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Finally removed the connecting rod caps from the 340 connecting rods after I had a shop install ARP rod bolts and recondition the large end. I noticed right off the bat one nut could not be removed by hand after it had been broken loose with a breaker bar. First tried a different nut but same...

Back in the 1970's I remember re-torquing the steel shim head gaskets on a 273 build after the first cool down period after breaking in the camshaft. I did not loosen the bolts, only re-torqued them as they were. I read online today that when re-torquing, the bolt should first be backed off a...

My parents purchased a new '71 Road Runner 383 automatic (see photo of it in present condition back east somewhere). According to Uncle Tony, during that year an automatic 383 had a cast crankshaft and the four-speed had a forged crankshaft (I never heard that before).

I mistakenly purchased two oil pumps drive for a 340 I am currently rebuilding. After examining them side to side I found the gear end is slightly different. One has a gear teeth that measures about 16 mm (.630") high/thick (green paint splash in photo) and the other measures only 14.5 mm...

I was concerned when one head bolt I removed from a '92 Jeep Cherokee had half the threads that feed into the cylinder block filled with what looked like black carbon. The bolt was also more stubborn than the other bolts to break free. An online search found some believe it is oil on the threads...

Has a factory clock and for some reason a '71 Road Runner grille. Go to minute 37:00 to see wasted valve lifter:

I have a Satellite Sebring Plus with the stock 8 1/4" rear end and 2.71 ratio (I have upgraded to sure-grip). I'm not worried when I upgrade the 318 to 340, but thought I would ask anyway about anyone having their own 8 1/4" fail at some time (either from normal wear/tear or [heaven forbid]...

A couple of questions. I know 3/4 and 1 ton pickups/vans usually have "full-floating" differentials (a difference in axle bearings of some kind compared to the average passenger vehicle differential). Photo is a local '69 Charger with a transplanted Dana 60 from a truck. So I would like to ask...

Driving by our local differential shop I stopped in my tracks when I recognized this Dana 60 ready to be swapped from a Ford Super Duty truck into another (unknown) vehicle.

I posted this on FABO also, but since the 904 is common to BBodies, I am posting here also: The '65 Formula S had a transmission "rebuild" here in Mexico during the recent body restoration. After re-installing the engine/transmission, the vehicle sat for a few months. I could roll it in and out...

I know u-joints on the brink of collapse will contribute to a clunk sound when shifting an automatic into gear (with the brake applied), but what if the u-joints are sound and one hears a clunk anyway? I can't picture in my mind what goes on inside the differential to cause such a phenomenon...

At full throttle, my parent's new '71 383 Road Runner automatic would shift at exactly 4,500 RPM from first to second and from second to third (per factory 7,000 RPM tach).

I am finding the oil hole exiting the adjusting screw on the old factory 273 adjustable rocker arms comes in two diameters. They appear to be identical otherwise. I suspect the reason may be a difference between intake and exhaust rocker arms, but I have not seen that discussed anywhere that I...

Has anyone else found springs replacing the spacers? I was told these are from a circa '66 273 but I was thinking maybe a 318 Poly?

The "complete" core 340 I purchased had a forged crank installed without the drilled 1/2 and 7/8 rod journals. Don't know if it was from a 273 or 318 or what. I have been hesitant to put it back together with new rings and bearings because I don't know the history of the rotating assembly...

I was curious what '60's and '70's Mopar Motors came from the factory with forged pistons?

Vehicle was on the lift when I noticed only one of two bolts holding the trans mount. Thank you.

Crawled under the '72 Satellite 318/auto today and looks like a trans mount bolt is missing. The FSM shows a rectangular spacer used instead of a washer. Why the spacer? I don't see it "spacing" anything in the sketch. Thank you.

When I pull the 318 and replace it with the 340, I may want to upgrade the torque converter (The 904 has already been rebuilt, including shift kit, about 8,000 miles ago). Can I just yank the installed torque converter off and push the replacement torque converter on while the engine is removed...

Advertised on Ebay as a six quart pan, but is made to handle five quarts in the sump, plus whatever the oil filter may hold. Is the factory 340 windage tray recommend with this oil pan? Would the windage tray even fit? What are you guys doing? I'm glad the pickup (M301-1) has a bracing tab...