Tech Q & A

E-Booger, 1991 D-150, 318. My batteryrecently died. After running a new one forseveral days, my truck won’t crank. I hookup the battery and I get buzzer, lights, horn,etc. but when I turn key to start I get onlya click, then all is dead.…

PUMPED UPI can’t recall this ever being a topic, techor otherwise: when did the octane ratingsof gasoline change from MON to the AKI(R+M/2 formula) in the U.S.? I understandthat the “R+M” rating gives up 5 points vs.the MON rating (i.e.…

I have some TorqueFlitetransmission numbers I needinfo on. I think the first two are1976-77, they are stamped Last transmission no.is H2 538334.4028424 is a low-RPM-governor’76-’77 727B. Perfectlygood unit if you simply swapin a high rev…

I am new tothe Mopar scene, after a ride inmy friend’s father’s ’70 ChargerI am hooked. Now I I’m beginningto look for a Mopar to callmine, I am just not sure at thispoint what exactly I want, stockor modified.Here is my question: If I…

Did all Mopars getprimed the same color, regardlessof final paint color?Short answer: Yes.Expanded answer: Yes, butthe actual shade of theprimer used varied quite a bitdepending on the vendor, year,plant, etc. It was always grey,sometimes…

In the late sixties andseventies I had several Darts/Valiants with slant-sixes. A ’70Dart gave up its engine afterfive years or so of hard use. Alocal junkyard had one on theground, the whole thing paintedyellow. The junkman told methat it…

I have heard rumorsthat there were more high-impactcolors planned for theearly ’70s. What light can youshed on this?This story has been circulatingfor years, and, while I havezero proof, it sounds believable.Anyway, it is pure fun,…

Two questionsif I may…(1) The fillerpanels between the front bumperand grille on ’68 NYers arepainted some kind of silver.What is the paint code for thisfinish? (2) My 440 NYer camewith the 624 HD suspensionpkg. What exactly did this…

Can you give me your take onthe Edelbrock DP4B vs Edelbrock Performeron a stock 383?Car is a ’66 Chrysler TC and came witha 2-barrel 383 per the fender tag (assumingthis is just the 270 HP 383). In the early’70s, my dad changed the…

On the way back from a show on a very hot day my ’72 Charger Rallye 440 overheated. After checking for leaks I noticed coolant spraying from the passenger side of the motor. I think the core plug failed. Do you have a vendor and part…