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Anyone use or have a small block double groove AC idler pulley? I could swear my car had one back in the day, and that when i was 18 pulled it off and chucked it, since it was frozen. I have this mystery bracket that fits the two driver side water pump bolt holes and has a threaded welded on...

Just wondering what everyone uses for small block water pumps. I now have to replace the third pump on my 340 in 1500 miles. the first one failed when the shaft moved and caused the pump to squeal real loud because the bearing seized up, the second one did the same thing but ground on the...

I think this stuff is coming from a faulty drier/receiver, but I am curious if anyone has thoughts on what is this stuff causing my AC filter on the low pressure side to keep getting clogged? The system RV2 compressor was completely rebuilt, the drier/receiver was supposedly reconditioned, the...

Interesting turn of events this weekend. I was coming back from a cruise in, just a Friday night meetup of about 80 cars at the local Freddys hamburger joint, and I head this strange sound like something rattling under the hood at 3500 rpm, but would go away at 3000 rpm. I started checking...

When I restored my 73 Roadrunner, back on 2013 I installed on of these factory style heater valves, now here we are 5 years later, and the damn thing cracked, spewing coolant everywhere, so does anyone have a better solution other than one of these plastic valves???? I need a better solution...

I am tired of screwing with water pumps and water pump problems on my 340. When the motor was built, I had a 8 blade mopar performance pump, but it was in the standard housing, so I changed it to the proper mopar performance 8 blade with the correct housing, only to have it start leaking at the...

I am looking to replace my original water pump bolts, the ones I have been using are a bit pitted, and just feel weak when I torque them, and I certainly don't want one to snap off. I will be changing my water pump soon, so taking the opportunity to replace them. My question, classic...

Apologies if I already asked this question, but I wanted to revisit. Long story short, after I had all my ac system converted to 134a, I reassembled it, and found I had some contamination most likely in the evaporator as it was the only part that wasn't new or reconditioned, I only cleaned it...

On small block motor does anyone use sealant on the water pump gasket or do you just use a quality gasket with no sealant? What about the bolts that penetrate the water jacket?

So, I was curious to know if anyone else using a fan clutch, if yours sings or whines? When I start up the car there is a very distinct high pitch whine and it goes up and down slightly in frequency and goes is present most of the time, its really annoying, its a new flex-a-lite clutch, ball...

I was told, that when the capillary on the expansion valve is submerged in ice water, blowing air through the valve should be come more restricted, but darned if I can tell if there is any change. So, just wondering if anyone knows how to definitively test the expansion valve outside of the...

Has anyone seen new 1/2" x3/8" NPT beaded end hose barb? These go on the intake manifold for the heater hose. I found brass and aluminum, but cant seem to find one that is steel. Was thinking for expansion purposes since manifold is cast it would be better to use a steel one rather then...

So, got the motor back today, and went to get a thermostat, and they wanted to sell me a 195, but I swear the service manual spec is for a 180, but cant seem to find it again. Now the motor, 340 with 28" rad, has been built up a bit, so should I run it a bit hotter? Anyone?

I have been looking into converting my original AC system from R12 to R134a, and wondering a few things. Is there another thread on this topic? Has anyone done this yet and what changes did you make? I have read the following changes should be made, 1. the Schrader valves need to be...

I've been trying to find a coolant overflow bottle like this one in the photo. Its part number 3673808, and goes with my 73 Roadrunner and its 28" radiator. I know these were used on other b-bodies and some c-bodies, but it would seem that nobody makes a replacement. This one is still good...