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I remember after grinding/polishing my 273 connecting rods smooth and shiny (back in the 1970's) I sent them out to be shot-peened. When they came back, the surface was more like sand paper.

Who will win the drag race?

Was terra cotta firemist (1974 Cadillac color). New owners painted it black.

Before my '65 Valiant four door 273 become an all out bracket racer, I drove up to Fremont Raceway (80 miles one-way) circa 1973 to run it pure stock in two-barrel form, street tires, 7 1/4 rear end. I was turned away when the tech inspector found I had no seat belts. I believe in '65 seat...

I think I may have overestimated the ring set weight when I ordered my custom billet crankshaft for a small block Mopar. I weighed a used set of rings I had on hand for a 340 with stock pistons and 5/64" top rings and they came out to about 57 grams. However, come to find out the NOS TRW...

Some us might be curious where connecting rods fracture when they "give up the ghost". Can anyone share some fotos of such failures? Thank you.

Anyone still using them? My bracket racer had them back in the '70s on a solid cam (high lift) valve train with dual valve spirngs. I never found a problem with them.

I will be using factory open chamber heads on some street build 340's that will see occasional drag strip time trials.

The finish line is in my new home of La Paz, Baja California Sur, Mexico. I win! (Well, I did drive three classic Mopars down here already-'72 Plymouth Satellite Sebring Plus, 1965 Plymouth Barracuda Formula "S", and 1965 Plymouth Signet convertible). Baja 1000 turns 50

Just wondering if those Mopar offerings had a VIN, and if so how they would have been coded? I am referring to the old factory sponsored program, not the E-body only that shows up in the following link: Dynacorn's 1970 Challenger - The E-Body Lives! - Mopar Muscle Magazine

Had a rev-limiter in my 4-speed '65 bracket car back in the '70's which had Chrysler electronic ignition upgrade. The aftermarket rev-limiter I had in my glove box was a small gray metal box with a dial switch on it. To test it, I would set it at 3000 RPM and rev the motor ... it would limit RPM...

I used to bracket race my four door, four speed, '65 Plymouth Valiant at Fremont Raceway back in the 1970's. Last nite I went to Sonoma Raceway (as a spectator). I noticed on the raceway today something I was not familiar with under their Wednesday nite drags classifications: • Jackpot Open to...

I was curious whether a motor with too high a compression ratio for the gasoline available could experience detonation in neutral, either at idle speed or when run at a steady higher RPM like 2000-3000 RPM during first fire-up/break-in run? Thank you.

Never heard of them until I read this Clevite 77 bearing guide: H series bearings have a medium level of eccentricity, high crush and rod bearings have a hardened steel back and thin overlay. These bearings also have enlarged chamfers for greater crankshaft fillet clearance and are made wi...

Interesting, confusing, and not completely convincing: Ideal Shift Points - Calculated for Various Configurations - LS1GTO.com Forums

Sleeve Bore Engine Blocks - Mopar Muscle Magazine "Oddly, back then sleeved engines were found to produce more power than integral bore blocks. There were no honing plates in those days, and the sleeves isolated the bore distortion from the headbolts."

If I install a custom 340 crankshaft with full radius journals in my project motor, what mods need to be performed so the bearings are not wiped out in the process? I have never seen this explained/discussed on any forum or in any magazine or in any video. I wonder why?

Wiseco K0146A3 Piston Kit - Small Block Mopar 318 / 340 / 360 Reverse Dome

I am not in the least way ambidextrous, but I am right-handed. Was wondering how you left-handed drivers adapt to the gear shift being in your "weak" hand, or does one just prefer the automatic in such cases?

Thinking about stroking or de-stroking a 340 but this is a general question. When stroking or de-stroking a motor, is it customary to change only the rod length or both the rod length and the piston compression height? I'm new at this, so may not understand all of the technical aspects of the...

Here are a few fotos of the 273 (.060 over) with stock cylinder heads that ran a best of 12.72 ET @ 108 mph back in the mid 1970's.

Just wondering if anyone has any data/experience on a dyno or otherwise if lowering compression (like was done by factory vehicles in the 1970's) changes the horsepower curve of a motor, everything else being equal?

When I installed steel shim head gaskets on my 273, I took a copper wire and used epoxy to attach it to a groove in the gasket that circled the cylinder bore, overlapping it on the ends a tiny amount. Upon dis-assembly later, the copper wire had crushed perfectly around the bore and seemed to...

My 65 273 Valiant 4 speed bracket racer was conventionally set up with 8 3/4, 4.56, super stock springs, home fabricated pinion snubber and hooked up well. Until one day, when it suddenly went really squirrely, as if I were racing on water or something. Back in the pit area, i found my 10" M & H...

I always hear how automatic transmissions give a guy a chance at more consistent elapsed times: truth or fiction? Back in the mid 1970's, while power shifting a 1965 Valiant with Mopar 4 speed, I was surprised at Fremont Raceway one Sunday with a "bonus check" (I believe it was a whole ten...

In the past, I used a Mopar 4-speed manual transmission and always did simple burnouts using only second gear. My present build will use a Mopar 904 automatic (1972). One thing I DO NOT want is a manual valve body. I read somewhere that doing burnouts the wrong way or with a stock transmission...

I know I prefer mechanical oil pressure and coolant temperature gauges. I am currently restoring the factory Formula S tachometer in a 1965 Barracuda with an aftermarket circuit board. Now I begin to wonder about the advantages/disadvantages of mechanical vs electric/electronic tachometers...

I am looking for something to do in my "golden years" (was a bracket racer at Fremont Raceway back in the '70s'). I just found an abandoned 1/8 mile asphalt abandoned drag strip right behind my new house here in Baja California Sur, Mexico! It would be fun to see it reopened, perhaps I could...