1987 Dodge D150 LT 225 CI slant 6 from North America
Great truck for reliability!
I haven't had any problems with the truck since I've owned it. The engine runs strong and doesn't burn a drop of oil.
It has the 3 speed auto, which I don't like, and I would like to put a 4 speed manual in it, but I'm not sure if this is do-able. I know this isn't a site to ask for help, but I figure if I can tell what I dislike, some can tell me what I can do to make me like this truck that much more. And that's by switching it to a manual 4 speed for better fuel mileage for the most part and being more fun to drive.
I'm currently in the process of turning this slant 6 into a super six by changing the camshaft, putting in an electronic ignition and changing it from a single barrel carb to a 2 barrel and changing the intake and exhaust manifolds. Only problem is finding the parts to turn it into a super 6.
It's a good truck. I'm 17 and want to have fun. It may not be fast at all, reaching a top speed of 120 kph, but I sure can beat the heck outta this old truck without any worries. The only thing is the fuel; It's killer on the fuel mileage and I wish there was a way to improve this, but really there isn't other than if I take it easy on the gas, put in an automatic with overdrive (if there's one compatible) or a manual 4 speed.
Would you buy another car from this manufacturer? Yes
Review Date: 25th January, 2008
5th Mar 2009, 01:34
If you like the slant six keep it! It is just as reliable, if not better then the 318/360s, less HP with more Torque.
I am in the same boat, 18 with an 86 D150 225 auto that needs some upgrades. Dodge made a four speed OD transmission (A833) that will work for the slant six, you just need the bell-housing. Look for older dodge vans, they always seemed to have them, or old Aspens.
Take note that if you are tearing apart your motor you can shave a good .060 of the top of the block to bump up compression closer to 9.0. I am going to see how it works on my this summer.
15th May 2009, 14:08
Clifford performance has all your performance needs for the slant 6. That's where I got mine. Not for my truck (I just bought it), but for other vehicles. They have everything from 2 piece headers, 4bbl intakes, and cams, to complete rebuild kits and performance heads. They even have a fuel injection kit if that's what you prefer. Good luck and have fun!
5th Apr 2010, 14:27
What kind of mileage does it get? Are we talking like avg. around 15-16. It can't be too bad with a slant 6...
16th Feb 2018, 22:49
I have a 87 d150 I believe. 3.7L engine.
When I turn it over, it idles really high and then after a few minutes it just purrs.
I’ve noticed that when it’s idling at high RPM, coolant shoots out of the right side (if you're standing in front of the truck) power source to the engine.
I’m assuming the power source is to plug it when the temp is cold??
Any feedback would be greatly appreciated
12th Dec 2018, 05:30
I have an 87 D150 with the 225 slant. The driver's side of the block just below the intake has a block heater that looks like a freeze plug with a 3 pin connector in the center.