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While the 4104230 block was used in cars and trucks around 1981-1984, there was also a race block with the same number, but it also had a large X where the dipstick tube was, and may not have been drilled for the dipstick. If it's the race block it should have four bolt mains, and likely a left...

I'm not caught up in it at all, just pointing out some things that interested people might want to know. If you read all the other replies, you'll note that a soft pedal has been mentioned in DOT 5 systems by some users on here. If it works for you, great.

SAE J1705, Appendix A, A.2.2.8, states “Air Solubility – It has been reported that dimethyl polysiloxane fluid, which is a major part of silicone-based, low water-tolerant type brake fluids can typically contain dissolved air at a level of 16% ±3% by volume at standard temperature and pressure...

I don't know why someone states that it will harm paint, we all know that silicone won't hurt it. Soft pedal stories arise from the fact that DOT 5 is prone to dissolving or entrapping air bubbles in solution far more than the other types, which is why DOT 5 isn't recommended for ABS systems as...

I don't think the NHTSA in its Federal Motor Vehicle Safety Standards is parroting when they advise: "If your vehicle contained a brake fluid other than DOT 5 in its brake system, we recommend that the old fluid be flushed completely out of the brake system, before being replaced with DOT 5...

While I like Ehrenberg, his comments on DOT 5 compatibility don't agree with the rest of the industry. "Mixing DOT 5 with glycol-based brake fluids like DOT 3 or DOT 4 can lead to system malfunctions." A quote from this site: DOT 4 vs DOT 5 Brake Fluid: 10 Major Differences - MrOilGuy One of...

I can see that it's from experience that you've been warning about the dangers of tire smoke, Bob. :)

That only means that they are made by the same company, but not necessarily to the same standards. Walmart can provide their own specifications for what they want built, and the end result may or may not match other brand names. Optima is made by Clarios (formerly Johnson Controls Inc.) who...

Just be aware that marine batteries are built differently, and also rated differently. Instead of CCA for car batteries, marine batteries are often rated at MCA, for Marine Cranking Amps, which is a different rating. A car battery rated at 600 CCA would likely be rated at 800 MCA, so you'll...

Never thought about it. The ones in the first picture are what I have.

The squirter might be clear, but ensure that the gasket isn't blocking a hole when you reassemble it.

Other info from the past: How Dry Ice Is Used To Deep Clean Cars Dry ice cleaning Dry ice blasting Dry Ice Blasting - Comments and Experince please Media Blasting

That wouldn't be likely. It could be given a special racing oil designation, but wouldn't meet the SN specs. And there would be less need for high zinc levels; serious racing usually involves changing the oil for each race, before the zinc is gone, which is the reason that WIX (and other)...

Amsoil's site does list their 30W Break In Oil as having 2,200 ppm Zinc, and 2,000 ppm phosphorus.

Amsoil z-rod high zinc oil is also SL rated, but they state that it has ZDDP levels that exceed the limits for SM oil.

Plenty of 'local' products come from elsewhere. Back in 1980, I bought a Holley spreadbore (the kind that is a replacement for a Quadrajet) which looked innocent on the outside. You had to disassemble it to find the "Made In Japan" castings inside. Holley also brought parts in from China, and...

Where are these cities, I hadn't heard of them. Japan does have a city named USA, but it goes back hundreds of years. Products have to have country of origin on them, not cities of origin.

There are hundreds of car companies over there, China is the country with the largest automotive industry in the world. GM helped out when they started building Buicks over there in 1997. They now also build Chevrolet and Cadillac in China. Meanwhile, Stellantis used to make Jeeps over there...

Hemet is where Bladecutter resides.

When I bought my road runner in 1977, it didn't have a shroud on the 22" radiator. Cooling wasn't an issue with either the 383 or later 440.