racing torq thrusts 15x10 with 295/50R15 rubber. Tire Synthetic rubber Automotive tire Tread Auto part Toolroom Machine Machine tool Auto part Engine Rim Alloy wheel Wheel Auto part Automotive wheel system
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #8 · (Edited)
Chopping bed, nothing pretty here. Kids got ahold of summit stickers I see. Hack attack Land vehicle Vehicle Car Motor vehicle Pickup truck Land vehicle Vehicle Car Pickup truck Motor vehicle Vehicle Automotive exterior Car
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #9 ·
Harness wiring and cleanup. Busting out the DT Deutsch connectors and loom Wire Electrical wiring Auto part Technology Cable
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #10 ·
Changing ECM parameters. Disabling safety junk and engine protection, eliminate torque derate, change top speed, axle ratio, etc. just fighting the rpm parameters. If anyone has any ideas let me know. Looking for 3400 rpm. Locked out at 3000. I don’t have enough experience with a CM850 ECM. Looking to an aftermarket ECM, aftermarket supplier has base tune built and a running model. Once mine is road worthy, ECM to be switched.
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #11 ·
Gauge cluster Fabrication. Autometer gauges. Boost gauge mounted in dash panel with a Ametek J1939 CAN gauge. Ametek gauge is awesome as it will tell you everything the engine ECM is seeing over the 1939 datalink. That one single gauge gives oil pressure, water temp, mph, rpm, trans temp, and more. Even acts as a warning light/dummy light indicator. Best eBay 20 bucks yet. Vehicle Motor vehicle Car Steering wheel Steering part Gauge Motor vehicle Vehicle Tachometer Auto part Gauge Motor vehicle Measuring instrument Speedometer Tachometer
 

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This is going to one nice ride. Any particular reason for wanting the high RPM. Peak torque of that engine will be around 1800 RPM. Check with member Steed. He's working on an ISB with plans to get into the 300+HP range. He's a computer expert with the US Army.
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #13 ·
Took 8” off the rear of bed today. Also the toy man from OnTrac showed today with a front disc conversion drop spindle kit and some 15 x7 torq thrusts for the front end. Front drop will be 5.5” and rear is 7”. Front is 3” drop springs with 2.5 inch spindle. Rear is 5” springs and 2” blocks. Tire Rim Spoke Wheel Alloy wheel Land vehicle Car Vehicle Motor vehicle Classic car Auto part Tool accessory Metal Tool Metalworking hand tool
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #15 ·
Got an hour in after playing with kids. Love my little guys and gal. Got bearings packed and control arms mounted after work and family time. Family and church first then fun.
 

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I do like the way you are going about on this build and definitely subscribing to this one ! It looks like a fun ride when you get it done ! bouncebounce
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #18 · (Edited)
Well been working in them hills lately. should get back to truck in two weeks, being sent to Yosemite area for awhile. But here’s some of Gods country
 

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1964 Chevy C10, Cummins ISB170, Allison 1000 5 speed, full float 9”, ECU Tune, 5/7” static drop
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220 Posts
Discussion Starter · #19 ·
Getting the roller back together. Installed quick ratio steering box, cpp sway bar, and some other stuff. The Cummins pretty much maxed out the lowering springs, so need to find some big block springs. I’ll start trans tunnel next then brake system and power steering.
 

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Very very clean work!
I'm not sure your end performance goal, but with my rear end gears, tire size and the Allison I've found that the TCM parameters work well with the 3000 rpm gov limit that I too bumped mine up to. I have my application in a 6200 lb truck with 38.5" tires and 4.57 gears and its snappy quick once the ECM maps let the fuel in. Its a touch laggy at the first go but I've not found a situation where I've needed more RPM before the Allison grabbed the next gear and the engine had plenty of torque to make it go. Since you have access to Insite it seems, do you have access to Allison DOC? You can use the secondary shift schedule lead to load a "performance" shift schedule that you can tweak with some to get a better grab and go acceleration and keep it under the 3k gov.

One of these days, someone is going to be able to crack the Chrysler ECMs and apply them to these engines... And then it'll be a whole new world.

I do like the build a lot man. Very clean work and good attention to detail, which is something you are seeing less and less on these DIY boards.

Also, what were you doing out on Yosemite? I am a bridge inspector / engineer myself and have worked in a lot of the major parks over the past 10 years.
 
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